The document discusses different types of brain scans including CT, MRI, fMRI, PET, and SPECT scans. It then covers various topics related to brain development including vision, touch, movement, language, music, and windows of opportunity during early childhood when certain skills are most easily learned.
The document provides an overview of the structure and functions of the human brain. It discusses that the brain weighs around 3 pounds and is made up of neurons and glial cells. Different parts of the brain are responsible for various functions like vision, hearing, memory, language, movement etc. Brain imaging technologies like MRI, PET scans have helped researchers understand how different activities light up different areas of the brain. The document also discusses memory, learning, brain development and various websites for further information.
The document discusses the structure and function of the brain. It describes how the brain is made up of different parts like the cerebral cortex, hippocampus, amygdala, and different lobes that each have specialized functions. It explains how neuroscience technologies like MRI, PET scans, and EEG have helped researchers understand how the brain works and how activity changes with tasks like auditory, visual, motor, and memory processing.
The document discusses the major structures of the human brain. It describes the four lobes in each hemisphere - the frontal, parietal, temporal, and occipital lobes. The cerebellum coordinates muscle movements. The occipital lobes process visual information. The temporal lobes process auditory information. The parietal lobes process sensory information. The frontal lobes are largest in humans and are involved in higher cognitive functions. Additionally, the limbic system generates instinctive emotions and the brain stem controls vital unconscious functions like breathing.
The document discusses the development of the brain from prenatal stages through early adulthood. It describes how the brain is composed of the forebrain, midbrain and hindbrain. During development, neurons migrate to different areas of the brain and make connections through myelination. Brain development continues through childhood and adolescence as different lobes and areas mature at varying rates. Gender differences also exist in the timing of brain maturation.
The document provides an overview of the major structures and functions of the human brain. It discusses the evolution of the brain from the reptilian to paleomammalian to neomammalian stages. It then describes the major parts of the cerebrum including the cerebral cortex, basal ganglia, ventricles, and meninges. Finally, it outlines several key functional areas of the cerebrum such as the motor, sensory, and language centers.
The document discusses the main parts of the brain including the forebrain, midbrain, and hindbrain. The forebrain contains the cerebrum, thalamus, and hypothalamus. The cerebrum is the largest part of the forebrain and contains the hippocampus for storing memories. It is divided into two hemispheres. The thalamus relays information and controls consciousness and pain. The hypothalamus controls pleasure, pain, and connects the brain to the endocrine system.
The human brain controls many bodily functions through three primary areas: the hindbrain, midbrain, and forebrain. The hindbrain regulates basic functions like breathing and heart rate. The midbrain controls vision, hearing, and eye movements. The largest area, the forebrain, is divided into the cerebrum and limbic system. The cerebrum is responsible for higher thinking and the limbic system regulates emotions and memories. Together these brain areas allow humans to not only survive but think, feel, and learn.
The document provides an overview of the structure and functions of the human brain. It discusses that the brain weighs around 3 pounds and is made up of neurons and glial cells. Different parts of the brain are responsible for various functions like vision, hearing, memory, language, movement etc. Brain imaging technologies like MRI, PET scans have helped researchers understand how different activities light up different areas of the brain. The document also discusses memory, learning, brain development and various websites for further information.
The document discusses the structure and function of the brain. It describes how the brain is made up of different parts like the cerebral cortex, hippocampus, amygdala, and different lobes that each have specialized functions. It explains how neuroscience technologies like MRI, PET scans, and EEG have helped researchers understand how the brain works and how activity changes with tasks like auditory, visual, motor, and memory processing.
The document discusses the major structures of the human brain. It describes the four lobes in each hemisphere - the frontal, parietal, temporal, and occipital lobes. The cerebellum coordinates muscle movements. The occipital lobes process visual information. The temporal lobes process auditory information. The parietal lobes process sensory information. The frontal lobes are largest in humans and are involved in higher cognitive functions. Additionally, the limbic system generates instinctive emotions and the brain stem controls vital unconscious functions like breathing.
The document discusses the development of the brain from prenatal stages through early adulthood. It describes how the brain is composed of the forebrain, midbrain and hindbrain. During development, neurons migrate to different areas of the brain and make connections through myelination. Brain development continues through childhood and adolescence as different lobes and areas mature at varying rates. Gender differences also exist in the timing of brain maturation.
The document provides an overview of the major structures and functions of the human brain. It discusses the evolution of the brain from the reptilian to paleomammalian to neomammalian stages. It then describes the major parts of the cerebrum including the cerebral cortex, basal ganglia, ventricles, and meninges. Finally, it outlines several key functional areas of the cerebrum such as the motor, sensory, and language centers.
The document discusses the main parts of the brain including the forebrain, midbrain, and hindbrain. The forebrain contains the cerebrum, thalamus, and hypothalamus. The cerebrum is the largest part of the forebrain and contains the hippocampus for storing memories. It is divided into two hemispheres. The thalamus relays information and controls consciousness and pain. The hypothalamus controls pleasure, pain, and connects the brain to the endocrine system.
The human brain controls many bodily functions through three primary areas: the hindbrain, midbrain, and forebrain. The hindbrain regulates basic functions like breathing and heart rate. The midbrain controls vision, hearing, and eye movements. The largest area, the forebrain, is divided into the cerebrum and limbic system. The cerebrum is responsible for higher thinking and the limbic system regulates emotions and memories. Together these brain areas allow humans to not only survive but think, feel, and learn.
The human brain is larger relative to body size than any other animal. While whales and elephants have larger brains absolutely, the human brain is almost twice as large as a dolphin's and three times larger than a chimpanzee's when adjusted for body size. This is due to expansions in areas like the cerebral cortex which is associated with advanced cognitive functions. The human brain requires a high level of energy despite being only 2% of body weight. It plays a key role in functions like memory, language, sleep, and dreaming. However, researchers have shown that brain-computer interfaces designed for entertainment could potentially be hacked to extract private information from a person's thoughts.
The document presents information about the human brain through an interactive presentation. It discusses basic facts such as the brain's average weight and composition. It also outlines the main lobes of the brain and their functions, including the frontal lobe's role in reasoning, the temporal lobe's role in memory and hearing, and the parietal and occipital lobes' roles in sensory processing and vision. Finally, it lists some methods for studying the brain and provides additional resources for learning more about brain anatomy and images.
The forebrain contains several important structures and is located at the front of the brain. It contains the limbic system, thalamus, hypothalamus, pituitary gland, basal ganglia, hippocampus, ventricles containing cerebrospinal fluid, and meninges. The limbic system controls behaviors like motivation and emotions. The thalamus acts as a relay for sensory information to and from the brain. The hypothalamus and pituitary gland regulate hormones that control eating, drinking, temperature, and stress levels. The hippocampus stores new memories.
The human brain is one of the most complicated objects in the universe. Although it weighs less than 3 pounds, it manages everything from our heart rates to our thoughts and feelings. The functions of the brain are varied, and include: thinking, perception (sensing), emotion, signaling, and many of our physical functions. Our cognition, feelings and behavior are all the result of our brains.
The document summarizes the major parts and functions of the human brain. It describes how the brain is made up of distinct evolutionary parts, including the brain stem which controls basic functions, and the more developed cerebellum and cerebrum. It then provides details on the specific regions and lobes of the cerebrum, including the frontal lobe which governs cognitive thought, and the structures of the limbic system involved in emotion. The document emphasizes the brain's remarkable plasticity and ability to relearn even after injury like stroke.
Presentación relacionada a que es el cerebro, algunas de sus partes y las funciones de las mismas, además de mencionar cómo debemos cuidarlo y protegerlo.
1) The cerebrum is the largest part of the brain and controls thinking, memory, voluntary movement, and other cognitive functions.
2) The cerebellum controls balance, movement, and muscle coordination.
3) The brain stem connects the brain to the spinal cord and controls involuntary functions vital for survival like breathing and blood circulation.
This tutorial software teaches users about the different parts of the brain through pictures and descriptions. It contains sections on various brain regions like the cerebrum, cerebellum, hypothalamus, and more. For each part, the functions are listed. The tutorial includes a brief quiz to reinforce the learning. Users can click on orange tabs to learn about each part or the red quiz button to test their knowledge. The goal is to help both students and teachers in the learning process about brain anatomy.
The document discusses the limbic system and emotional brain development. It notes that the limbic system, located in the middle of the brain, is specialized for emotional matters. Early emotional experiences form a template that strongly influences later emotional development and brain organization. The limbic system and prefrontal lobes develop pathways that provide the framework for emotional intelligence, which starts developing very early in life and is influenced by a child's emotional environment and their basic needs for love, attachment, attunement, soothing, and appropriate boundaries being met.
The human brain is made up of millions of neurons that allow us to think, feel, understand the world, and remember information. It regulates all human activity both consciously through complex mental processes like thinking and reasoning, and unconsciously through involuntary functions like heart rate and digestion. The three major parts of the brain are the cerebrum, which generates thoughts and controls movement; the cerebellum; and the brainstem.
The document outlines the three layers of the brain:
The brain stem contains 7 main parts including the medulla, pons, and cerebellum that regulate basic functions like breathing and movement coordination.
The limbic system's hippocampus, amygdala, and hypothalamus are responsible for memory, emotion, and regulating body temperature and fluids.
The cerebral cortex's four lobes - frontal, parietal, temporal, and occipital - control thinking, touch sensation, auditory processing, and visual information, respectively.
This document describes a final project studying the brain through a multi-sensory exercise for a soccer goalkeeper. The exercise tests the visual and vestibular systems by having the goalkeeper balance on an unstable board while quickly responding to stimuli appearing on both sides, without losing balance. It evaluates the integration of the visual, vestibular and proprioceptive systems as well as decoding abilities, balance, processing speed and cognitive flexibility. The course was effective at simply and clearly communicating complex topics and it was easy to understand thanks to the knowledge and communication skills of the instructor, Peggy Mason.
The document provides an overview of the major structures and functions of the human brain. It discusses the evolution of the brain from the reptilian to paleomammalian to neomammalian stages. It then describes the major parts of the brain including the cerebrum, brainstem, diencephalon, cerebellum, ventricles, meninges, and various lobes, areas, and structures within these regions. For each area, it highlights the key functions and neurological pathways.
The document discusses several key topics about the brain:
- The brain controls all functions of the body and is constantly working even at rest. It sits atop the brainstem which connects to the spinal cord and nerves throughout the body.
- The brain can be affected by diseases like cancer and tumors which can be caused by radiation from sources like cell phones.
- Optical illusions reveal that the eyes are controlled by the opposite sides of the brain, with the left eye controlled by the right brain and vice versa.
- Studies show that classical music can improve memory and IQ temporarily in infants and adults by stimulating the temporal lobe of the brain as it processes the sounds.
The document discusses the biological basis of behavior and the human brain. It covers several key points:
1. Heredity and evolution influence human physical and mental characteristics. The brain is programmed for language and social skills at birth.
2. The brain consists of three main layers - the hindbrain, midbrain, and forebrain. The hindbrain includes the medulla, cerebellum, and pons and controls vital functions like breathing.
3. The limbic system, which includes the amygdala and hippocampus, is responsible for emotions and forming memories. The amygdala handles emotional responses while the hippocampus aids memory formation.
The document describes the structure and functions of different parts of the human brain. It discusses the cerebrum, cerebral cortex, lobes of the brain including the frontal, parietal, occipital and temporal lobes. It identifies various cortical regions and describes their functions, such as the primary motor cortex, Broca's area, visual cortex, auditory cortex etc. It also describes sulci, fissures and gyri of the cerebral cortex.
The document discusses various brain structures involved in different daily activities like sleep, eating, brushing teeth, defecating, and watching TV. It notes that the hypothalamus and pituitary gland regulate sleep through hormones. When eating, the hypothalamus, amygdala, orbitofrontal cortex and caudate are involved - the amygdala processes emotions related to food. Brushing teeth and defecating involve memory, sensory-motor skills and structures like the thalamus, limbic system and cerebellum. Watching TV requires the inferior colliculi for processing auditory stimuli. Understanding the nucleus accumbens and its role in reward and reinforcement could provide insights for addiction counseling.
The document discusses brain development in infants and young children. It notes that the brain develops rapidly in the first few years of life, with neurons forming connections and synapses proliferating. Early experiences play a crucial role in shaping brain development as connections are reinforced or pruned. The environment influences how the brain forms, with chronic stress or extreme deprivation potentially harming development. Proper stimulation and nurturing experiences are important for healthy brain growth.
The document discusses how brain-based learning has replaced behavioral psychology due to new technologies like MRI, EEG, and PET scans. It explains that learning forms connections in the brain through concrete experiences rather than just reading. It also outlines how the brain develops through overproduction and pruning of synapses during critical periods, and how risky behavior during adolescence can both help and hinder frontal cortex development.
The document provides information about the structure and functions of the human brain. It discusses the different parts of the brain including the cerebral cortex, limbic system, cerebellum, and brain stem. It describes the locations and roles of the frontal lobe, parietal lobe, occipital lobe, and temporal lobe within the cerebral cortex. The summary also mentions that the brain is made up of billions of neurons and gives humans abilities such as reasoning, feeling, and adapting.
5Physical Development
Novastock/Photolibrary/Getty Images
Learning Objectives
After completing this module, you should be able to:
ሁ Describe changes in body and brain structure from birth through adolescence.
ሁ Detail the process of nerve function and how neurons transmit signals.
ሁ Provide behavioral examples that demonstrate how the brain is organized.
ሁ Outline major milestones in motor development.
ሁ Clarify important issues related to toilet training.
ሁ Identify warning signs of various physical disabilities that may first appear in early childhood.
ሁ Describe physical changes that take place during puberty, including historical and cultural trends,
and the differential impact on males and females.
Section 5.1General Patterns of Growth
Prologue
Among infants and young children, tremendous changes occur in every domain of develop-
ment. However, none are more apparent than the physical changes. When new parents talk
about their baby’s growth, the first thing that usually comes to mind is height, weight, and
motor activity. Imaging devices now allow us to track coinciding changes in brain tissue. We
can conclusively differentiate between a male brain and a female brain—even at birth. Though
we are far from making predictions about physical development based on brain scans, we can
predict some effects of deprivation. For instance, malnutrition can have far-reaching conse-
quences, extending into physical, cognitive, and even psychosocial domains.
Quite unlike other animal species, human infants are virtually helpless at birth. Babies can
eat only if a nipple is provided; they cannot move objects out of the way or closer; and for the
most part they cannot manipulate the physical structure of the environment. Initially they
do not even have the muscle strength needed to hold up their heads. It is only with adult
assistance that infants can survive and eventually optimize growth. Technology and scien-
tific advancement have allowed us to better understand how we transition from completely
dependent beings into adolescents who are perfectly capable of walking away from their par-
ents. This module focuses on those physical developments.
5.1 General Patterns of Growth
Though parents do not often notice, the heads of infants are disproportionately large com-
pared to the rest of their bodies. On their way to adult proportions, the torso and limbs grow
faster than the head. This pattern of growth is an example of directionality, one of the gen-
eral principles of human growth. In this case, the direction is
cephalocaudal, literally meaning “head to tail.” At birth not
only is the head more developed physically than the rest of
the body, but also vision and hearing precede growth of the
limbs. That is, babies begin to focus their eyes on what they
hear well before they begin walking or perform coordinated
hand movements.
Physical growth also occurs in a proximodistal pattern—
from the inside out. In the prenat ...
The human brain is larger relative to body size than any other animal. While whales and elephants have larger brains absolutely, the human brain is almost twice as large as a dolphin's and three times larger than a chimpanzee's when adjusted for body size. This is due to expansions in areas like the cerebral cortex which is associated with advanced cognitive functions. The human brain requires a high level of energy despite being only 2% of body weight. It plays a key role in functions like memory, language, sleep, and dreaming. However, researchers have shown that brain-computer interfaces designed for entertainment could potentially be hacked to extract private information from a person's thoughts.
The document presents information about the human brain through an interactive presentation. It discusses basic facts such as the brain's average weight and composition. It also outlines the main lobes of the brain and their functions, including the frontal lobe's role in reasoning, the temporal lobe's role in memory and hearing, and the parietal and occipital lobes' roles in sensory processing and vision. Finally, it lists some methods for studying the brain and provides additional resources for learning more about brain anatomy and images.
The forebrain contains several important structures and is located at the front of the brain. It contains the limbic system, thalamus, hypothalamus, pituitary gland, basal ganglia, hippocampus, ventricles containing cerebrospinal fluid, and meninges. The limbic system controls behaviors like motivation and emotions. The thalamus acts as a relay for sensory information to and from the brain. The hypothalamus and pituitary gland regulate hormones that control eating, drinking, temperature, and stress levels. The hippocampus stores new memories.
The human brain is one of the most complicated objects in the universe. Although it weighs less than 3 pounds, it manages everything from our heart rates to our thoughts and feelings. The functions of the brain are varied, and include: thinking, perception (sensing), emotion, signaling, and many of our physical functions. Our cognition, feelings and behavior are all the result of our brains.
The document summarizes the major parts and functions of the human brain. It describes how the brain is made up of distinct evolutionary parts, including the brain stem which controls basic functions, and the more developed cerebellum and cerebrum. It then provides details on the specific regions and lobes of the cerebrum, including the frontal lobe which governs cognitive thought, and the structures of the limbic system involved in emotion. The document emphasizes the brain's remarkable plasticity and ability to relearn even after injury like stroke.
Presentación relacionada a que es el cerebro, algunas de sus partes y las funciones de las mismas, además de mencionar cómo debemos cuidarlo y protegerlo.
1) The cerebrum is the largest part of the brain and controls thinking, memory, voluntary movement, and other cognitive functions.
2) The cerebellum controls balance, movement, and muscle coordination.
3) The brain stem connects the brain to the spinal cord and controls involuntary functions vital for survival like breathing and blood circulation.
This tutorial software teaches users about the different parts of the brain through pictures and descriptions. It contains sections on various brain regions like the cerebrum, cerebellum, hypothalamus, and more. For each part, the functions are listed. The tutorial includes a brief quiz to reinforce the learning. Users can click on orange tabs to learn about each part or the red quiz button to test their knowledge. The goal is to help both students and teachers in the learning process about brain anatomy.
The document discusses the limbic system and emotional brain development. It notes that the limbic system, located in the middle of the brain, is specialized for emotional matters. Early emotional experiences form a template that strongly influences later emotional development and brain organization. The limbic system and prefrontal lobes develop pathways that provide the framework for emotional intelligence, which starts developing very early in life and is influenced by a child's emotional environment and their basic needs for love, attachment, attunement, soothing, and appropriate boundaries being met.
The human brain is made up of millions of neurons that allow us to think, feel, understand the world, and remember information. It regulates all human activity both consciously through complex mental processes like thinking and reasoning, and unconsciously through involuntary functions like heart rate and digestion. The three major parts of the brain are the cerebrum, which generates thoughts and controls movement; the cerebellum; and the brainstem.
The document outlines the three layers of the brain:
The brain stem contains 7 main parts including the medulla, pons, and cerebellum that regulate basic functions like breathing and movement coordination.
The limbic system's hippocampus, amygdala, and hypothalamus are responsible for memory, emotion, and regulating body temperature and fluids.
The cerebral cortex's four lobes - frontal, parietal, temporal, and occipital - control thinking, touch sensation, auditory processing, and visual information, respectively.
This document describes a final project studying the brain through a multi-sensory exercise for a soccer goalkeeper. The exercise tests the visual and vestibular systems by having the goalkeeper balance on an unstable board while quickly responding to stimuli appearing on both sides, without losing balance. It evaluates the integration of the visual, vestibular and proprioceptive systems as well as decoding abilities, balance, processing speed and cognitive flexibility. The course was effective at simply and clearly communicating complex topics and it was easy to understand thanks to the knowledge and communication skills of the instructor, Peggy Mason.
The document provides an overview of the major structures and functions of the human brain. It discusses the evolution of the brain from the reptilian to paleomammalian to neomammalian stages. It then describes the major parts of the brain including the cerebrum, brainstem, diencephalon, cerebellum, ventricles, meninges, and various lobes, areas, and structures within these regions. For each area, it highlights the key functions and neurological pathways.
The document discusses several key topics about the brain:
- The brain controls all functions of the body and is constantly working even at rest. It sits atop the brainstem which connects to the spinal cord and nerves throughout the body.
- The brain can be affected by diseases like cancer and tumors which can be caused by radiation from sources like cell phones.
- Optical illusions reveal that the eyes are controlled by the opposite sides of the brain, with the left eye controlled by the right brain and vice versa.
- Studies show that classical music can improve memory and IQ temporarily in infants and adults by stimulating the temporal lobe of the brain as it processes the sounds.
The document discusses the biological basis of behavior and the human brain. It covers several key points:
1. Heredity and evolution influence human physical and mental characteristics. The brain is programmed for language and social skills at birth.
2. The brain consists of three main layers - the hindbrain, midbrain, and forebrain. The hindbrain includes the medulla, cerebellum, and pons and controls vital functions like breathing.
3. The limbic system, which includes the amygdala and hippocampus, is responsible for emotions and forming memories. The amygdala handles emotional responses while the hippocampus aids memory formation.
The document describes the structure and functions of different parts of the human brain. It discusses the cerebrum, cerebral cortex, lobes of the brain including the frontal, parietal, occipital and temporal lobes. It identifies various cortical regions and describes their functions, such as the primary motor cortex, Broca's area, visual cortex, auditory cortex etc. It also describes sulci, fissures and gyri of the cerebral cortex.
The document discusses various brain structures involved in different daily activities like sleep, eating, brushing teeth, defecating, and watching TV. It notes that the hypothalamus and pituitary gland regulate sleep through hormones. When eating, the hypothalamus, amygdala, orbitofrontal cortex and caudate are involved - the amygdala processes emotions related to food. Brushing teeth and defecating involve memory, sensory-motor skills and structures like the thalamus, limbic system and cerebellum. Watching TV requires the inferior colliculi for processing auditory stimuli. Understanding the nucleus accumbens and its role in reward and reinforcement could provide insights for addiction counseling.
The document discusses brain development in infants and young children. It notes that the brain develops rapidly in the first few years of life, with neurons forming connections and synapses proliferating. Early experiences play a crucial role in shaping brain development as connections are reinforced or pruned. The environment influences how the brain forms, with chronic stress or extreme deprivation potentially harming development. Proper stimulation and nurturing experiences are important for healthy brain growth.
The document discusses how brain-based learning has replaced behavioral psychology due to new technologies like MRI, EEG, and PET scans. It explains that learning forms connections in the brain through concrete experiences rather than just reading. It also outlines how the brain develops through overproduction and pruning of synapses during critical periods, and how risky behavior during adolescence can both help and hinder frontal cortex development.
The document provides information about the structure and functions of the human brain. It discusses the different parts of the brain including the cerebral cortex, limbic system, cerebellum, and brain stem. It describes the locations and roles of the frontal lobe, parietal lobe, occipital lobe, and temporal lobe within the cerebral cortex. The summary also mentions that the brain is made up of billions of neurons and gives humans abilities such as reasoning, feeling, and adapting.
5Physical Development
Novastock/Photolibrary/Getty Images
Learning Objectives
After completing this module, you should be able to:
ሁ Describe changes in body and brain structure from birth through adolescence.
ሁ Detail the process of nerve function and how neurons transmit signals.
ሁ Provide behavioral examples that demonstrate how the brain is organized.
ሁ Outline major milestones in motor development.
ሁ Clarify important issues related to toilet training.
ሁ Identify warning signs of various physical disabilities that may first appear in early childhood.
ሁ Describe physical changes that take place during puberty, including historical and cultural trends,
and the differential impact on males and females.
Section 5.1General Patterns of Growth
Prologue
Among infants and young children, tremendous changes occur in every domain of develop-
ment. However, none are more apparent than the physical changes. When new parents talk
about their baby’s growth, the first thing that usually comes to mind is height, weight, and
motor activity. Imaging devices now allow us to track coinciding changes in brain tissue. We
can conclusively differentiate between a male brain and a female brain—even at birth. Though
we are far from making predictions about physical development based on brain scans, we can
predict some effects of deprivation. For instance, malnutrition can have far-reaching conse-
quences, extending into physical, cognitive, and even psychosocial domains.
Quite unlike other animal species, human infants are virtually helpless at birth. Babies can
eat only if a nipple is provided; they cannot move objects out of the way or closer; and for the
most part they cannot manipulate the physical structure of the environment. Initially they
do not even have the muscle strength needed to hold up their heads. It is only with adult
assistance that infants can survive and eventually optimize growth. Technology and scien-
tific advancement have allowed us to better understand how we transition from completely
dependent beings into adolescents who are perfectly capable of walking away from their par-
ents. This module focuses on those physical developments.
5.1 General Patterns of Growth
Though parents do not often notice, the heads of infants are disproportionately large com-
pared to the rest of their bodies. On their way to adult proportions, the torso and limbs grow
faster than the head. This pattern of growth is an example of directionality, one of the gen-
eral principles of human growth. In this case, the direction is
cephalocaudal, literally meaning “head to tail.” At birth not
only is the head more developed physically than the rest of
the body, but also vision and hearing precede growth of the
limbs. That is, babies begin to focus their eyes on what they
hear well before they begin walking or perform coordinated
hand movements.
Physical growth also occurs in a proximodistal pattern—
from the inside out. In the prenat ...
This document provides a summary of key information about brain development in young children. It discusses the importance of meeting children's basic needs for safety, love, and modeling in order to support healthy development of the brain. Specific recommendations are provided to support development in four key areas: nutrition, movement/senses, seeing/remembering/imagining, and listening/talking. Meeting children's needs and providing stimulating experiences is essential for building strong brain connections early in life.
The document discusses how the brain works and its structure. It explains that the brain is made up of three main parts - the forebrain, midbrain and hindbrain. The largest part is the cerebrum, which controls thought and action. It is divided into two hemispheres and four lobes (frontal, parietal, occipital, temporal) which are responsible for different functions like memory, language processing and sensory information. Meditation can have psychological and physiological benefits by disengaging self-consciousness and freeing the mind from attachments. Understanding how meditation affects the brain provides insights into consciousness and human behavior.
The document discusses how neurotransmitters, exercise, sleep, nutrition, and technology impact learning and brain development. It explains that neurotransmitters like acetylcholine, serotonin, and dopamine allow neural communication and influence memory, cognition, and movement. Exercise increases blood flow and the release of proteins that stimulate neural growth. Adequate sleep is needed to consolidate memories from short-term to long-term storage. Certain nutrients support healthy brain cell growth, while moderate technology use that balances screen time with other activities is best for young learners.
The document discusses the brain and how neuroscience technology has helped researchers understand its inner workings. It describes various brain imaging technologies like MRI, PET scans, and EEG that have enabled seeing inside the brain. It also summarizes some key areas of the brain like the left and right hemispheres, lobes, neurons, and regions involved in functions like memory, language processing, and the five senses.
The brain displays remarkable plasticity throughout life, especially during early childhood. Early experiences shape the formation of neural connections, known as synaptogenesis, which peaks between birth and age 3 as the brain rapidly develops trillions of synapses. During this critical period, enriched environments lead to greater neural connectivity, while insufficient stimulation results in pruning of underused synapses. Later in childhood and through adulthood, plasticity enables the brain to learn, form new memories, and rewire itself in response to injury.
Please answer a total of 3 questions for this assignment. Select.docxneedhamserena
Please answer a total of 3 questions for this assignment. Select a question to answer for each of the sections below (Movement, Cycles and Rhythm, Visual System and Auditory System).
1.
Movement, Cycles and Rhythms
The control of movement is often divided into mechanisms of reflexes and of voluntary movement.
What is a reflex? It is a stereotyped, automatic movement evoked by a specific stimulus. It is uniform across members of a species. Some examples in humans are the patellar or kneejerk reflex, the salivary reflex, the orienting reflex, and the pupillary reflex.
In reviewing the reflex arc, pay special attention to proprioception, muscle spindles, the stretch reflex, and primary motor cortex. (Prof. Suzuki also discusses the basal ganglia and the cerebellum, but in another lecture that I have not assigned.)
Further, let's think about the cycles in our behavior. They are ancient and varied. We certainly inherited them from species that evolved earlier than we did.
We harbor a number of rhythms. Generally, we have cellular cycles that augment the day-night rhythm to regulate our behavioral cycles. There are possibly very long cycles that govern our evolution. Men and women both run on cycles, though with differences. But do our cycles still make biological sense?
Questions
(
answer one only
)
1) Can you point to any movements that do not involve reflexes--or some reflexes that do not involve movement?
2) Sleep is tied to recovery of normal function and memory formation. Why does it make sense, then, to stop for sleep just because the sun sets? Why not sleep just whenever we have a backlog of memories to form or we're under stress or sick? Does the wide variation in our daily experience require such an extreme regularity of sleep regulation? Since we don't learn or exercise the same amount each day, why do we nevertheless sleep the same amount? A number of possible answers are given in the first 10 minutes of this fascinating podcast but offer your own insights as well.
3) Furthermore, women show more pronounced cycles in sex hormones than men do, including menstrual cycles and a rather imprecise biological clock with a different origin. Is this an evolutionary leftover, no longer necessary or helpful for humans? Would you want the equivalent of a birth control pill for all of our cycles?
2.
Visual System
It’s easy to get swamped in detail about the visual system. (This animation may help.)
Videos 10 and 11 discuss the visual pathways that originate in the retina and “ascend” to the visual cortex via the thalamus.
In this week’s resources the retina is revealed as more than a screen for images. Light falls on different classes of photoreceptors, rods and cones, which organize light stimulation according to their pigments by intensity and wavelength. From the duplex nature of the retina there arises a tradeoff between greater acuity in the center and greater sensitivity in the periphery. The output of the retina ...
Infancy Physical Development Chapter 4 and 5Infan.docxjaggernaoma
Infancy: Physical Development
Chapter 4 and 5
Infant development progresses rapidly. Infants usually come into this world equipped to begin the journey of life!
1
Principles of Development
Cephalocaudal
Proximodistal
Cephalocaudal – refers to development as progressing from head to toe. Consider muscle development babies begin by being able to lift their head and then it progresses to ultimate control of muscles which would be walking.
Proximodistal refers to center out. Again consider the last area one gains control is the fingers.
2
Skeletal Growth
Skeletal Age
Epiphyses
Fontanels
The best estimate of a child’s physical maturity is skeletal age, which is a measure of development of the bones of the body.
Epiphyses are growth centers, that appear at the ends of the long end of the bones of the body. Cartilage cells continue to be produces at the growth plates of these epiphyses, which increase in number throughout childhood and then as growth continues, get thinner and disappear.
Skull growth is especially rapid between birth and 2 years of age due to large increases in brain size. At birth the bones of the skull are separated by gaps called fontanels. These gaps help during the birth process and also allow for brain development. There are 6 of these – the largest is the anterior gap. It will gradually shrink and fill in during the second year. The other fontanels are smaller and close more quickly. As the skull bones come in contact with one another, they form sutures or seams, these permit the skull to expand easily as the brain grows. The sutures will disappear when skull growth is complete, during the teen years.
3
Brain Development
Synaptic Pruning
Myelination
Cerebral Cortex
Prefrontal cortex
Hemispheres
Lateralization
Brain plasticity
At birth the brain is nearer to its adult size than any other physical structure.
Human brain has 100 to 200 billion neurons or nerve cells that store and transmit information. Between nuerons are tiny gaps or synapses, where fibers from different neurons come close together but do not touch. Neurons send messages to one another by releasing chemicals call neurotransmitters which cross the synapse. During infancy and toddlerhood, neural fibers and synapses increase dramatically. Because developing neurons require space for connective structures, as synapses form surrounding neurons will die. As neurons form connections, stimulation becomes vital for their survival. Neurons that are stimulated by input from the surrounding environment continue to establish new synapses, forming increasingly elaborate systems of communication that support more complex abilities. Neurons that are seldom stimulated soon lose their synapses, through synaptic pruning, which returns neurons not needed at the moment to an uncommitted state so they can support future development.
About half of the brain is made up of glial cells which are responsible for myelination, the coating of.
Here are the key functions of the structures in abnormal psychology based on the information provided:
Amygdala: Responsible for how one perceives emotions like anger, fear, and sadness. Also controls emotions like aggression. Helps store memories of events and emotions.
Hypothalamus: Regulates basic bodily functions like hunger, thirst, sleep, temperature, and heart rate. Releases hormones that control these functions.
Thalamus: Sorts and distributes sensory data to different areas of the cortex. Sorts information as visual, tactile, auditory, or gustatory and sends it to the appropriate cortical region for processing. Sends visual information to the occipital lobe.
The brain undergoes significant development and changes throughout life. In early childhood, the brain rapidly forms new connections, with trillions of synapses forming by age 3. During childhood, synaptic pruning occurs, removing unused connections. Experience and environment influence which connections are strengthened and retained. Early childhood experiences are particularly important for brain development. Brain plasticity allows the brain to adapt and recover from injury through mechanisms like remapping of functions. Early intervention programs provide therapeutic support and aim to maximize development for children with disabilities or delays.
DMIT Studio is an initiative towards enhancing the learning and education processes with the sole objective of bringing a meaningful transformation to every human life by exploring the true potential of their brain. The company is a prominent player in the arena and has gathered an undisputed reputation over the years by helping people to enhance their inherent talents holistically.
Some experts feel that your baby already has his work cut out, growing and developing inside you. There's no evidence that exposing your baby to classical music, poetry or intellectual conversation will make him more intelligent or help him to develop highbrow tastes.
The ultimate aim of our online Divine Spiritual Pregnancy Live classes is to give birth to a well cultured, virtuous, majestic, vigorous, healthy, beautiful and extremely intelligent child. Although many couples are capable of bearing child but mere giving birth to a child should not be the only aim. The child has to be unique, unrivalled, noble, extremely talented and enriched with all the good human qualities.
The document summarizes key aspects of neuroplasticity in children. It discusses how the brain develops in an orderly sequence from neurogenesis to synaptogenesis. Critical periods of plasticity allow maximum effects of experiences. The Hebb rule and long term potentiation explain how neurons that fire together wire together through strengthening of synapses. Experience alters gene expression, neurotrophin release, and neurotransmitters to influence development. While plasticity is highest in early life, the brain remains plastic throughout life. Adaptive and impaired plasticity, as well as excessive plasticity that causes vulnerability, are types of plasticity in children.
The document discusses infant brain development from birth through early childhood. It notes that neurons develop rapidly before birth and connections between neurons multiply greatly in the first few months of life. Early experiences physically determine how the brain is wired, as connections are strengthened through repetition and pruned if not used. The brain is most plastic and able to learn during the first three years. Deprivation can negatively impact brain development, while sensory stimulation, secure attachments, and adequate sleep support healthy development.
This document discusses love from neurological and psychological perspectives. It defines key terms like emotions and feelings. It summarizes research showing there are three stages of love: sexual love driven by hormones, attraction stage involving neurotransmitters like dopamine and serotonin, and attachment stage involving oxytocin and vasopressin. The document outlines brain regions involved in each stage and compares male and female brain responses. It discusses factors that influence falling in love and references several scholarly sources on the topic.
There is evidence from numerous studies that mood disorders such as bipolar disorder are disproportionately represented in creative professions like writing and art. While not all creative people have mood disorders, and not all people with bipolar disorder are creative, research supports an association between the two. Bipolar disorder involves cycles of depression and mania that are characterized by distinct symptoms. Some theories suggest that certain phases of bipolar disorder, like hypomania, can facilitate creativity by enhancing ideas and energies, while depression allows for focus and editing. Neurotransmitters like dopamine and norepinephrine also appear to play a role in both bipolar symptoms and the cognitive processes involved in creativity.
- When drugs are abused, they activate the same brain circuits linked to survival functions like eating, bonding, and sex. This causes dopamine levels to change, resulting in feelings of pleasure that later turn into a need for survival.
- Addiction affects the brain by changing how people think and making it harder to quit cold turkey. All major drugs of abuse impact the mesolimbic pathway in the brain, altering decision making and controlling desires.
- Long term drug and alcohol abuse damages brain regions involving learning, memory, reasoning and decision making. This leads addicted individuals to compulsively pursue drugs even when they no longer provide reward or pleasure.
The document summarizes research on the neurobiology of love. It describes studies that used fMRIs to scan the brains of individuals who were intensely in love. The studies found that two areas were particularly active - the caudate nucleus and the ventral tegmental area. The caudate nucleus is involved in reward and motivation, while the VTA produces dopamine. Oxytocin was also identified as playing a key role in the bonding effects of love.
While there are some anatomical differences between male and female brains, the differences are small and brains are more alike than different. The hypothalamus, frontal lobe, limbic system, and parietal cortex show some minor structural variations between sexes. However, brain differences exist on spectrums within each gender, and are influenced by both nature and nurture. It is best to understand individuals and teach to each person's unique brain rather than make assumptions based on gender.
There are two types of stress: eustress, which is positive stress that opens the "gate" to higher thinking in the cortex, and distress, which is negative stress that closes this gate. Distress activates the amygdala's alarm response and shifts focus to the survival brain, interfering with thinking and learning. Prolonged distress in childhood can impair intellectual development by disrupting working memory in the prefrontal cortex. The degree of perceived control over threats determines if emotional reactions bypass rational thinking.
Neurotransmitters are chemical messengers that transmit electrical signals between neurons. They are stored in sacs called vesicles and released into the synaptic gap when an electrical signal reaches the neuron. Each neurotransmitter has a unique shape that acts as a key to receptors on the receiving neuron, either exciting or inhibiting transmission. When their job is done, neurotransmitters are broken down or recycled. There are over 60 known neurotransmitters that have specialized functions and impact mood, behavior, learning, and more.
The document discusses the left and right hemispheres of the brain. Each hemisphere specializes in different types of processing, with the left hemisphere being more analytical and language-oriented while the right hemisphere is more intuitive and focused on sensory experiences. The hemispheres communicate across the brain via the corpus callosum, and people can have tendencies toward left or right brain dominance in their cognitive styles.
The document summarizes the different layers of the brain from the brain stem up. It discusses how each layer develops and its main functions. The brain stem and midbrain develop first and are responsible for automatic functions like breathing and heart rate. The cerebellum develops next and controls movement coordination. The limbic system processes emotions. The cortex, which develops last, is responsible for higher level thinking. The cortex is divided into specialized lobes with different functions.
The document summarizes the different layers of the brain from the brain stem up. It discusses how each layer develops and its main functions. The brain stem and midbrain develop first and are responsible for automatic functions like breathing and heart rate. The limbic system processes emotions. The cortex, which develops last, is responsible for higher level thinking, decision making, creativity, and other uniquely human functions. Each layer builds upon the ones below it and they work together in a coordinated way.
Neurons are the basic building blocks of the nervous system and communicate with each other via electrical and chemical signals. They have dendrites that receive information, a cell body that contains genetic material, and an axon that sends information to other neurons. Neurons transmit signals through electrical impulses and the release of neurotransmitters across small gaps between neurons called synapses. Experiences and stimuli shape the development of neural pathways and connections in the brain throughout childhood and adolescence as the brain undergoes pruning and myelination.
The brain is made up of over 100 billion neurons that communicate through trillions of connections, more connections than there are stars in the galaxy. Studying the brain helps understand disabilities and gifts, and improves programs and policies for both children and adults by providing a better understanding of brain development.
This document outlines the format and structure of a classroom game show based on the TV show "Are You Smarter Than a 5th Grader?". It lists potential grade level topics from 1st to 5th grade with corresponding questions and answers. It also includes a "Million Dollar Question" at the end for 1 million points.
Osteoporosis - Definition , Evaluation and Management .pdfJim Jacob Roy
Osteoporosis is an increasing cause of morbidity among the elderly.
In this document , a brief outline of osteoporosis is given , including the risk factors of osteoporosis fractures , the indications for testing bone mineral density and the management of osteoporosis
Test bank for karp s cell and molecular biology 9th edition by gerald karp.pdfrightmanforbloodline
Test bank for karp s cell and molecular biology 9th edition by gerald karp.pdf
Test bank for karp s cell and molecular biology 9th edition by gerald karp.pdf
Test bank for karp s cell and molecular biology 9th edition by gerald karp.pdf
DECLARATION OF HELSINKI - History and principlesanaghabharat01
This SlideShare presentation provides a comprehensive overview of the Declaration of Helsinki, a foundational document outlining ethical guidelines for conducting medical research involving human subjects.
Promoting Wellbeing - Applied Social Psychology - Psychology SuperNotesPsychoTech Services
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
10 Benefits an EPCR Software should Bring to EMS Organizations Traumasoft LLC
The benefits of an ePCR solution should extend to the whole EMS organization, not just certain groups of people or certain departments. It should provide more than just a form for entering and a database for storing information. It should also include a workflow of how information is communicated, used and stored across the entire organization.
Cell Therapy Expansion and Challenges in Autoimmune DiseaseHealth Advances
There is increasing confidence that cell therapies will soon play a role in the treatment of autoimmune disorders, but the extent of this impact remains to be seen. Early readouts on autologous CAR-Ts in lupus are encouraging, but manufacturing and cost limitations are likely to restrict access to highly refractory patients. Allogeneic CAR-Ts have the potential to broaden access to earlier lines of treatment due to their inherent cost benefits, however they will need to demonstrate comparable or improved efficacy to established modalities.
In addition to infrastructure and capacity constraints, CAR-Ts face a very different risk-benefit dynamic in autoimmune compared to oncology, highlighting the need for tolerable therapies with low adverse event risk. CAR-NK and Treg-based therapies are also being developed in certain autoimmune disorders and may demonstrate favorable safety profiles. Several novel non-cell therapies such as bispecific antibodies, nanobodies, and RNAi drugs, may also offer future alternative competitive solutions with variable value propositions.
Widespread adoption of cell therapies will not only require strong efficacy and safety data, but also adapted pricing and access strategies. At oncology-based price points, CAR-Ts are unlikely to achieve broad market access in autoimmune disorders, with eligible patient populations that are potentially orders of magnitude greater than the number of currently addressable cancer patients. Developers have made strides towards reducing cell therapy COGS while improving manufacturing efficiency, but payors will inevitably restrict access until more sustainable pricing is achieved.
Despite these headwinds, industry leaders and investors remain confident that cell therapies are poised to address significant unmet need in patients suffering from autoimmune disorders. However, the extent of this impact on the treatment landscape remains to be seen, as the industry rapidly approaches an inflection point.
The skin is the largest organ and its health plays a vital role among the other sense organs. The skin concerns like acne breakout, psoriasis, or anything similar along the lines, finding a qualified and experienced dermatologist becomes paramount.
Summer is a time for fun in the sun, but the heat and humidity can also wreak havoc on your skin. From itchy rashes to unwanted pigmentation, several skin conditions become more prevalent during these warmer months.
8 Surprising Reasons To Meditate 40 Minutes A Day That Can Change Your Life.pptxHolistified Wellness
We’re talking about Vedic Meditation, a form of meditation that has been around for at least 5,000 years. Back then, the people who lived in the Indus Valley, now known as India and Pakistan, practised meditation as a fundamental part of daily life. This knowledge that has given us yoga and Ayurveda, was known as Veda, hence the name Vedic. And though there are some written records, the practice has been passed down verbally from generation to generation.
Are you looking for a long-lasting solution to your missing tooth?
Dental implants are the most common type of method for replacing the missing tooth. Unlike dentures or bridges, implants are surgically placed in the jawbone. In layman’s terms, a dental implant is similar to the natural root of the tooth. It offers a stable foundation for the artificial tooth giving it the look, feel, and function similar to the natural tooth.
CAT - Computed Tomography (CT) or Computed Axial Tomography (CAT) scanning uses a series of x-rays of the head taken from many different directions. Typically used for quickly viewing brain injuries, CT scanning uses a computer program that performs a numerical integral calculation (the inverse Radon transform) on the measured x-ray series to estimate how much of an x-ray beam is absorbed in a small volume of the brain. Typically the information is presented as cross sections of the brain.[1] In approximation, the denser a material is, the whiter a volume of it will appear on the scan (just as in the more familiar "flat" X-rays). CT scans are primarily used for evaluating swelling from tissue damage in the brain and in assessment of ventricle size. Modern CT scanning can provide reasonably good images in a matter of minutes. [edit]
(MRI) uses magnetic fields and radio waves to produce high quality two- or three-dimensional images of brain structures without use of ionizing radiation (X-rays) or radioactive tracers. During an MRI, a large cylindrical magnet creates a magnetic field around the head of the patient through which radio waves are sent. When the magnetic field is imposed, each point in space has a unique radio frequency at which the signal is received and transmitted (Preuss). Sensors read the frequencies and a computer uses the information to construct an image. The detection mechanisms are so precise that changes in structures over time can be detected. Using MRI, scientists can create images of both surface and subsurface structures with a high degree of anatomical detail. MRI scans can produce cross sectional images in any direction from top to bottom, side to side, or front to back. The problem with original MRI technology was that while it provides a detailed assessment of the physical appearance, water content, and many kinds of subtle derangements of structure of the brain (such as inflammation or bleeding), it fails to provide information about the metabolism of the brain (i.e. how actively it is functioning) at the time of imaging. A distinction is therefore made between "MRI imaging" and "functional MRI imaging" (fMRI), where MRI provides only structural information on the brain while fMRI yields both structural and functional data. DOESN”T USE XRAYS LIKE CT MRI technology is based on nuclear magnetic resonance in liquids and solids, first reported in 1946.
The ability to measure brain function (instead of the static anatomy imaged with traditional MRI) gives fMRI its name and is the key scientific reason for its growing popularity Magnetic Resonance Imaging (MRI) is a diagnostic imaging technology that uses a strong magnet and radiofrequency waves to produce high quality images of neuroanatomy and disease processes. In an fMRI examination, you will perform a particular task during the imaging process, causing increased metabolic activity in the area of the brain responsible for the task. This activity, which includes expanding blood vessels, chemical changes and the delivery of extra oxygen, can then be recorded on MRI images. The ability to measure brain function (instead of the static anatomy imaged with traditional MRI) gives fMRI its name and is the key scientific reason for its growing popularity, but more pragmatic factors are also important. Chief among these is the availability of more than 13,000 clinical MR scanners, primarily located in North America, Europe and Asia. Of the 3,700 scanners in the United States, 58% are of sufficiently high field strength (1.5 Tesla) to allow imaging of the changes in cerebral vasculature related to neural activity that are the physiological basis for fMRI. The previous state of the art in functional brain imaging, positron emission tomography (PET), offers spatial and temporal resolution that is an order of magnitude poorer than that of fMRI. In addition, there are relatively few PET scanners because of their limited clinical utility and the need for nearby cyclotrons to generate the short-lived injected radioactive tracers used to measure brain activity. Whereas technical, geographic and bureaucratic obstacles often prevented neuroscientists from testing their theories using PET, the wide availability of MR scanners has democratized imaging. Functional Magnetic Resonance Imaging (fMRI) relies on the paramagnetic properties of oxygenated and deoxygenated hemoglobin to see images of changing blood flow in the brain associated with neural activity. This allows images to be generated that reflect which brain structures are activated (and how) during performance of different tasks. Most fMRI scanners allow subjects to be presented with different visual images, sounds and touch stimuli, and to make different actions such as pressing a button or moving a joystick. Consequently, fMRI can be used to reveal brain structures and processes associated with perception, thought and action. The resolution of fMRI is about 2-3 millimeters at present, limited by the spatial spread of the hemodynamic response to neural activity. It has largely superseded PET for the study of brain activation patterns. PET, however, retains the significant advantage of being able to identify specific brain receptors (or transporters) associated with particular neurotransmitters through its ability to image radiolabelled receptor "ligands" (receptor ligands are any chemicals that stick to receptors). As well as research on healthy subjects, fMRI is increasingly used for the medical diagnosis of disease. Because fMRI is exquisitely sensitive to blood flow, it is extremely sensitive to early changes in the brain resulting from ischemia (abnormally low blood flow), such as the changes which follow stroke. Early diagnosis of certain types of stroke is increasingly important in neurology, since substances which dissolve blood clots may be used in the first few hours after certain types of stroke occur, but are dangerous to use afterwards. Brain changes seen on fMRI may help to make the decision to treat with these agents. With between 72% and 90% accuracy where chance would achieve 0.8%,[2] fMRI techniques can decide which of a set of known images the subject is viewing.[3] [edit]
Unlike X-rays and traditional MRI, PET does not produce a picture of the "structure" or anatomy of the brain, but rather it gives an image of brain "function" or physiology. In other words, it can be used to image what the brain is doing. rr Cancer uses glucose at a higher rate and that is how they can use this to check for cancer. Positron Emission Tomography (PET) measures emissions from radioactively labeled metabolically active chemicals that have been injected into the bloodstream. The emission data are computer-processed to produce 2- or 3-dimensional images of the distribution of the chemicals throughout the brain (Nilsson 57). The positron emitting radioisotopes used are produced by a cyclotron, and chemicals are labelled with these radioactive atoms. The labeled compound, called a radiotracer, is injected into the bloodstream and eventually makes its way to the brain. Sensors in the PET scanner detect the radioactivity as the compound accumulates in various regions of the brain. A computer uses the data gathered by the sensors to create multicolored 2- or 3-dimensional images that show where the compound acts in the brain. Especially useful are a wide array of ligands used to map different aspects of neurotransmitter activity, with by far the most commonly used PET tracer being a labeled form of glucose (see FDG). The greatest benefit of PET scanning is that different compounds can show blood flow and oxygen and glucose metabolism in the tissues of the working brain. These measurements reflect the amount of brain activity in the various regions of the brain and allow us to learn more about how the brain works. PET scans were superior to all other metabolic imaging methods in terms of resolution and speed of completion (as little as 30 seconds), when they first became available. The improved resolution permitted better study to be made as to the area of the brain activated by a particular task. The biggest drawback of PET scanning is that because the radioactivity decays rapidly, it is limited to monitoring short tasks (Nilsson 60). Before fMRI technology came online, PET scanning was the preferred method of functional (as opposed to structural) brain imaging, and it still continues to make large contributions to neuroscience. PET scanning is also used for diagnosis of brain disease, most notably because brain tumors, strokes, and neuron-damaging diseases which cause dementia (such as Alzheimer's disease) all cause great changes in brain metabolism, which in turn causes easily detectable changes in PET scans. PET is probably most useful in early cases of certain dementias (with classic examples being Alzheimer's disease and Pick's disease) where the early damage is too diffuse and makes too little difference in brain volume and gross structure to change CT and standard MRI images enough to be able to reliably differentiate it from the "normal" range of cortical atrophy which occurs with aging (in many but not all) persons, and which does not cause clinical dementia. [edit]
SPECT looks at blood flow and activity patterns. SPECT is different than CAT scans and MRIs, those are anatomy scans. They show what the brain actually, physically looks like. SPECT looks at how the brain functions. SPECT stands for single photon emission computed tomography. It is a nuclear medicine study that uses radioisotopes as tracking devices to look at living brain tissue. The radiation exposure from one SPECT study is 1/3th the level of radiation from an abdominal CAT scans, a very common procedure in medicine. SPECT gives a three dimensional view of brain activity. Basically, SPECT measures three things: * areas of the brain that work well, * areas of the brain that are low in activity and * areas of the brain that are high in activity. Single Photon Emission Computed Tomography (SPECT) is similar to PET and uses gamma ray emitting radioisotopes and a gamma camera to record data that a computer uses to construct two- or three-dimensional images of active brain regions (Ball). SPECT relies on an injection of radioactive tracer, which is rapidly taken up by the brain but does not redistribute. Uptake of SPECT agent is nearly 100% complete within 30 – 60s, reflecting cerebral blood flow (CBF) at the time of injection. These properties of SPECT make it particularly well suited for epilepsy imaging, which is usually made difficult by problems with patient movement and variable seizure types. SPECT provides a "snapshot" of cerebral blood flow since scans can be acquired after seizure termination (so long as the radioactive tracer was injected at the time of the seizure). A significant limitation of SPECT is its poor resolution (about 1 cm) compared to that of MRI. Like PET, SPECT also can be used to differentiate different kinds of disease process which produce dementia, and it is increasingly used for this purpose. Neuro-PET has a disadvantage of requiring use of a tracers with half-lives of at most 110 minutes, such as FDG. These must be made in a cyclotron, and are expensive or even unavailable if necessary transport times are prolonged more than a few half-lives. SPECT, however, is able to make use of tracers with much longer half-lives, such as technetium-99m, and as a result, is far more widely available. Picture: Spect scans of the author's brain taken at Amen Clinic in Newport Beach, California. In the four surface views on the right, the less active regions of the brain show up as holes or dents. The scans on the left show the most active 15 percent of the brain in red and white. Photo: Daniel Amen
In the first image, the highest activity is in the sensorimotor cortex, in the second image in the amygdala (top arrow) and brainstem (bottom arrow), and in the third image in the hippocampus (top arrow) and cerebellar vermis (lower arrow). At one month a good deal of the infant brain’s activity is in the area of the brain stem and occipital lobes By 8 months, most parts of the brain are active. It is especially interesting to not that the prefrontal lobe (which is the imagining, planning and rehearsal part of the brain, is quite active. The area is also involved in connecting to the limbic system to development he volume control to regulate emotions. These types of scans are demonstrating that all of this brain development is occurring much earlier than we first thought.
Constructed from MRI scans of healthy children and teens, the time-lapse "movie", from which the above images were extracted, compresses 15 years of brain development (ages 5 - 20) into just a few seconds. Red indicates more gray matter, blue less gray matter. Gray matter wanes in a back-to-front wave as the brain matures and neural connections are pruned. Areas performing more basic functions mature earlier; areas for higher order functions mature later. The prefrontal cortex, which handles reasoning and other "executive" functions, emerged late in evolution and is among the last to mature. Studies in twins are showing that development of such late-maturing areas is less influenced by heredity than areas that mature earlier. (Source: Paul Thompson, Ph.D., UCLA Laboratory of Neuroimaging)
“ while we are perceiving a unified scene, the brain is dissecting the view into many parts, each of which triggers a different set of neurons called a visual map. One map responds to color and form, another only to motion. There are at least five such maps in the visual system alone, and recent work is showing that other senses are similarly encoded in the brain” New research shows that everyone sees a different palette. The ability to see color begins with cells in the back of the eyeball called cones. Two red cone subtypes have been found. People with one type see red differently from those with the second. That’s why people argue about adjusting the color on the RV set.” US New and World Report
Implications for application: Regular eye exams, starting as early as two weeks of age are advised. Surgeons now remove congenital cataracts as early in infancy as possible. If they wait until children are older the neural connections between the eyes and the brain will fail to develop and they’ll never be able to see - two years old is too late. There is no need to buy high-contrast black and white toys to stimulate vision. Do visual activity on video brain sees what it looks for.
The act of being touched increases production of a specific hormone within the brain, Nerve Growth Factor (NGF), which activates greater nervous system development. (smart moves pg 39, 40)
If these nerve endings are not activated it can lead to impaired muscular movements, curtailed sensory intake, and a variety of emotional disturbances and learning defects Implications for application children need positive touch as much as they need vitamins - they need a steady diet of being hugged, stroked, held and snuggled. For children who are sensitive to touch refer to the work of Jean Ayers She discovered a link between touch sensitivity (inability to tolerate touch) and learning disorders in children. Her highly successful program for learning disorders deals with waking up the sensory system by appropriately activating all the touch receptors. She uses touch, pressure, fine brushes and ball rolled across the skin surface, especially on the arms, legs and back, all integrated with movement” Sensory defensive or sensory integration
This original Artwork was done by a SPD parent, Melissa Zacherl. Copyright 2004 by Melissa Zacherl. Used by permission.
Infants - University of Miami study on preemies massaged 15 minutes 3 X a day compared to regular nursery treatment gained weight 47% faster than control group processed food more efficiently, more alert and aware of surroundings and sleep deeper and more resortative Lowered stress hormone levels; cried less and showed greater improvement in measure of emotionality, sociability and soothability Rocking did not do much for the babies Adults Office workers who received a 15 minute massage began emitting higher levels of brain waves associated with alertness. After their massage, the workers executed a math test in 1/2 their previous time with 1/2 the errors Give self a massage
It takes up to two years for cells in the cerebellum, which controls posture and movement, to form functional systems Motor development happens gradually from large, global movements to the fine muscle control.
Map of sensory and motor cortex
Implications for Application It is essential to the learning process to allow children to explore every aspect of movement and balance in their environment, whether walking on a curb, climbing a tree, or jumping on furniture Physical exercise is needed to stimulate the growth of developing brains and prevent the deterioration of older brains In a study of more than 500 Canadian children, students who spent an extra hour each day in gym class performed notably better on exams than less active children. Similarly, men and women in their 50’s and 60’s put on a four month aerobic training program of regular brisk walking increased their performance on mental tests
Limit the use of baby carrying seats As a baby’s repertoire of movements grows, each development places the sensory apparatus, especially the ears, mouth, hands, nose and eyes in an increasingly advantageous place for environmental input The vestibular system is tied to the core muscles of the abdomen and back and it is these muscles that first work to lift the head. As neck muscles strengthen, the child is able to lift the head to hear the world with two ears and start to see it with two eyes. Being held upright on the mother’s back or front, as well as lying on the ground, allows the baby to actively work and strengthen its neck muscles. Baby seats keep baby at 45 degree angle that inhibits active muscular movements either of the neck or core muscles. Even though the baby’s eyes are forward, because movement is inhibited the baby is not as actively developing vision Encourage crawling and other cross lateral movements; discourage baby walkers We have know for years that children who miss the vitally important crawling stage may exhibit learning difficulties later on (although many of these kids find other ways to crawl in play later) Cross lateral movements, like a baby’s crawling activate both hemispheres in a balanced way. These activities work both sides of the body evolve and involve coordinated movements of both eyes, both ears, both hands and feet are being used equally, the corpus collosum orchestrating these processes between the two hemispheres becomes more fully developed. Because both hemispheres and all four lobes are activated, cognitive function is heightened and ease of learning increases Do cross lateral marching
There is an enormous activity going on in infant and toddler brains as language is learned Hearing processed in temporal lobe Seeing - occipital Speaking - temporal and motor area of frontal Planning what to ay and generating works - prefrontal
The window of opportunity for language is in-utero to 10 years attempts to communicate through gestures sounds and eventually words are some of the prominent milestones for the child’s first two years of life.
The sound of words builds up neural circuitry that then can absorb more words One study found that when mothers frequently spoke to their infants, their children learned almost 300 more words by age two than did their peers whose mothers rarely spoke to them Study suggested that mere exposure to language such as listening to the television or to adults talking amongst themselves provided little benefit. Rather infants need to interact directly with other human beings to hear people talk to them about what they are seeing and experiencing in order for their brains to develop optimal language skills
What is not happening in the brain.
You tube 1: 4 year old American, whose first language is English, singing a Mandarin song. You Tube 2: The readers are born in the USa and English is their primary language but they aren't too bad at reading and speaking Mandarin Chinese either!
Brain expert Dr. Patricia Kuhl, co-director of the Institute for Learning and Brain Sciences at the University of Washington, talks about the innate learning ability of infants and children. Internationally recognized for her research on early language and brain development, Dr. Kuhl focuses on language and social interaction in the learning process. 38:20-45:00 maderine chinese experiment 53:16-56:34 hearing and seeing language experiement Implications If a child is hearing impaired the normal progression of language development is sidetracked It is crucial to test for hearing early in a child's life Treat ear infections promptly Talk to a child a lot Don’t be embarrassed to talk parentese to children Exaggerated the way you pronounce words and spoke brightly, about an octave higher in pitch than in usual adult speech. High pitch got babies attention. After hearing and watching mothers form hyper articulated vowel sounds, babies learned how to form similar vowel sounds by the time they were about 20 weeks. Read aloud to young children regularly Young children learn through repetition; repeat favorite stories, poems and phrase's If you want them to master a 2nd language introduce by age 10 Sign language has been shown to improve language skills
Few concert-level performers begin playing later than 10 Like other circuits formed early in life, the ones for music endure, much like the “muscle memory” for riding a bicycle” Learn to play a guitar as a child and pick it up years later and your fingers will still remember how to play. You tube; 1. 4yo music prodigy Shuan Hern Lee Plays Waltz by Beethoven. Dad Yoon Sen Lee has been teaching him since he was 2 & half yo. He plays violin as well 2. Ehan on Jay Leno start on 4:45 for music. Him talking about starting out and cancerts 2:04
76-Year-Old in the Band (reprinted with permission of The Associated Press) Eugene, Ore. Through the blare of rowdy kids tuning their instruments, the 76-year-old man with regal white hair, a black cane, and a tarnished French horn slowly makes his way to his seat in the brass section. Retired pipe fitter John Suta is in his third year with the Roosevelt Middle School band. The eight-graders he plays with no longer see him as an oddity, but as an inspiration who plays with a passion for music and thick fingers gnarled by a lifetime of hard work. "He is exactly like a middle school band player, even though he is older," said 13-year-old Anna Richardson. "Without music I would just as soon be dead," Suta said, summing up a philosophy that through the years has led him to take up opera, the piano, and the harmonica. And it was what drove him to walk into the middle school's beginning band class and ask for a chance to learn how to play a horn he had always loved. Without hesitating, the teacher told him, "Take a seat." Since then, Suta has advanced from "Mary Had a Little Lamb" to Beethoven, from sixth-grade to eighth-grade band. Josh Mack took over leadership of the band program this year and inherited Suta. "I just knew he had to be there," Mack said. Suta's love for music goes back to his childhood in Aurora, Ill., when his mother would sing songs in her native Hungarian. He grew up studying singin with an accompanist for the Chicago Opera and speaking German, Hungarian, Romanian, and Italian in his immigrant neighborhood. After World War II, he studied to become an opera singer, but soon discovered his love for music wasn't enough to pay the bills, so he raised two sons on a pipe fitter's wages. But music never left Suta's life. After he retired, he teamed with a friend on piano and sang at weddings, picnics, and senior centers. And on his own he even sang the national anthem at a few University of Oregon basketball games. Through the years, he always remembered the days when his brother and a friend would go house to house at Christmas, playing carols on a violin and French horn. Those memories came flooding back four years ago when he spotted an old French horn in a Salvation Army store. "I had that horn in my ear," Suta said. "I saw the tag. It said 85 bucks. I said to the lady, 'What's your best price? I don't have 85 bucks in my budget. Will you go for $75?' She said, 'Yes.'" He tried a few adult classes to learn the instrument but they were all too advanced. That's what led him to Roosevelt. Despite heart trouble and nerve damage in his legs that make it difficult to walk, Suta rarely misses practice and is at every concert. The young horn players look to him for guidance and, in turn, they help him. About a year ago, he stumbled in the small cluttered house where he lives alone, falling on his French horn and crushing the bell. He dropped the instrument off at a local music store, not knowing how he would afford to pay for the repairs. When Suta returned to the store the next day, the horn was fixed--the Roosevelt Middle School band members had pitched in to pay for the work. "It almost knocked me over," Suta said, crying. "You hear about all the things youngsters do, all this and that. But you don't hear [enough about] the beauty of children." Study at University of California-Irvine: A specific types of music training can enhance certain intellectual skills. The study took seventy-eight three and four year olds form working -class families and divided them into four groups. One group had six months of private piano lessons, another got computer lessons, a third got singing lessons and the fourth no training. Unlike the kids who learned piano, those given singing lessons were taught little about musical concepts. By the end of the study, the piano students scored 34% higher than the others on a test of spatial-temporal reasoning as shown in their ability to work mazes, draw geometric figures and copy patterns of two-color blocks. They suspect that this is also strengheens circuits used for mathematical reasoning. 4/97 .
Mozart was composing at age 3, he wrote down whole compositions without changing a note! Francis Rauscher and Gordon Shaw at the U of CA Irvine have done numerous studies on the Mozart Effect Their studies have found that ADULTS listening to Mozart can improve spatial-temporal reasoning. Although the effect is short term, the team concluded that the relationship between music and spatial reasoning was so strong that simply listening to music can make a difference. Mozart’s music may warm up the brain suggested Shaw. We suspect that complex music facilitates certain complex neuronal patterns involved in high brain activities like math and chess 2. Alfred Tomatis, MD a French physician famous for his wrok on sound, found that tapes of Mozart played for premature babies (with the low frequency sounds filtered out) has a positive effect on their pulse rate and breathing. Campbell.pg. 22
Adapted from "Music of the Hemispheres," by Mark Jude Tramo; Science, Jan. 2001 | By Patterson Clark, The Washington Post; U.S. Senate And Library Of Congress Photos - January 22, 2007 Enlisting the Whole Brain Different aspects of music activate different regions and can act as a key to unlock memory Point: The College Board, sponsor of the SAT tests, reports that students who’ve studied music score higher than average on both the verbal and math parts of the test. “on some level language and music lay claim to separate domains, but there are apparently shared cerebral circuits as well. Language and music are both forms of communication that rely on highly organized variations in sound pitches, stress and rhythm”
He may have won top regional and state science-fair honors, but probably at least some of his friends aren't talking to him. Sixteen-year-old David Merrill, a student at Nansemond River High School in Suffolk, Va., thought that the loud sounds of hard-rock music must have a bad effect on its devoted fans and came up with a way to test that damage. Merrill got 72 mice and divided them into three groups: one to test a mouse's response to hard rock, another to the music of Mozart and a control group that wouldn't listen to any music at all, rock or classical. The young vivisectionist got all the mice accustomed to living in aquariums in his basement, then started playing music 10 hours a day. Merrill put each mouse through a maze three times a week that originally had taken the mice an average of 10 minutes to complete. Over time, the 24 control-group mice managed to cut about 5 minutes from their maze-completion time. The Mozart-listening mice cut their time back 8-and-a-half minutes. But the hard-rock mice added 20 minutes to their time, making their average maze-running time 300 percent more than their original average. Need we say more? Well maybe we do. Merrill told the Associated Press that he'd attempted the experiment the year before, allowing mice in the different groups to live together. "I had to cut my project short because all the hard-rock mice killed each other," Merrill said. "None of the classical mice did that." Music | Mice and Music Experiment Washington Times, 29 July 97, page C3
No evidence that just listening to music will make kids smarter Do sing songs to and with children If a child shows any musical aptitude or interest get an instrument into her hands early Play structured, melodic music music with a 60 second beat per minute induces alpha waves - relaxed alertness (Paccelbel’s Cannon in D Do mice succumb to Mozart? March 25, 2006 Special to World Science The idea is at least as controversial today as it was when an attention-grabbing 1993 study suggested it: listening to Mozart makes you smarter, at least temporarily. Some researchers say the notion is outright debunked by now, though that hasn’t shut down a booming industry in Mozart CDs marketed as brain-boosters. Into this mess, a set of even more startling findings has crashed through the door. Few if any people would claim rodents appreciate classical music, yet studies from three laboratories have found this much: Mozart does something for them. The research found that a Mozart sonata improves maze performance in rats and mice. Some findings also pointed to accompanying biochemical changes. The studies have given a confidence boost to longtime proponents of the so-called “Mozart effect,” who say the agreement of three “independent” studies starts to approach something that could be called rock-solid evidence. But with skeptics continuing to dispute the results, the only certainty is that the debate isn’t over. Doubters point out that among other problems, rats and mice can’t even hear much of Mozart’s music. The pitches are too low for them. “It’s important to approach these studies with a critical eye and not be dazzled by the big claims being made,” wrote Harvard University’s Christopher Chabris in an email. The 1993 study with humans reported that listening to 10 minutes of Mozart boosted college students’ “spatial reasoning” abilities on tests for the next 10 to 15 minutes. Attempts to replicate the finding gave mixed results. Chabris analyzed 16 studies and in 1999 concluded there was no “Mozart effect,” except possibly an improvement on one test involving ability to transform visual images, with even that result falling short of statistical significance. Chabris attributed any effect to “enjoyment arousal” in his analysis, published in the Aug. 26, 1999 issue of Nature, the same research journal that published the original finding. His work led to responses and counter-responses, along with contentions that the “Mozart effect” might last longer than originally reported. As the debate raged, seeds of an even stranger finding had begun to sprout. In the July 1998 issue of the journal Neurological Research, Frances Rauscher of the University of Wisconsin, Oshkosh, and colleagues reported a study in which rats were exposed to Mozart while in the womb and for 60 days after birth. The rats completed a maze faster and with fewer errors than rats exposed instead to simpler music, silence, or a static-like noise, according to Rauscher, who had led the original study in humans. Chabris and others disputed that report, too. But two more studies with similar results have appeared in scientific journals in recent months: one in the December 2005 Neurological Research and the other in the latest issue of Behavioral Brain Research, dated May 15. Both were designed to replicate Rauscher’s findings, with some key differences. The first omitted the in-uterus music exposure. The second studied mice instead of rats. Both found that the Mozart-exposed rodents made fewer errors on mazes than others, though only the first study found that they also completed the mazes faster. “ Continuous exposure to music during the perinatal [before-and-after birth] period enhances learning performance in mice as adults,” concluded the authors of the second, Sachiko Chikahisa and colleagues at Tokushima University in Tokushima, Japan. They found the improvement was associated in increased levels of a molecule associated with “neural plasticity”—a sort of flexibility in brain circuit wiring, believed to facilitate learning. The molecule, a protein, is called TrkB. Thus, “at this time I would say there are two independent replications of my original” finding, wrote Rauscher in an email. But Kenneth M. Steele of Appalachian State University in Boone, N.C., a past critic of Mozart-effect findings, said the new studies also appear flawed. He said Chikahisa’s paper exhibits some wrong statistical techniques and some of the numbers presented suggest possible selective use of data. Also, the data show the Mozart mice were on average “a little heavier than the other groups. This may indicate greater maturity,” Steele wrote in an email. Moreover, “this study suffers from the same flaw as the Rauscher et al. study: lack of random assignment. The mothers were randomly assigned to a group. But the assignment of the offspring was determined by their mother.” While Steele said he hadn’t yet read the study in Neurological Research in full, he suggested its authors might not have been objective, having supported the Mozart effect previously. A major problem, he said, is that rats can’t even hear most of the notes in the Mozart music played in the studies, and mice may hear none of them. Both animals’ hearing range only covers much higher pitches than human hearing does. Mice and rats are also born deaf, Steele added. But Chikahisa and colleagues argued that mice can hear some of the higher pitches in the music. Also, they wrote, “there are some studies that music influences behavior, brain function, immunity and blood pressure in rodents.” Tokushima University’s Hiroyoshi Sei, one of the co-authors, said in an interview that mice might feel vibrations of music without hearing notes. Peter Aoun and colleagues at the MIND Institute of Costa Mesa, Calif., authors of the Neurological Research study, wrote that rodents needn’t enjoy the music for it to have an effect. Some researchers have argued that certain music may produce benefits simply by stimulating natural patterns of brain activity. Sei said that to clarify such questions, he’s testing the effect of music on totally deaf mice. He’s not sure, he added, what about the music may have influenced the rodents. But “it definitely something affects something in their behavior,” he said.
Play a charged, high energy piece of music (hooked on classics 2 a night at the opera) Have people notice energy level Have them stand and close their eyes. They imagine they are conductor of orchestra and have them conduct using just left elbow, right elb oe etc. end with whole body conducting Ask them to notice energy level again, has it gone up? Brain and body are in sync with the music. Aerobic exercise increased oxygen and blood flow to the brain. Conductors have one of the longest life expectancies! Listen to hard rock and classical and draw or notice in body.