The document discusses reflexes in infants, including:
1. It defines reflexes and differentiates them from reactions, noting that reflexes are involuntary responses while reactions can be voluntary.
2. It classifies reflexes according to factors like their function, the level of central nervous system maturation, the type of stimulus, and their time of appearance.
3. It explains the importance of reflexes for infant survival, development, diagnosis of neurological issues, and use in therapy. Primitive reflexes in particular help with functions like breathing, sucking, and protection from harm.
At the end of the lecture, the students should be able to:
Discuss the theoretical basis of the neurodevelopmental approaches
Discuss the concepts and principles underlying the Bobath approach
Discuss the concepts and principles underlying the Brunnstrom approach
The Brunnstrom approach is a physical therapy technique developed by Signe Brunnstrom for patients with hemiplegia. It uses reflexes and primitive movements to facilitate voluntary movement by progressing through normal developmental stages. The approach assesses tonic reflexes, associated reactions, sensory function, and classifies motor recovery into 6 stages. Exercises aim to elicit synergies and facilitate movement using proprioceptive and exteroceptive cues.
Hierachical theory- says that higher centers control on lower center; but when higher center damage then this inhibitory control from the higher center is loss which leads to exageration of the movt.
In normal individual, these occur a smooth, rhythmic movt. Because there is a presence of control from higher center on lower center.
The document provides an overview of primitive reflexes in infants, including the reflex arc and classification. It describes several important reflexes such as the Moro reflex, rooting reflex, sucking reflex, palmar grasp reflex, plantar grasp reflex, and Babinski reflex. For each reflex, it outlines the testing position and stimulus, expected response, onset and typical integration period. It discusses potential issues associated with retained or abnormal reflexes, including challenges with motor skills, sensory processing, learning, and behavior. Suggestions are provided for integrating reflexes through various proprioceptive and tactile activities.
Cerebral palsy is a heterogeneous disorder of movement and posture caused by a non-progressive brain injury early in development. It presents with a wide variety of motor impairments and can be classified anatomically (e.g. hemiplegia) or physiologically (e.g. spastic, athetoid). Risk factors include prenatal, perinatal, and postnatal insults. Treatment involves both non-operative measures like medication, bracing, and physical therapy as well as operative interventions like tendon lengthening and osteotomies to prevent or treat deformities when they interfere with function. Prognosis depends on the extent and location of brain injury.
Retraining of motor control basing on understanding of normal movement & analysis of motor dysfunction.
Emphasis of MRP is on practice of specific activities, the training of cognitive control over muscles & movt. Components of activities & conscious elimination of unnecessary muscle activity.
In rehabilitation programme involve – real life activities included.
This document discusses several primitive and tonic reflexes seen in infants, including their typical onset, integration period, grading scales, and clinical descriptions. The reflexes discussed include the asymmetric and symmetric tonic neck reflexes, positive support reflex, tonic labyrinthine reflex, and others. The document provides details on techniques for eliciting each reflex and what physical findings correspond to different grades of response.
Spinal cord injuries can be either traumatic, from events like car accidents or falls, or non-traumatic, from conditions that damage the spinal cord. They are classified as either tetraplegia or paraplegia depending on whether the arms or legs are affected. Physiotherapy focuses on managing symptoms, preventing complications, and improving function through exercises for mobility, transfers, wheelchair skills, and more. The goal is to maximize independence and allow patients to safely perform daily living activities. Prognosis depends on the completeness of the injury and potential for recovery decreases over time as improvement plateaus.
At the end of the lecture, the students should be able to:
Discuss the theoretical basis of the neurodevelopmental approaches
Discuss the concepts and principles underlying the Bobath approach
Discuss the concepts and principles underlying the Brunnstrom approach
The Brunnstrom approach is a physical therapy technique developed by Signe Brunnstrom for patients with hemiplegia. It uses reflexes and primitive movements to facilitate voluntary movement by progressing through normal developmental stages. The approach assesses tonic reflexes, associated reactions, sensory function, and classifies motor recovery into 6 stages. Exercises aim to elicit synergies and facilitate movement using proprioceptive and exteroceptive cues.
Hierachical theory- says that higher centers control on lower center; but when higher center damage then this inhibitory control from the higher center is loss which leads to exageration of the movt.
In normal individual, these occur a smooth, rhythmic movt. Because there is a presence of control from higher center on lower center.
The document provides an overview of primitive reflexes in infants, including the reflex arc and classification. It describes several important reflexes such as the Moro reflex, rooting reflex, sucking reflex, palmar grasp reflex, plantar grasp reflex, and Babinski reflex. For each reflex, it outlines the testing position and stimulus, expected response, onset and typical integration period. It discusses potential issues associated with retained or abnormal reflexes, including challenges with motor skills, sensory processing, learning, and behavior. Suggestions are provided for integrating reflexes through various proprioceptive and tactile activities.
Cerebral palsy is a heterogeneous disorder of movement and posture caused by a non-progressive brain injury early in development. It presents with a wide variety of motor impairments and can be classified anatomically (e.g. hemiplegia) or physiologically (e.g. spastic, athetoid). Risk factors include prenatal, perinatal, and postnatal insults. Treatment involves both non-operative measures like medication, bracing, and physical therapy as well as operative interventions like tendon lengthening and osteotomies to prevent or treat deformities when they interfere with function. Prognosis depends on the extent and location of brain injury.
Retraining of motor control basing on understanding of normal movement & analysis of motor dysfunction.
Emphasis of MRP is on practice of specific activities, the training of cognitive control over muscles & movt. Components of activities & conscious elimination of unnecessary muscle activity.
In rehabilitation programme involve – real life activities included.
This document discusses several primitive and tonic reflexes seen in infants, including their typical onset, integration period, grading scales, and clinical descriptions. The reflexes discussed include the asymmetric and symmetric tonic neck reflexes, positive support reflex, tonic labyrinthine reflex, and others. The document provides details on techniques for eliciting each reflex and what physical findings correspond to different grades of response.
Spinal cord injuries can be either traumatic, from events like car accidents or falls, or non-traumatic, from conditions that damage the spinal cord. They are classified as either tetraplegia or paraplegia depending on whether the arms or legs are affected. Physiotherapy focuses on managing symptoms, preventing complications, and improving function through exercises for mobility, transfers, wheelchair skills, and more. The goal is to maximize independence and allow patients to safely perform daily living activities. Prognosis depends on the completeness of the injury and potential for recovery decreases over time as improvement plateaus.
This document classifies spinal cord syndromes as either complete or incomplete. Complete cord syndromes result from total damage across the spinal cord and cause paralysis and loss of sensation below the level of injury. Incomplete cord syndromes result from partial damage and cause more localized neurological deficits. Several types of incomplete cord syndromes are described, including Brown-Sequard syndrome, central cord syndrome, and anterior cord syndrome. The causes, clinical features, and management of these conditions are outlined.
This document discusses a student project assessing coordination. It begins with an introduction on balance and coordination, describing how they depend on multiple body systems interacting. The purpose section states that coordination examinations determine muscle activity characteristics during movement, ability of muscles to work together, movement skill/efficacy, and ability to initiate, control and terminate movement. Coordination is then assessed through various physical tests like walking in a straight line or standing on one foot. The results help identify causes of dizziness/falling and inform treatment by establishing diagnoses and goals. Causes of incoordination discussed include flaccidity from lower motor lesions cutting off nerve impulses to muscles.
Walking is a phenomenon that is taken for granted by healthy individuals, but requires a complex control of the neuromusculoskeletal system. Walking is mainly a result of an automatic process, involving the spinal cord and brainstem mechanisms. Hemiplegic type of gait of a person who has had a brain insult and depends on which area of the brain is affected. Hemiplegic gait usually has:
Decreased stance phase and prolonged swing phase of the paretic side.
Decreased walking speed and shorter stride length.
This document discusses perceptual and cognitive dysfunction. It begins by defining perception as the process of integrating sensory stimuli into meaningful information. Cognition is defined as the act of knowing, including awareness, reasoning, judgment, intuition and memory.
The document then discusses assessment of perceptual and cognitive deficits. It notes that perception is positively correlated with ability to perform activities of daily living and is a prerequisite for learning and rehabilitation. Clinical indicators of perception deficits include functional loss unexplained by motor or sensory deficits and deficient comprehension. Assessment aims to determine intact and affected perceptual abilities and how task performance is affected by deficits.
For management, the document discusses five approaches: transfer of training, sensory integrative, neurodevelopmental, functional, and cognitive
Acquired neuromyotonia is an inflammatory disorder characterized by abnormal nerve impulses from peripheral nerves that cause continuous muscle fiber activity and symptoms like muscle stiffness, cramping and weakness. It has several potential causes including an unknown acquired cause, paraneoplastic syndrome related to cancer, or a hereditary form. Diagnosis involves identifying continuous muscle contractions and abnormal electrical muscle activity on electromyography. Treatment focuses on using anti-convulsant drugs to stop abnormal nerve impulses or plasma exchange to provide short-term relief from symptoms.
Myasthenia Gravis is an autoimmune disorder affecting the neuromuscular junction. Physiotherapy can help patient not only in teaching the patients learn muscle energy conservation technique but also improve the overall functional status of the patient.
This document discusses various types of pathological gaits, which refer to abnormal walking patterns caused by medical conditions. It describes gaits due to pain, muscular issues, deformities, and neurological problems. Specific gaits mentioned include antalgic, psoatic, gluteus maximus, quadriceps, genu recurvatum, hemiplegic, scissoring, dragging, sensory ataxic, foot drop, equinus, and knock knee gaits. Each gait type is characterized by distinct features in terms of leg, hip, knee, and trunk positioning and movement during walking. The document provides details on the anatomical causes and compensations that result in these pathological walking patterns.
This document discusses muscle tone, including its physiology, characteristics of normal and abnormal tone, and approaches to managing tone issues. Muscle tone refers to a continuous low-level contraction that keeps muscles firm and ready to respond. It is important for posture, balance, and movement. Abnormal tone can include hypotonia (low tone) or hypertonia (high tone), and has various causes. Managing tone issues depends on whether it is low or high, and may involve positioning, stretching, splinting or other techniques. The Modified Ashworth Scale is used to assess levels of high muscle tone.
Spasticity, rigidity, hypotonia, dystonia, decerebrate rigidity, and decorticate rigidity are abnormal tones that can occur. Examination of tone includes initial observation, passive and active motion testing using scales like the Modified Ashworth Scale. Typical patterns of spasticity in upper and lower limbs are described for upper motor neuron lesions.
Biofeedback is a technique that uses sensors to measure physiological processes and provide feedback to help patients learn to control these processes. It works on the principle of motor learning by providing knowledge of performance or results. Various biofeedback modalities measure muscle activity, skin temperature, brain waves, heart function and more. Electromyography biofeedback uses electrodes to measure muscle electrical activity and is effective for conditions like muscle re-education, chronic back pain, and spasticity control. Precautions include ensuring patient ability and motivation to participate.
Motor learning is the understanding of acquisition and/or modification of movement.
As applied to patients, motor learning involves the reacquisition of previously learned movement skills that are lost due to pathology or sensory, motor, or cognitive impairments. This process is often referred to as recovery of function.
The document describes tests that can be used to evaluate coordination, balance, gait, and posture in patients. It explains how to test for coordination by having patients perform rapidly alternating movements with their hands and point-to-point movements touching their nose and the examiner's finger. The Romberg test is described to test balance by having patients stand with their eyes closed. Gait is evaluated by having patients walk normally, heel-to-toe, on their toes, and on their heels. The wall test is provided to assess posture.
This presentation contains detailed knowledge about Down's Syndrome its types, clinical presentation, diagnosis, medical and physio therapeutic management of the condition.
Down syndrome is a condition in which a person has an extra chromosome. Chromosomes are small “packages” of genes in the body. They determine how a baby’s body forms and functions as it grows during pregnancy and after birth. Typically, a baby is born with 46 chromosomes. Babies with Down syndrome have an extra copy of one of these chromosomes, chromosome 21. A medical term for having an extra copy of a chromosome is ‘trisomy.’ Down syndrome is also referred to as Trisomy 21. This extra copy changes how the baby’s body and brain develop, which can cause both mental and physical challenges for the baby.
Left hemiplegia is total paralysis of the arm, leg, and trunk on the left side of the body, most commonly caused by stroke which damages the right cerebral hemisphere. Symptoms include loss of control over movements, difficulty walking and swallowing, and numbness on the left side of the body. The goals of physiotherapy rehabilitation are to restore lost abilities, prevent complications, and improve quality of life through mobility exercises, activities of daily living training, orthotics, and addressing issues like spasticity, swallowing, and incontinence. Rehabilitation uses both conventional therapies like range of motion exercises and neurophysiological approaches focused on muscle re-education, neurodevelopment, and motor relearning.
SCOLIOSIS assessment, types and managementSyed Adil
Scoliosis is an abnormal curvature of the spine that can occur in childhood or adolescence. It involves lateral curvature in the coronal plane as well as spinal rotation in the axial plane. Scoliosis is classified as either structural or non-structural. Structural scoliosis is permanent and involves bony deformities, while non-structural scoliosis is temporary and only involves curvature. The most common type of scoliosis is idiopathic scoliosis, which develops in adolescence and accounts for 90% of scoliosis cases in children. Scoliosis is assessed using Cobb's angle measurement, Adam's forward bend test, and a scoliometer. Treatment may involve bracing or surgery depending on the severity
These primitive and tonic reflexes are normally present during infancy and integrate by early childhood. They are not generally present in adults. Patients exhibiting these reflexes often have extensive brain damage or upper motor neuron signs. Key reflexes to examine include flexor withdrawal. The document then provides details on the onset, integration period, stimuli, and responses for various primitive and tonic reflexes such as Moro, grasp, asymmetric tonic neck, and others. It concludes with a thank you.
This document provides information about primitive reflexes present in infants at birth. It begins by outlining the learning objectives, which are to familiarize the reader with the primitive reflexes, how to test them, their purpose and development, and the clinical significance of their persistence. It then defines primitive reflexes as involuntary responses originating in the brainstem that are critical for survival in early life. The document lists and describes the most common primitive reflexes, including palmar grasp, rooting, sucking, Moro reflex, and asymmetric tonic neck reflex. It explains that primitive reflexes normally disappear by 6-12 months as voluntary movement develops, and that their persistence may indicate neurological impairment. The document distinguishes primitive reflexes from
This document classifies spinal cord syndromes as either complete or incomplete. Complete cord syndromes result from total damage across the spinal cord and cause paralysis and loss of sensation below the level of injury. Incomplete cord syndromes result from partial damage and cause more localized neurological deficits. Several types of incomplete cord syndromes are described, including Brown-Sequard syndrome, central cord syndrome, and anterior cord syndrome. The causes, clinical features, and management of these conditions are outlined.
This document discusses a student project assessing coordination. It begins with an introduction on balance and coordination, describing how they depend on multiple body systems interacting. The purpose section states that coordination examinations determine muscle activity characteristics during movement, ability of muscles to work together, movement skill/efficacy, and ability to initiate, control and terminate movement. Coordination is then assessed through various physical tests like walking in a straight line or standing on one foot. The results help identify causes of dizziness/falling and inform treatment by establishing diagnoses and goals. Causes of incoordination discussed include flaccidity from lower motor lesions cutting off nerve impulses to muscles.
Walking is a phenomenon that is taken for granted by healthy individuals, but requires a complex control of the neuromusculoskeletal system. Walking is mainly a result of an automatic process, involving the spinal cord and brainstem mechanisms. Hemiplegic type of gait of a person who has had a brain insult and depends on which area of the brain is affected. Hemiplegic gait usually has:
Decreased stance phase and prolonged swing phase of the paretic side.
Decreased walking speed and shorter stride length.
This document discusses perceptual and cognitive dysfunction. It begins by defining perception as the process of integrating sensory stimuli into meaningful information. Cognition is defined as the act of knowing, including awareness, reasoning, judgment, intuition and memory.
The document then discusses assessment of perceptual and cognitive deficits. It notes that perception is positively correlated with ability to perform activities of daily living and is a prerequisite for learning and rehabilitation. Clinical indicators of perception deficits include functional loss unexplained by motor or sensory deficits and deficient comprehension. Assessment aims to determine intact and affected perceptual abilities and how task performance is affected by deficits.
For management, the document discusses five approaches: transfer of training, sensory integrative, neurodevelopmental, functional, and cognitive
Acquired neuromyotonia is an inflammatory disorder characterized by abnormal nerve impulses from peripheral nerves that cause continuous muscle fiber activity and symptoms like muscle stiffness, cramping and weakness. It has several potential causes including an unknown acquired cause, paraneoplastic syndrome related to cancer, or a hereditary form. Diagnosis involves identifying continuous muscle contractions and abnormal electrical muscle activity on electromyography. Treatment focuses on using anti-convulsant drugs to stop abnormal nerve impulses or plasma exchange to provide short-term relief from symptoms.
Myasthenia Gravis is an autoimmune disorder affecting the neuromuscular junction. Physiotherapy can help patient not only in teaching the patients learn muscle energy conservation technique but also improve the overall functional status of the patient.
This document discusses various types of pathological gaits, which refer to abnormal walking patterns caused by medical conditions. It describes gaits due to pain, muscular issues, deformities, and neurological problems. Specific gaits mentioned include antalgic, psoatic, gluteus maximus, quadriceps, genu recurvatum, hemiplegic, scissoring, dragging, sensory ataxic, foot drop, equinus, and knock knee gaits. Each gait type is characterized by distinct features in terms of leg, hip, knee, and trunk positioning and movement during walking. The document provides details on the anatomical causes and compensations that result in these pathological walking patterns.
This document discusses muscle tone, including its physiology, characteristics of normal and abnormal tone, and approaches to managing tone issues. Muscle tone refers to a continuous low-level contraction that keeps muscles firm and ready to respond. It is important for posture, balance, and movement. Abnormal tone can include hypotonia (low tone) or hypertonia (high tone), and has various causes. Managing tone issues depends on whether it is low or high, and may involve positioning, stretching, splinting or other techniques. The Modified Ashworth Scale is used to assess levels of high muscle tone.
Spasticity, rigidity, hypotonia, dystonia, decerebrate rigidity, and decorticate rigidity are abnormal tones that can occur. Examination of tone includes initial observation, passive and active motion testing using scales like the Modified Ashworth Scale. Typical patterns of spasticity in upper and lower limbs are described for upper motor neuron lesions.
Biofeedback is a technique that uses sensors to measure physiological processes and provide feedback to help patients learn to control these processes. It works on the principle of motor learning by providing knowledge of performance or results. Various biofeedback modalities measure muscle activity, skin temperature, brain waves, heart function and more. Electromyography biofeedback uses electrodes to measure muscle electrical activity and is effective for conditions like muscle re-education, chronic back pain, and spasticity control. Precautions include ensuring patient ability and motivation to participate.
Motor learning is the understanding of acquisition and/or modification of movement.
As applied to patients, motor learning involves the reacquisition of previously learned movement skills that are lost due to pathology or sensory, motor, or cognitive impairments. This process is often referred to as recovery of function.
The document describes tests that can be used to evaluate coordination, balance, gait, and posture in patients. It explains how to test for coordination by having patients perform rapidly alternating movements with their hands and point-to-point movements touching their nose and the examiner's finger. The Romberg test is described to test balance by having patients stand with their eyes closed. Gait is evaluated by having patients walk normally, heel-to-toe, on their toes, and on their heels. The wall test is provided to assess posture.
This presentation contains detailed knowledge about Down's Syndrome its types, clinical presentation, diagnosis, medical and physio therapeutic management of the condition.
Down syndrome is a condition in which a person has an extra chromosome. Chromosomes are small “packages” of genes in the body. They determine how a baby’s body forms and functions as it grows during pregnancy and after birth. Typically, a baby is born with 46 chromosomes. Babies with Down syndrome have an extra copy of one of these chromosomes, chromosome 21. A medical term for having an extra copy of a chromosome is ‘trisomy.’ Down syndrome is also referred to as Trisomy 21. This extra copy changes how the baby’s body and brain develop, which can cause both mental and physical challenges for the baby.
Left hemiplegia is total paralysis of the arm, leg, and trunk on the left side of the body, most commonly caused by stroke which damages the right cerebral hemisphere. Symptoms include loss of control over movements, difficulty walking and swallowing, and numbness on the left side of the body. The goals of physiotherapy rehabilitation are to restore lost abilities, prevent complications, and improve quality of life through mobility exercises, activities of daily living training, orthotics, and addressing issues like spasticity, swallowing, and incontinence. Rehabilitation uses both conventional therapies like range of motion exercises and neurophysiological approaches focused on muscle re-education, neurodevelopment, and motor relearning.
SCOLIOSIS assessment, types and managementSyed Adil
Scoliosis is an abnormal curvature of the spine that can occur in childhood or adolescence. It involves lateral curvature in the coronal plane as well as spinal rotation in the axial plane. Scoliosis is classified as either structural or non-structural. Structural scoliosis is permanent and involves bony deformities, while non-structural scoliosis is temporary and only involves curvature. The most common type of scoliosis is idiopathic scoliosis, which develops in adolescence and accounts for 90% of scoliosis cases in children. Scoliosis is assessed using Cobb's angle measurement, Adam's forward bend test, and a scoliometer. Treatment may involve bracing or surgery depending on the severity
These primitive and tonic reflexes are normally present during infancy and integrate by early childhood. They are not generally present in adults. Patients exhibiting these reflexes often have extensive brain damage or upper motor neuron signs. Key reflexes to examine include flexor withdrawal. The document then provides details on the onset, integration period, stimuli, and responses for various primitive and tonic reflexes such as Moro, grasp, asymmetric tonic neck, and others. It concludes with a thank you.
This document provides information about primitive reflexes present in infants at birth. It begins by outlining the learning objectives, which are to familiarize the reader with the primitive reflexes, how to test them, their purpose and development, and the clinical significance of their persistence. It then defines primitive reflexes as involuntary responses originating in the brainstem that are critical for survival in early life. The document lists and describes the most common primitive reflexes, including palmar grasp, rooting, sucking, Moro reflex, and asymmetric tonic neck reflex. It explains that primitive reflexes normally disappear by 6-12 months as voluntary movement develops, and that their persistence may indicate neurological impairment. The document distinguishes primitive reflexes from
This document discusses various theories of motor control and development, including primitive reflexes, hierarchical models, and systems theories. It provides details on specific primitive reflexes like Moro and ATNR. Clinical approaches discussed include Rood, Brunnstrom, NDT/Bobath, PNF, and task-oriented therapy. No single theory captures everything, so therapists combine elements from multiple frameworks in their dynamic systems approach to intervention.
Infant reflexes are involuntary movements in response to stimuli that are dominant in the last 4 months of prenatal development and the first 4 months after birth. They occur below the level of higher brain centers and are important for protection, nutrition, and survival of infants. While most infant reflexes disappear by 1 year of age, some may be integrated into voluntary movements that support activities like crawling, walking, and grasping. Testing infant reflexes can help evaluate neurological development and identify potential issues. The document describes several important primitive and postural reflexes in infants, including the stimuli needed to elicit each reflex and the typical time period it is present.
The document discusses primitive reflexes and stereotypies in infants. It defines primitive reflexes as involuntary responses originating in the central nervous system that are present in infants but not adults. Seventeen common primitive reflexes are described in detail, including the moro, palmar grasp, sucking, and babinski reflexes. The importance of primitive reflexes in survival and development of future voluntary movements is explained. The document also discusses using reflexes as diagnostic tools and lists some common stereotypical movements exhibited by infants.
Primitive and tonic reflex are present during infancy as a stage in normal development and become integrated by CNS at an early age.
Once integrated, these reflexes are not generally recognizable in adults in their pure form.
Reflex important to examine in the patient suspected of abnormal reflex activity include flexor withdrawal, traction, grasp, tonic labyrinthine, positive support, and associated reactions.
To obtain an accurate examination, the therapist must be positioned appropriately to allow for expected response.
And adequate test stimulus is essential, including both adequate magnitude and duration of stimulation.
Neonatal reflexes are involuntary responses to stimuli that are present at birth and provide important clues about neurological development. The document describes various reflexes like the moro, rooting, and gag reflex and explains how they are elicited and their significance. Understanding reflex development helps assess normal motor skills progression and identify potential abnormalities.
Neonatal reflexes are involuntary responses to stimuli that are present at birth and provide important clues about neurological development. The document describes various reflexes like the moro, rooting, and gag reflex and explains how they are elicited and their significance. Understanding reflex development helps assess if an infant's motor skills and neurological functioning are progressing typically.
This document summarizes a presentation on child development and the impact of retained primitive reflexes on learning. It discusses the progression of typical reflex development and integration from birth through age 3. Challenges can arise when reflexes are not properly integrated, including problems with motor skills, sensory processing, and academic tasks. The presentation aims to help practitioners identify children with retained reflexes and provide activities to support integration.
Assignment Details
Open Date
Apr 2, 2018 12:05 AM
Graded?
Yes
Points Possible
100.0
Resubmissions Allowed?
No
Attachments checked for originality?
Yes
Top of Form
Assignment Instructions
In a five paragraph essay (600 minimum words) using your favorite theorist, apply that theory to brain development as it was discussed in our readings. You may also include the impact of culture, early physical growth, and similar factors that impact the overall development of the child.
See attached rubric for grading details.
Supporting Materials
·
308 Assignment 3. Rubric.doc
(50 KB)
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The Physical Development of the Young Child
Take a moment and think about a newborn infant--at birth, human infants are, essentially, completely vulnerable and helpless. Unlike many animals, they cannot walk, consume solid food, or manage even the most basic tasks for their own survival. This is the price we pay for our brains--we are born far less developed than many creatures. Over the course of a very short time, around two years, that helpless newborn learns to walk and talk, to manipulate objects, to engage and participate in the world around her.
This transition from a helpless newborn to a toddler or preschooler requires massive amounts of
learning
, fueled by rapid brain growth, sensorimotor development, and physical growth. The infant, from birth, uses his ability to perceive to learn and develop an understanding of the world around him.
TOPICS COVERED WILL INCLUDE:
Brain development during infancy and toddlerhood at the larger level of the cerebral cortex.
Learning through classical conditioning, operant conditioning, habituation and recovery, and imitation.
Dynamic Systems theory of motor development, highlighting cultural variations in motor development.
Gibsons’ Differentiation Theory of perceptual development.
The Development of the Brain
Brain development in the first two years of life is fascinating and awe-inspiring. Most of the physical growth of the brain occurs during the first two years of life. Neuroscience has shed light on the development of
neurons
and the
cerebral cortex
in particular. At birth, infants have approximately one hundred billion neurons. Relatively few neurons will be produced after birth. The newborn’s neurons are connected only tentatively. In the first years, essential connections between neurons form. Combined with understanding sensitive periods and the role of the environment, we have a much clearer picture of what is happening in the infant and toddler brain today than ever before.
Note the lobes of the brain
Development of Neurons
Neurons firing in the brain
Neurons are nerve cells in the brain that store and transmit information. In total, the human brain has between 100 to 200 billion of these neurons.
‹
1/4
›
· Neurons send messages from one to another through tiny gaps, called
synapses
. These messages travel on chemicals called neur ...
This document provides information on examining the nervous system in pediatric patients of different ages. It discusses the approaches and techniques used, which vary depending on the age of the child. For infants, the examination focuses on evaluating posture, tone, and primitive reflexes. It is important to observe developmental abilities and note any abnormalities. The neurologic and developmental examinations should proceed together in infants. The document outlines the assessment of various reflexes and tones in an infant neurological examination.
This document discusses brain plasticity and development. It begins with a review of concepts from the previous class, including that neural stem cells can give rise to both neurons and glial cells. It then discusses mechanisms of cortical development from the inside out via neuronal migration. The document reviews findings from longitudinal MRI studies showing cortical thinning from childhood to adolescence reflects pruning of synapses and myelination. It also summarizes studies finding brain differences at 6 months in infants who later develop autism versus those who do not. Finally, it discusses forms of learning in newborns including classical and operant conditioning, and how sleep facilitates memory and brain development in infants.
The document discusses various reflexes seen in infants and their significance. It begins by defining a reflex and describing the basic reflex arc involving receptors, afferent nerves, centers, efferent nerves and effectors. Reflexes are then classified based on whether they are inborn or acquired, their neurological pathway, purpose and clinical presentation. Several important reflexes seen in newborns like the moro, rooting and babinski reflexes are explained in detail. The document emphasizes that assessment of infant reflexes helps identify normal development and potential abnormalities.
The Rood approach uses light touch and movement to stimulate reflexes and improve motor control, while the task-oriented approach focuses on having patients perform meaningful tasks to improve occupational performance and identify control parameters that can shift movement patterns.
1- What do you see as the most important things that parents cansandibabcock
1- What do you see as the most important things that parents can do to help their children at this point in their lives?
2- Next, classify those things from question one into operant or classical conditioning, habituation and recovery, or
imitation. Then describe how those activities support the child’s development?
READING
The Physical Development of the Young Child
Take a moment and think about a newborn infant--at birth, human infants are, essentially, completely vulnerable and helpless. Unlike many animals, they cannot walk, consume solid food, or manage even the most basic tasks for their own survival. This is the price we pay for our brains--we are born far less developed than many creatures. Over the course of a very short time, around two years, that helpless newborn learns to walk and talk, to manipulate objects, to engage and participate in the world around her.
This transition from a helpless newborn to a toddler or preschooler requires massive amounts of
learning
, fueled by rapid brain growth, sensorimotor development, and physical growth. The infant, from birth, uses his ability to perceive to learn and develop an understanding of the world around him.
TOPICS COVERED WILL INCLUDE:
Brain development during infancy and toddlerhood at the larger level of the cerebral cortex.
Learning through classical conditioning, operant conditioning, habituation and recovery, and imitation.
Dynamic Systems theory of motor development, highlighting cultural variations in motor development.
Gibsons’ Differentiation Theory of perceptual development.
The Development of the Brain
Brain development in the first two years of life is fascinating and awe-inspiring. Most of the physical growth of the brain occurs during the first two years of life. Neuroscience has shed light on the development of
neurons
and the
cerebral cortex
in particular. At birth, infants have approximately one hundred billion neurons. Relatively few neurons will be produced after birth. The newborn’s neurons are connected only tentatively. In the first years, essential connections between neurons form. Combined with understanding sensitive periods and the role of the environment, we have a much clearer picture of what is happening in the infant and toddler brain today than ever before.
Development of Neurons
Neurons are nerve cells in the brain that store and transmit information. In total, the human brain has between 100 to 200 billion of these neurons.
‹
1/4
›
Neurons send messages from one to another through tiny gaps, called
synapses
. These messages travel on chemicals called neurotransmitters.
Development of the Cerebral Cortex
The cerebral cortex is the portion of the brain we think of when we hear the word brain. The other parts of the brain are the cerebellum and the brain stem. These parts of the brain are responsible for a number of physical functions, but not for though ...
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.
The document discusses reflex arcs and reflexes. It defines a reflex arc as an involuntary response to a stimulus that involves a receptor, sensory transmission through afferent nerves, integration in the central nervous system, and motor response through efferent nerves and effectors. It provides the example of a spinal reflex using a headless frog where touching the limb causes withdrawal. The basic components of a reflex arc are described as the receptor, afferent limb, center (spinal cord or brain), efferent limb, and effector organ. Reflexes are also classified clinically, by number of synapses, and physiologically.
This document summarizes various reflexes present in infants, including general body reflexes like the Moro reflex, startle reflex, and grasp reflex. It also discusses facial reflexes such as the nasal reflex, blink reflex, and corneal reflex. Finally, it outlines several oral reflexes in infants including the rooting reflex, sucking reflex, swallowing reflex, and gag reflex. The document provides details on when each reflex develops and disappears during infancy.
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2. Objectives of the lecture
Understand definition and concepts of reflexes.
Report the difference between reflex and reaction.
Identify the importance of reflexes.
Recognize classification of reflexes.
Discuss the classifications of reflexes according to level of
C.N.S. maturation, type of stimulus and their time of
appearance.
3. What’s a reflex?
Reflex is "a relatively stereotyped movement or response
elicited by a stimulus applied to the periphery, transmitted to
the central nervous system and then transmitted back to the
periphery.’’
Dominant movement form during the last 4 months of
prenatal life and first 4 months after birth.
Occur subcortically (below the level of the higher brain
centers).
4.
5. What is the difference between reflex and reaction?
A reflex is an involuntary response to an external stimulus,
usually to protect the body.
A reflex is a physical non-conscious action (eg. tendon jerk).
Reaction is a feeling or action in response to something that
has happened.
A reaction is a voluntary response to an external stimulus,
and can be trained to become faster through regular practice.
6. What is the difference between reflex and
reaction?
The speed of a reflex is greater than that of a voluntary
reaction, due largely to the relative complexity of the neural
pathway for a reaction (Fig. 1) compared to that for a reflex
(Fig. 2).
Fig. 1
Fig. 2
7. Types of Reflexes
Primitive
• Survival and protection
Postural
• Reaction to gravity and changes in the equilibrium
Locomotor
• Resemble later voluntary locomotion movements
8. What is the importance of reflexes?
1-Dominant form of movement for last 4 months prenatally and
first 4 months postnatal.
2- Survival Function: Primitive reflexes critical for human
survival.
3- Influence the child normal development.
4- Therapeutic function.
5- Diagnostic function.
9. 2- Survival Function: Primitive reflexes are critical for human
survival.
Human infants essentially helpless. Highly dependent on their
caretakers and reflexes for protection and survival.
Primitive reflexes emerge during gestation or at birth and most
are repressed by 6 months of age.
Primitive reflexes are important for protection, nutrition
(Sucking reflex and Rooting reflex) and survival.
An example is the rooting reflex, which helps a breastfed infant
find the mother's nipple. Babies display it only when hungry
and touched by another person, not when they touch
themselves.
Some reflexes serve protective functions i.e. protect your body
against harm , for example, eye-blink reflex and flexor withdrawal.
10. 3- Influence the child normal development
Future Motor Development
Reflex
Rolling
Neck righting
Upright posture
Labyrinthine
Grasping
Palmar grasp
Reflex integration is essential in normal development. Postural
reflexes believed to be foundation for later voluntary
movements. Response to the reflexes prepares the infant for
progressive development such as rolling over, sitting, crawling,
standing,… etc.
11.
12.
13. 4- Therapeutic function.
Some reflexes are utilized in therapeutic programs for children
with developmental disorders, for example, postural reflexes
are used to promote the upright posture.
14. The presence and strength of a reflex is an important sign of
nervous system development and function.
5- Diagnostic function
A . Presence
Reflexes can determine level of neurological maturation.
Appearance and disappearance are helpful in diagnosing
neurological disorders.
Reflexes are age-specific in normal, healthy infants. Severe
deviations from normal time frame may indicate neurological
immaturity or dysfunction e.g. persistence to an
inappropriate age ( the presence of an infant reflex after the
age at which the reflex normally disappears; can be a sign of
brain damage or damage to the nervous system).
15. B . Strength of
reflex
The reflexes indicate abnormality by their weakness,
absence, excessive strength.
Bilateral absence of Moro reflex may mean damage to the infant's central nervous
system while a unilateral absence could mean an injury due to birth trauma such as
a fractured clavicle or injury to the brachial plexus. Erb's palsy or some other form
of paralysis is also sometimes present in such cases.
16. Reflexes Testing as Diagnostic Tools
Need state of quietness.
Reflexes should be tested carefully :-
If baby restless, crying,
sleepy, or distracted, may
not respond to applied
stimulus.
Especially valuable with
children suspected of
motor delay.
17. Quantification of the level of presence or strength of
primitive reflexes.
4 reflexes: Moro, asymmetric tonic neck, symmetric tonic
neck, + supporting:
-Moro (may signify cerebral birth injury if lacking or asymmetric
e.g Erb’s palsy).
-ATNR (may indicate cerebral palsy or other neurological
problem if persists past normal time).
18. Reflexes as Diagnostic Tools
Milani Comparetti Neuromotor
Development Examination
Measures several infant reflexes from
birth to 24 months.
Develops profile of child’s movement in
relation to what is expected at a specific
age.
Especially valuable with children
suspected of motor delay.
19. Certain points to be considered during reflex testing
1- Name of the reflex and its level.
2- Age of the reflex.
3- Position from which the reflex will be tested.
4- +ve & -ve response of the reflex.
20. 1- According to their function.
2-According to their relation to the normal sequence of motor
development.
3-According to the level of central nervous system maturation.
Classification of reflexes
4- According to the type of stimulus.
5- According to their time of appearance.
21. 1- According to their function.
Some are protective and have a survival value for the infant.
Some promote postural support and balance.
22. 2- According to their relation to the normal sequence of motor
development.
A pedal:
-Spinal and/or brain stem level.
-Primitive reflexes.
-Allow for prone/supine lying.
Quadripedal:
-Midbrain level.
-Righting reactions.
-Allow for crawling and sitting.
Bipedal level:
-Cortical level.
-Equilibrium and protective reactions.
-Allow for standing and walking.
23. 3- According to the level of central nervous system maturation
Spinal reflexes
Cortical reflexes
Brain stem
reflexes
Midbrain reflexes
24. Spinal reflexes
First level of reflexes according to CNS maturation.
Primitive reflexes.
Phasic coordination movement reflexes which coordinate
muscles of extremities in patterns of either total flexion or
extension.
Apedal dominance.
Examples ( Flexor withdrawal, Extensor thrust, Crossed
extension).
25. Is a spinal reflex.
It is polysynaptic reflex.
Aim : To protect the body from damaging stimuli.
Flexor withdrawal reflex, a common
cutaneous reflex consisting of a
widespread contraction of flexor
muscles and relaxation of extensor
muscles. It is characterized by
abrupt withdrawal of a body part in
response to painful or injurious
stimuli. A relatively innocious
stimulation of the skin may result in
a weak contraction of one or more
For example :
Flexor withdrawal reflex ( nociceptive reflex ):-
Spinal reflexes
26. 2nd Level, static postural, apedal.
Complete domination of these primitive brain stem reflexes
results in an apedal (prone , supine - lying) creature.
They affect the distribution of muscle tone either in response
to change position of head & body in space (labyrinths
stimulation) or in response to change of head in relation to
the body (proprioceptive stimulation).
Brain stem
reflexes
28. Righting reactions interact with each other and work toward
establishment of normal head and body relationship in space
as well as in relation to each other.
Their combined actions enable the child to roll over, sit up,
get on his hands and knees, and make him a quadripedal
creature.
They are integrated at the midbrain level above the red
nucleus, not including cortex.
( Righting reactions
)
Midbrain reflexes
There are the first such reactions to develop after birth and
reach maximal concerted effect about age ten to twelve
months. As cortical control increases, they are gradually
modified, inhibited and disappear towards the end of the fifth
year.
29. The righting reflexes involve complicated mechanisms and
processes associated with the structures of the internal ear,
such as the utricle, the saccule, the macula, and the
semicircular canals.
Any change in the position of the head produces a change in
the pressure on the gelatinous membrane of the macula. The
fibers of the nerve (vestibular branch of the eight cranial
nerve) transmit impulses to the brain, producing a sense of
position. The head and trunk are thus kept in alignment. Also
activating righting reflexes are proprioceptors in muscles and
tendons and visual nerve impulses. Also called body righting
reflex.
Midbrain reflexes
30. Types of Righting Reaction
Definition :
A series of righting reactions develop in the first year of life and
serves to maintain head alignment with the body and upper-body
alignment with lower body. When rotation is imposed on the body,
these reactions realign the segments of the body. These reactions also
maintain body alignment during forward flexion of the trunk and
prone suspension.
Types :
1- Neck righting acting on body.
2- Body righting acting on body.
3- Labyrinthine righting acting on head.
4- Optical righting acting on head.
5- Amphibian Reaction.
Midbrain reflexes
31. Automatic Movement Reactions:
They are not strictly righting reflexes, but are reactions produced by
changes in the position of the head and hypothetically involved either
the semicircular canals or labyrinths, or neck proprioceptors.
Types :
1- Moro reflex
2-Landau reflex
3-Protective Extensor Thrust
32. These reactions are mediated by the efficient interaction of
cortex and basal ganglia and cerebellum.
Maturation of equilibrium reactions bring the individual to
human bipedal stage of motor development.
Types of Cortical
Reactions
Cortical reflexes
Equilibrium Reactions
1
Protective Reactions
2
33. Responses to external disturbance [either placing child on
unstable surface, or manual displacement from stationary
supporting surface].
Are reactive or compensatory reactions.
They continue to develop in more upright positions in first 5
years of life.
Equilibrium and Protective Reactions :-
They emerge in lower – level positions [supine, prone] when
the infants is 4 to 6 months of ages.
Cortical reflexes
34. Aim: Serve to return the child’s body to a vertical position
after displacement.
Stimulus: Tilting [anterior, posterior, lateral or diagonal].
Equilibrium Reactions
1
Cortical reflexes
Response: [movement of trunk and extremities that oppose
the displacement to bring COG within BOS]
35. Aim: Protective reactions differ from equilibrium reactions in
that they protect the infant from a fall rather that correct a
displacement.
Stimulus: The amount of displacement needed to elicit
protective reaction must be greater in magnitude than used
to elicit equilibrium reaction.
Protective Reactions
2
( Parachute reactions
)
Response: These reactions are characterized by extension and
abduction of the extremities to “catch” the child as he falls
i.e. to stop the movement. Response occur in the same
direction of fall.
Cortical reflexes
36. 4- According to the type of stimulus
1-Reflexes
respond to touch
• Palmar grasp reflex.
• Plantar reflex.
• Placing reflex.
• Rooting reflex.
2-Reflexes
respond to pressure and pain
• Gallant’s reflex,
• Withdrawal reflex.
• Crossed extension.
• Babiniski reflex.
• Magnet reflex.
• Walking/stepping reflex.
3-Reflexes
respond to kinesthetic stimuli e.g.
Tendon reflexes
Asymmetrical tonic neck
reflex.
Symmetrical tonic neck reflex.
Moro reflex.
Head righting on body.
Body righting on body.
4-Reflexes
respond to visual and auditory stimuli
e.g.
Blink reflex.
Optical righting,
Startle.
37. 5- According to their time of appearance
Primary reflexes (primitive) which are present at birth and
disappear during the first year, then fade to be replaced by
secondary reflexes (postural reaction)which mainly appear in
the second 6 months of first year).
Primitive reflexes ( Time of appearance) :
Survival and protection (Function)
Postural reactions ( Time of appearance) :
Reaction to gravity and changes in the equilibrium
(Function).