Physiological research with human brain is getting more popular because it is the center of human nervous system. Music is a popular source of entertainment in modern era which affects differently in different brain lobes for having different frequency and pitch. The brain lobes are divided into frontal, central and parietal lobe. In this paper, an approach has been proposed to identify the activated brain lobes by using spectral analysis from EEG signal due to music evoked stimulation. In later phase, the impact of music on the EEG bands (alpha, beta, delta, theta) originating from different brain lobes is analyzed. Music has both positive and negative impact on human brain activity. According to linguistic variation, subject age and preference, volume level of songs, the impact on different EEG bands varies. In this work, music is categorized as mild, pop, rock song at different volume level (low, comfortable and high) based on Power Spectral Density (PSD) analysis. The average PSD value is 0.21 W/Hz, 0.32W/Hz and 0.84W/Hz for mild, pop and rock song respectively. The volume levels are considered as 0%-15% volume level for low volume, 16%- 55% volume level for comfortable volume and 56%-100% volume level for high volume. At comfortable volume level the central lobe of the brain is more activated for mild song and parietal lobe is activated for both pop and rock songs based on logarithmic power and PSD analysis. A statistical test two- way ANOVA has been conducted to indicate the variation in EEG band. For two-way ANOVA analysis, the P-value was taken as 0.05. A topographical representation has been performed for effective brain mapping to show the effects of music on the EEG bands for mild, pop and rock songs at the mentioned volume level. The maximum percentage of alpha band activation is 60% in comfortable volume which decreases with high volume and it indicates that, when the music stimuli moved towards the high-volume level, human cognition state moves from relax to stress condition due to the activeness of beta band. A Graphical User Interface (GUI) has been designed in MATLAB platform for the entire work.
Neural oscillations occur throughout the central nervous system and can be measured at different scales: microscopic (single neuron), mesoscopic (local groups of neurons), and macroscopic (between brain regions). At the microscopic level, neurons generate action potentials that form rhythmic spike trains. Groups of synchronized neurons give rise to local field potential oscillations. Interactions between brain areas also produce large-scale oscillations measured by EEG. Different neural oscillations have been linked to cognitive functions like perception and memory.
The nervous system has two main parts - the central nervous system and the peripheral nervous system. The central nervous system is made up of the brain and spinal cord. The brain controls functions like thought, memory, movement, and senses. It is made up of regions like the cerebrum, cerebellum, and brain stem. The spinal cord acts as a pathway for information between the brain and body and helps coordinate reflexes. The peripheral nervous system connects the central nervous system to the rest of the body.
The document summarizes key findings about how the brain processes music and the arts. It discusses brain imaging technologies that have helped researchers understand brain activity. It describes how the left and right hemispheres process music differently for musicians versus non-musicians. Early concepts of distinct left and right brain functions are now outdated as the brain uses complex interactions between regions. Arts engage both hemispheres and influence cognitive development.
1. This document discusses neuron activation signals in the brain and how they relate to EEG measurements and blood oxygen levels. It describes how EEG maps different frequency bands to cognitive states and activities. It also discusses how external brain-computer interfaces can be used for medical applications by recording EEG signals or stimulating neurons.
2. The document speculates that remote wireless devices could potentially scan and map EEG signals without electrodes, enabling covert abuse. It suggests such devices could target brain regions to induce artificial sensations like tinnitus. However, the speculation about covert abuse technology is presented without evidence.
3. The document raises ethical concerns about potential misuse of brain mapping and stimulation technologies but presents speculative claims about covert abuse devices without clear supporting
This chapter discusses the biological basis of behavior, focusing on the nervous system and endocrine system. It describes how neurons communicate via electrical and chemical signals to coordinate the body's functions. Specific areas of the brain like the limbic system and cerebral cortex each have roles in functions like memory, emotion, language, and movement. Genes and evolution also influence behavior, as seen through studies in behavior genetics and evolutionary psychology.
Neural oscillations occur throughout the central nervous system and can be measured at different scales: microscopic (single neuron), mesoscopic (local groups of neurons), and macroscopic (between brain regions). At the microscopic level, neurons generate action potentials that form rhythmic spike trains. Groups of synchronized neurons give rise to local field potential oscillations. Interactions between brain areas also produce large-scale oscillations measured by EEG. Different neural oscillations have been linked to cognitive functions like perception and memory.
The nervous system has two main parts - the central nervous system and the peripheral nervous system. The central nervous system is made up of the brain and spinal cord. The brain controls functions like thought, memory, movement, and senses. It is made up of regions like the cerebrum, cerebellum, and brain stem. The spinal cord acts as a pathway for information between the brain and body and helps coordinate reflexes. The peripheral nervous system connects the central nervous system to the rest of the body.
The document summarizes key findings about how the brain processes music and the arts. It discusses brain imaging technologies that have helped researchers understand brain activity. It describes how the left and right hemispheres process music differently for musicians versus non-musicians. Early concepts of distinct left and right brain functions are now outdated as the brain uses complex interactions between regions. Arts engage both hemispheres and influence cognitive development.
1. This document discusses neuron activation signals in the brain and how they relate to EEG measurements and blood oxygen levels. It describes how EEG maps different frequency bands to cognitive states and activities. It also discusses how external brain-computer interfaces can be used for medical applications by recording EEG signals or stimulating neurons.
2. The document speculates that remote wireless devices could potentially scan and map EEG signals without electrodes, enabling covert abuse. It suggests such devices could target brain regions to induce artificial sensations like tinnitus. However, the speculation about covert abuse technology is presented without evidence.
3. The document raises ethical concerns about potential misuse of brain mapping and stimulation technologies but presents speculative claims about covert abuse devices without clear supporting
This chapter discusses the biological basis of behavior, focusing on the nervous system and endocrine system. It describes how neurons communicate via electrical and chemical signals to coordinate the body's functions. Specific areas of the brain like the limbic system and cerebral cortex each have roles in functions like memory, emotion, language, and movement. Genes and evolution also influence behavior, as seen through studies in behavior genetics and evolutionary psychology.
独中高中生物Chapter 13 Part 3 Peripheral nervous syste,Yee Sing Ong
- The peripheral nervous system (PNS) consists of nerves and ganglia outside the brain and spinal cord that relay signals between the central nervous system and the body. The PNS includes the somatic and autonomic nervous systems.
- The somatic nervous system controls voluntary body movements via skeletal muscles. The autonomic nervous system unconsciously regulates functions of internal organs through sympathetic and parasympathetic nerves.
- Sympathetic nerves dominate the "fight or flight" response while parasympathetic nerves dominate "rest and digest".
The document provides information about the major parts and functions of the human brain. It discusses the central nervous system (CNS) which includes the brain and spinal cord, as well as the peripheral nervous system (PNS) which includes nerves. The main sections and subsections of the brain are described in detail, including the cerebrum, cerebellum, brain stem, diencephalon, ventricles, and lobes. The roles and structures of these various brain regions are summarized.
1. Vertebrate nervous systems are divided into central and peripheral components. The peripheral nervous system interacts to maintain homeostasis.
2. The embryonic development of the vertebrate brain reflects its evolution from three anterior bulges of the neural tube forming the forebrain, midbrain, and hindbrain.
3. The human brain is divided into conscious and unconscious regions. The conscious regions include the cerebrum which is divided into four lobes. The unconscious regions include the brainstem and cerebellum which regulate vital functions and coordinate movement.
The document summarizes key aspects of brain structure and function in 3 paragraphs or less:
The brainstem controls automatic functions like breathing and heart rate. The cerebellum aids in movement coordination and balance. The limbic system processes emotions and memories. The cerebral cortex is the brain's control center, with different lobes having distinct functions - frontal lobe for planning, parietal for senses, occipital for vision, and temporal for hearing. Within the cortex, specialized areas control motor skills, language processing, and other cognitive abilities. The brain is plastic and can reorganize over time based on experiences. Sensory systems like vision, hearing, touch, taste and smell detect environmental inputs which the brain interprets as perceptions
The document provides an overview of the nervous system including:
1) It describes the two major divisions of the nervous system - the central nervous system (CNS) and peripheral nervous system (PNS).
2) It explains the functional anatomy of the CNS including structures like the brain, spinal cord, and various parts of the brain.
3) It details the functional anatomy of the PNS including cranial nerves, spinal nerves, nerve plexuses, and the autonomic nervous system.
1. The document discusses the structure and function of the nervous system, including the central nervous system (brain and spinal cord), peripheral nervous system, and the two main cell types of neurons and glial cells.
2. It describes how neurons are classified and structured, including the parts of neurons like the cell body, dendrites, and axon. Myelination of axons by glial cells affects impulse conduction speed.
3. Neurons conduct signals through electrical impulses called action potentials and chemical signaling at synapses using neurotransmitters. This allows for communication between neurons and integration of signals in the nervous system.
The nervous system is made up of neurons that transmit signals between different parts of the body. The basic unit is the neuron, which contains a cell body, dendrites that receive signals, and an axon that transmits signals. Neurons transmit signals through electrical and chemical processes. The nervous system is divided into the central nervous system (brain and spinal cord) and peripheral nervous system (nerves). The brain is the most complex part and is divided into the cerebrum, cerebellum, and brainstem. The cerebrum controls functions like learning, reasoning, and emotions. The nervous system allows for coordination of voluntary and involuntary body functions.
This document provides an overview of the nervous system including its anatomy and physiology. It discusses the central nervous system including the brain, spinal cord and meninges. It describes the peripheral nervous system including cranial nerves and autonomic nervous system. Key cells, structures and functions are defined including neurons, glial cells, neurotransmitters, blood brain barrier and cerebrospinal fluid.
The document provides information about neurons. It discusses that Dr. Suresh Kumar Murugesan is a professor of psychology from India. It then provides details about the typical structure of a neuron, including the dendrites, cell body, axon, axon terminals, and myelin sheath. Research on neurons aims to better understand neurogenesis and diseases like Alzheimer's and Parkinson's. The document outlines the basic functions of neurons in receiving signals, integrating information, and communicating signals to other cells.
This document discusses the biological basis of behavior, including the structure and function of neurons, neurotransmission, and the nervous system. It describes how neurons communicate via electrical and chemical signals to transmit information throughout the brain and body. Specifically, it outlines how neurons, glial cells, neurotransmitters, and the endocrine system all contribute to human behavior and psychological processes.
The document discusses the structure and function of the human nervous system. It describes how the nervous system is divided into the central nervous system (CNS) and peripheral nervous system (PNS). The CNS contains the brain and spinal cord, while the PNS connects them to sensory receptors and effector organs. The nervous system receives sensory input, integrates the information in the CNS, and sends motor responses through the PNS to coordinate body functions and maintain homeostasis.
The document discusses the human nervous system and its role in response and coordination. It describes:
1) The human nervous system collects information from internal and external stimuli, transmits it to processing centers in the brain and spinal cord, coordinates responses, and maintains homeostasis.
2) The brain is divided into the cerebrum, cerebellum, and brain stem. The cerebrum controls voluntary movement and complex cognitive functions while the cerebellum controls movement coordination and balance.
3) Neurons are the basic functional units of the nervous system, connecting the brain to receptors and effectors via electrically signaling axons surrounded by a myelin sheath for fast transmission.
lecture 5 from a college level introduction to psychology course taught Fall 2011 by Brian J. Piper, Ph.D. (psy391@gmail.com) at Willamette University, includes Golgi, Cajal, parts of the neuron, action potentials, synapse, neurotransmitters, agonist, antagonist, parts of the nervous system
F:\Biology Form 5\Chp 3 Coordination And Response\3 2 The Role Of The Human N...racheleasaw
The document summarizes the key roles and functions of the human nervous system. It discusses how the nervous system is organized into the central nervous system (CNS) and peripheral nervous system (PNS). The CNS includes the brain and spinal cord, which process sensory information, coordinate functions, and initiate motor responses. The PNS connects the CNS to receptors and effectors through nerves. Within the nervous system, neurons transmit signals as nerve impulses between the CNS, receptors, and effectors to coordinate senses, movement, and homeostasis.
The nervous system is composed of neurons and neuroglia. It detects stimuli through sensory neurons, processes information in the central nervous system, and responds through motor neurons. The central nervous system includes the brain and spinal cord. The brain is made up of the cerebrum, cerebellum, and brainstem. The peripheral nervous system connects the central nervous system to the body and is divided into the somatic, autonomic, and enteric systems. Neurons have a cell body, dendrites, and axon. The nervous system maintains homeostasis through detection of and response to stimuli.
The document provides an overview of the nervous system, including its organization, components, and functions. It discusses the central and peripheral nervous systems. The central nervous system contains the brain and spinal cord, and processes sensory information and motor output. The peripheral nervous system connects the central nervous system to the body and includes nerves, ganglia, and receptors. It also describes neurons, their structure and signaling processes, as well as neurotransmission and electrical signaling within the nervous system.
This document provides an introduction to brainwaves and brainwave entrainment. It describes the five main brainwave patterns (gamma, beta, alpha, theta, delta), their associated frequencies in Hertz, the mental and neural states and processes associated with each pattern. Each brainwave pattern is involved in different cognitive processes and states of consciousness, from high-frequency gamma waves during deep focus to low-frequency delta waves during deep sleep or meditation.
1. The document discusses neuron activation signals in the brain and how they relate to EEG oscillations and blood oxygen levels. Neuron activation produces changes in blood oxygenation that can be measured by fMRI.
2. It describes how external interfaces like BCIs can record and stimulate neuron activity to restore lost functionality. BCIs can non-invasively record EEG maps or use implants to stimulate neurons.
3. It speculates that remote wireless devices could scan EEG maps using electromagnetic radiation, enabling covert abuse. Meditation changes neuron circuits and activity, strengthening neurocoherence.
Neural oscillations occur throughout the central nervous system and can be measured at different scales: microscopic (single neuron), mesoscopic (local groups of neurons), and macroscopic (between brain regions). At the microscopic level, neurons generate action potentials that form rhythmic spike trains. Groups of synchronized neurons give rise to local field potential oscillations. Interactions between brain areas also produce large-scale oscillations measured by EEG. Different neural oscillations are linked to cognitive functions like perception and memory.
This document discusses brainwaves (EEG), which are fluctuations in electrical potential produced by neurons firing in the brain. It describes how brainwaves can be measured via EEG and outlines the main brainwave frequencies (alpha, beta, theta, delta), their associated mental states, and significance. Stimulating different brainwave frequencies through techniques like neurofeedback and brainwave entrainment can help induce specific mental states and potentially treat disorders.
The document discusses various regions of the brain, including the cerebrum, cerebellum, Broca's area, parietal lobe, somatosensory cortex, occipital lobe, and temporal lobe. It describes the functions of each region, such as the cerebrum having control over every organ, the cerebellum providing smooth body movement, Broca's area producing language, and the somatosensory cortex processing sensory input from the body. The document also examines neurological structures and concepts like pyramidal cells, inhibitory control, and disinhibition circuits in the brain.
独中高中生物Chapter 13 Part 3 Peripheral nervous syste,Yee Sing Ong
- The peripheral nervous system (PNS) consists of nerves and ganglia outside the brain and spinal cord that relay signals between the central nervous system and the body. The PNS includes the somatic and autonomic nervous systems.
- The somatic nervous system controls voluntary body movements via skeletal muscles. The autonomic nervous system unconsciously regulates functions of internal organs through sympathetic and parasympathetic nerves.
- Sympathetic nerves dominate the "fight or flight" response while parasympathetic nerves dominate "rest and digest".
The document provides information about the major parts and functions of the human brain. It discusses the central nervous system (CNS) which includes the brain and spinal cord, as well as the peripheral nervous system (PNS) which includes nerves. The main sections and subsections of the brain are described in detail, including the cerebrum, cerebellum, brain stem, diencephalon, ventricles, and lobes. The roles and structures of these various brain regions are summarized.
1. Vertebrate nervous systems are divided into central and peripheral components. The peripheral nervous system interacts to maintain homeostasis.
2. The embryonic development of the vertebrate brain reflects its evolution from three anterior bulges of the neural tube forming the forebrain, midbrain, and hindbrain.
3. The human brain is divided into conscious and unconscious regions. The conscious regions include the cerebrum which is divided into four lobes. The unconscious regions include the brainstem and cerebellum which regulate vital functions and coordinate movement.
The document summarizes key aspects of brain structure and function in 3 paragraphs or less:
The brainstem controls automatic functions like breathing and heart rate. The cerebellum aids in movement coordination and balance. The limbic system processes emotions and memories. The cerebral cortex is the brain's control center, with different lobes having distinct functions - frontal lobe for planning, parietal for senses, occipital for vision, and temporal for hearing. Within the cortex, specialized areas control motor skills, language processing, and other cognitive abilities. The brain is plastic and can reorganize over time based on experiences. Sensory systems like vision, hearing, touch, taste and smell detect environmental inputs which the brain interprets as perceptions
The document provides an overview of the nervous system including:
1) It describes the two major divisions of the nervous system - the central nervous system (CNS) and peripheral nervous system (PNS).
2) It explains the functional anatomy of the CNS including structures like the brain, spinal cord, and various parts of the brain.
3) It details the functional anatomy of the PNS including cranial nerves, spinal nerves, nerve plexuses, and the autonomic nervous system.
1. The document discusses the structure and function of the nervous system, including the central nervous system (brain and spinal cord), peripheral nervous system, and the two main cell types of neurons and glial cells.
2. It describes how neurons are classified and structured, including the parts of neurons like the cell body, dendrites, and axon. Myelination of axons by glial cells affects impulse conduction speed.
3. Neurons conduct signals through electrical impulses called action potentials and chemical signaling at synapses using neurotransmitters. This allows for communication between neurons and integration of signals in the nervous system.
The nervous system is made up of neurons that transmit signals between different parts of the body. The basic unit is the neuron, which contains a cell body, dendrites that receive signals, and an axon that transmits signals. Neurons transmit signals through electrical and chemical processes. The nervous system is divided into the central nervous system (brain and spinal cord) and peripheral nervous system (nerves). The brain is the most complex part and is divided into the cerebrum, cerebellum, and brainstem. The cerebrum controls functions like learning, reasoning, and emotions. The nervous system allows for coordination of voluntary and involuntary body functions.
This document provides an overview of the nervous system including its anatomy and physiology. It discusses the central nervous system including the brain, spinal cord and meninges. It describes the peripheral nervous system including cranial nerves and autonomic nervous system. Key cells, structures and functions are defined including neurons, glial cells, neurotransmitters, blood brain barrier and cerebrospinal fluid.
The document provides information about neurons. It discusses that Dr. Suresh Kumar Murugesan is a professor of psychology from India. It then provides details about the typical structure of a neuron, including the dendrites, cell body, axon, axon terminals, and myelin sheath. Research on neurons aims to better understand neurogenesis and diseases like Alzheimer's and Parkinson's. The document outlines the basic functions of neurons in receiving signals, integrating information, and communicating signals to other cells.
This document discusses the biological basis of behavior, including the structure and function of neurons, neurotransmission, and the nervous system. It describes how neurons communicate via electrical and chemical signals to transmit information throughout the brain and body. Specifically, it outlines how neurons, glial cells, neurotransmitters, and the endocrine system all contribute to human behavior and psychological processes.
The document discusses the structure and function of the human nervous system. It describes how the nervous system is divided into the central nervous system (CNS) and peripheral nervous system (PNS). The CNS contains the brain and spinal cord, while the PNS connects them to sensory receptors and effector organs. The nervous system receives sensory input, integrates the information in the CNS, and sends motor responses through the PNS to coordinate body functions and maintain homeostasis.
The document discusses the human nervous system and its role in response and coordination. It describes:
1) The human nervous system collects information from internal and external stimuli, transmits it to processing centers in the brain and spinal cord, coordinates responses, and maintains homeostasis.
2) The brain is divided into the cerebrum, cerebellum, and brain stem. The cerebrum controls voluntary movement and complex cognitive functions while the cerebellum controls movement coordination and balance.
3) Neurons are the basic functional units of the nervous system, connecting the brain to receptors and effectors via electrically signaling axons surrounded by a myelin sheath for fast transmission.
lecture 5 from a college level introduction to psychology course taught Fall 2011 by Brian J. Piper, Ph.D. (psy391@gmail.com) at Willamette University, includes Golgi, Cajal, parts of the neuron, action potentials, synapse, neurotransmitters, agonist, antagonist, parts of the nervous system
F:\Biology Form 5\Chp 3 Coordination And Response\3 2 The Role Of The Human N...racheleasaw
The document summarizes the key roles and functions of the human nervous system. It discusses how the nervous system is organized into the central nervous system (CNS) and peripheral nervous system (PNS). The CNS includes the brain and spinal cord, which process sensory information, coordinate functions, and initiate motor responses. The PNS connects the CNS to receptors and effectors through nerves. Within the nervous system, neurons transmit signals as nerve impulses between the CNS, receptors, and effectors to coordinate senses, movement, and homeostasis.
The nervous system is composed of neurons and neuroglia. It detects stimuli through sensory neurons, processes information in the central nervous system, and responds through motor neurons. The central nervous system includes the brain and spinal cord. The brain is made up of the cerebrum, cerebellum, and brainstem. The peripheral nervous system connects the central nervous system to the body and is divided into the somatic, autonomic, and enteric systems. Neurons have a cell body, dendrites, and axon. The nervous system maintains homeostasis through detection of and response to stimuli.
The document provides an overview of the nervous system, including its organization, components, and functions. It discusses the central and peripheral nervous systems. The central nervous system contains the brain and spinal cord, and processes sensory information and motor output. The peripheral nervous system connects the central nervous system to the body and includes nerves, ganglia, and receptors. It also describes neurons, their structure and signaling processes, as well as neurotransmission and electrical signaling within the nervous system.
This document provides an introduction to brainwaves and brainwave entrainment. It describes the five main brainwave patterns (gamma, beta, alpha, theta, delta), their associated frequencies in Hertz, the mental and neural states and processes associated with each pattern. Each brainwave pattern is involved in different cognitive processes and states of consciousness, from high-frequency gamma waves during deep focus to low-frequency delta waves during deep sleep or meditation.
1. The document discusses neuron activation signals in the brain and how they relate to EEG oscillations and blood oxygen levels. Neuron activation produces changes in blood oxygenation that can be measured by fMRI.
2. It describes how external interfaces like BCIs can record and stimulate neuron activity to restore lost functionality. BCIs can non-invasively record EEG maps or use implants to stimulate neurons.
3. It speculates that remote wireless devices could scan EEG maps using electromagnetic radiation, enabling covert abuse. Meditation changes neuron circuits and activity, strengthening neurocoherence.
Neural oscillations occur throughout the central nervous system and can be measured at different scales: microscopic (single neuron), mesoscopic (local groups of neurons), and macroscopic (between brain regions). At the microscopic level, neurons generate action potentials that form rhythmic spike trains. Groups of synchronized neurons give rise to local field potential oscillations. Interactions between brain areas also produce large-scale oscillations measured by EEG. Different neural oscillations are linked to cognitive functions like perception and memory.
This document discusses brainwaves (EEG), which are fluctuations in electrical potential produced by neurons firing in the brain. It describes how brainwaves can be measured via EEG and outlines the main brainwave frequencies (alpha, beta, theta, delta), their associated mental states, and significance. Stimulating different brainwave frequencies through techniques like neurofeedback and brainwave entrainment can help induce specific mental states and potentially treat disorders.
The document discusses various regions of the brain, including the cerebrum, cerebellum, Broca's area, parietal lobe, somatosensory cortex, occipital lobe, and temporal lobe. It describes the functions of each region, such as the cerebrum having control over every organ, the cerebellum providing smooth body movement, Broca's area producing language, and the somatosensory cortex processing sensory input from the body. The document also examines neurological structures and concepts like pyramidal cells, inhibitory control, and disinhibition circuits in the brain.
1) The study tested the effects of meditation and caffeine on short-term memory and brain wave activity.
2) Results showed meditation improved short-term memory test scores but caffeine reduced scores compared to a control group.
3) Brain wave analysis found meditation and caffeine decreased beta and gamma wave amplitudes compared to the control during memory tasks, suggesting both may impact brain activity related to memory.
This document summarizes a study on analyzing EEG signals during meditation using wavelet transforms. It begins by providing background on meditation and EEG signals. It then discusses previous research showing meditation affects physical and mental relaxation. The study aims to analyze changes in EEG signals during meditation using wavelet transforms, as EEG signals are non-stationary and nonlinear. It describes collecting EEG data from subjects during meditation and non-meditation, and using Daubechies wavelets to decompose the signals into frequency bands. The study will calculate statistical parameters of the frequency bands to analyze differences in EEG signals during meditation versus non-meditation states.
The document discusses the extirpation method for determining the function of parts of the brain. The extirpation method involves removing or destroying a part of the brain and observing the resulting changes in behavior. The document then describes several techniques used in extirpation experiments, including different levels of the central nervous system where extirpation can be done, local damage methods, stimulation methods, and various recording techniques like EEG.
The document discusses the connection between music and the brain from multiple perspectives. It describes how music engages different parts of the brain, including the cortex, limbic system, brainstem, and various neurotransmitters. Music is shown to affect brain areas involved in emotion, memory, movement, and other cognitive functions. Research demonstrates that the brain can change and develop new connections in response to musical training and experience.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
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The Human Body Is Complex, And All HumansLisa Olive
The document discusses the complexity of the human brain, with a focus on the cerebral cortex. It explains that the cerebral cortex is made up of different lobes - the frontal, parietal, occipital, and temporal lobes - each of which has distinct functions like planning, sensory processing, vision, and memory. The largest and most complex part of the brain is the cerebrum, which is divided into left and right hemispheres connected by nerve fibers that allow communication between the two sides and coordinate bodily functions.
This article is a review of neurofeedback techniques in the broad context of various clinical implications. Authors presented the neurophysiological background of these developing methods in relation to the state-of-the-art techniques. The broad range of methods of neurofeedback were reviewed, comprising the transfer of information, automation, brain-computer interface, multichannel Z-Score neurofeedback and slow cortical potentials. Neurofeedback may be an effective tool for self-regulation, useful for achieving better selfknowledge and enhanced cognitive skills. A tailored, dedicated program, based on quantitative electroencephalographic (QEEG) assessment and/or Z-Score should be implemented for a given patient in order to gain trust and fulfill the compliance. The proven clinical benefits of multi-channel neurofeedback, targeting regulation of particular brain regions, or inducing specific neural patterns, may be an alternative method for treating diseases in a non-invasive, introspective way. Effective modulation of the physiological functions which may affect various neural mechanisms of cognition and behavior seems to be the future perspective of neurofeedback
Brain wave, neuroscience, brain activity, EEG technology, understanding brain waves
Understanding the complexities of the human brain has been a longstanding challenge for scientists and researchers. One fascinating aspect of studying the brain is analyzing its electrical activity, known as brain waves. These rhythmic patterns of neural activity provide valuable insights into various cognitive processes and emotional states.
The teacher asked the student which specific cognitive functions they would like to use brain oscillatory analysis to better understand. The student responded that they are interested in using it to study visual short-term memory and how oscillations change when mistakes are made on visual memory tasks.
Use of eeg signal for mental analysis of a PersonDipesh Pandey
EEG signals can be used to analyze a person's mental state. The document proposes using time-frequency domain analysis via Daubechies wavelet transform of EEG data and fuzzy c-means classification to determine a person's emotional state and detect any mental disturbances or abnormalities. This method is feasible with minimal costs and no reliance on specialized hardware. Testing of the method and documentation of results is planned over a proposed 11-week schedule. Accurate mental state analysis via EEG could help address serious mental health issues faced by many.
The document discusses electroencephalography (EEG) and summarizes an experiment on EEG waveforms. Key points:
1. An EEG measures electrical activity in the brain using electrodes placed on the scalp. It can detect abnormalities and monitor brain states.
2. The experiment stimulated EEG patterns on a subject under different conditions like eyes open/closed, blinking, movement, talking and sleep.
3. The EEG recordings showed different waveform patterns and brain activations depending on the subject's activity level and state. This demonstrated how EEG can interpret brain activity in real-time.
The document provides information about the nervous system. It discusses the central nervous system including the brain and spinal cord. The spinal cord contains gray matter with neurons and white matter with nerve fibers. The brainstem relays signals between the brain, spinal cord, and peripheral nervous system, controlling vital functions. The cerebellum coordinates motor control through integration of sensory input. The cerebrum is the largest part of the brain involved in higher functions like thinking, language, and memory. Diagrams and pictures are included to illustrate these structures.
The document discusses various methods used to study the human brain including postmortem studies, animal studies, and imaging techniques. Postmortem studies examine the brain after death to identify abnormalities associated with certain behaviors or conditions. Animal studies involve inserting microelectrodes into animal brains to monitor single neuron activity or selectively lesioning areas to observe functional deficits. Imaging techniques discussed include EEG, PET, fMRI and MRI which produce images of brain activity and anatomy. The document also outlines the main structures of the brain including the cerebral cortex, limbic system, midbrain, hindbrain and lobes.
The document discusses the relationship between the brain, music, and art. It notes that the left hemisphere processes information sequentially and rationally, while the right hemisphere is intuitive. Both hemispheres are interconnected and involved in different ways in music, art, and other activities. Later sections discuss specific areas of the brain involved in functions like language processing, memory, emotion, and more. It provides an overview of how music and art engage and impact different parts of the human brain.
The document proposes integrating EEG, fMRI, and transcranial magnetic stimulation technologies to create an audiovisual art piece solely based on an individual's brain activity and thoughts. This fusion of neuroscience and art could also have medical applications such as diagnosing motor and sensory disorders and enhancing or inhibiting specific brain activity. However, manipulating brain structures could alter memory and consciousness, so use of these technologies needs to be carefully monitored.
BRAIN MACHINE INTERFACE SYSTEM FOR PERSON WITH QUADRIPLEGIA DISEASEEditor IJCATR
Brain Machine Interface (BMI) system is very
helpful technique for the disabled and handicapped
person to express their emotion and feeling to someone
else with the help of EEG Signals coming out of our
brain. As we know that, the human brain is made up of
billions of interconnected neurons about the size of a
pinhead. As neurons interact with each other, patterns
manifest as singular thoughts such as a math calculation.
As a by-product, every interaction between neurons
creates a miniscule electrical discharge, measurable by
EEG (electroencephalogram) machines. This system
enables people with severe motor disabilities to send
command to electronic devices by help of their brain
waves. These signals can be used to control any
electronic devices like mouse cursor of the computer, a
wheel chair, a robotic arm etc. The research in this area of
BCI system (or BMI) uses the sequence of 256 channel
EEG data for the analysis of the EEG signals coming out
of our brain by using tradition gel based multi sensor
system, which is very bulky and not convenient to use in
real time application. So this particular work proposes a
convenient system to analyze the EEG signals, which
uses few dry sensors as compared to the tradition gel
based multi sensor system with wireless transmission
technique for capturing the brain wave patterns and
utilizing them for their application. The goal of this
research is to improve quality of life for those with severe
disabilities.
Similar to Estimate the Activation of EEG Bands from Different Brain Lobes with Classified Music Stimulation (20)
[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...Jason Yip
The typical problem in product engineering is not bad strategy, so much as “no strategy”. This leads to confusion, lack of motivation, and incoherent action. The next time you look for a strategy and find an empty space, instead of waiting for it to be filled, I will show you how to fill it in yourself. If you’re wrong, it forces a correction. If you’re right, it helps create focus. I’ll share how I’ve approached this in the past, both what works and lessons for what didn’t work so well.
"Choosing proper type of scaling", Olena SyrotaFwdays
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Estimate the Activation of EEG Bands from Different Brain Lobes with Classified Music Stimulation
1. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 101
Estimate the Activation of EEG Bands from Different Brain
Lobes with Classified Music Stimulation
Monira Islam monira_kuet08@yahoo.com
Department of Electrical and Electronic Engineering
Khulna University of Engineering & Technology (KUET)
Khulna-9203, Bangladesh
Md. Salah Uddin Yusuf ymdsalahu2@gmail.com
Department of Electrical and Electronic Engineering
Khulna University of Engineering & Technology (KUET)
Khulna-9203, Bangladesh
Chowdhury Azimul Haque c.azimulhaque@gmail.com
Department of Electrical and Electronic Engineering,
Khulna University of Engineering & Technology
Khulna-9203, Bangladesh
Abstract
Physiological research with human brain is getting more popular because it is the center of
human nervous system. Music is a popular source of entertainment in modern era which affects
differently in different brain lobes for having different frequency and pitch. The brain lobes are
divided into frontal, central and parietal lobe. In this paper, an approach has been proposed to
identify the activated brain lobes by using spectral analysis from EEG signal due to music evoked
stimulation. In later phase, the impact of music on the EEG bands (alpha, beta, delta, theta)
originating from different brain lobes is analyzed. Music has both positive and negative impact on
human brain activity. According to linguistic variation, subject age and preference, volume level of
songs, the impact on different EEG bands varies. In this work, music is categorized as mild, pop,
rock song at different volume level (low, comfortable and high) based on Power Spectral Density
(PSD) analysis. The average PSD value is 0.21 W/Hz, 0.32W/Hz and 0.84W/Hz for mild, pop and
rock song respectively. The volume levels are considered as 0%-15% volume level for low
volume, 16%- 55% volume level for comfortable volume and 56%-100% volume level for high
volume. At comfortable volume level the central lobe of the brain is more activated for mild song
and parietal lobe is activated for both pop and rock songs based on logarithmic power and PSD
analysis. A statistical test two- way ANOVA has been conducted to indicate the variation in EEG
band. For two-way ANOVA analysis, the P-value was taken as 0.05. A topographical
representation has been performed for effective brain mapping to show the effects of music on
the EEG bands for mild, pop and rock songs at the mentioned volume level. The maximum
percentage of alpha band activation is 60% in comfortable volume which decreases with high
volume and it indicates that, when the music stimuli moved towards the high-volume level, human
cognition state moves from relax to stress condition due to the activeness of beta band. A
Graphical User Interface (GUI) has been designed in MATLAB platform for the entire work.
Keywords: EEG, Spectral Analysis, ANOVA, Topography, Graphical User Interface.
1. INTRODUCTION
Human brain controls human Central Nervous System (CNS) that assimilates all data, minimal
and re-wires existing information and incorporates all into a steady affair. The intricacies of
human brain can be realized by identifying the activated brain region at different environmental
condition. According to anatomical perspective brain can be sub-divided into three regions:
2. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 102
FIGURE 1: Structure of Human Brain and Its Lobes [5].
The Cerebrum, the Cerebellum and the Brain-stem. The largest part of the brain is cerebrum or
cortex. Active thinking, action taking and control are associated with the cortex. It consists of two
hemispheres: Left and Right. Moreover, the cerebral cortex is made of with four lobes i.e.,
occipital, temporal, parietal, frontal lobe. Occipital lobe responsible for visual processing of the
brain. It is also associated with colour. Long term memory, language comprehension, processing
and production are associated with temporal lobe [1]. All the information that brain absorbs are
being integrated in parietal lobe. Motor behaviour and object-oriented actions are associated with
this lobe. Frontal lobe is responsible for most active thinking of the brain and it is associated with
short-term memory, planning and motivation [2]. The Cerebellum is responsible for regulation and
control of fine movements, posture and balance. 80% of brain neurons are held by this portion of
the brain. The Brainstem is the posterior part of the brain and older, comprising the midbrain,
pons and medulla. It houses many of the control centres for important body functions such as
breathing, bladder functions and vasomotor control [3]. With phylogenetically old limbic, other
subcortical structures and their connections the Limbic system is formed and it deals with three
key functions i.e., emotions, memories and arousal [4]. Figure 1 indicates the structure of the
brain and its lobes.
Electroencephalogram or EEG is a measuring tool for analysing intricate activity of brain signal
that is generated by millions of brain neurons [6]. EEG signal is related with brain regions or lobes
and it can directly measure the neural activity. EEG consists of five frequency band: Delta band,
Theta band, Alpha band, Beta band and Gamma band [7]. The oscillation of the brain within
range 0.5Hz–4Hz is considered as delta band. Delta band is associated with deep
unconsciousness, intuition and insight. Delta waves are normally located in frontal lobe of the
adults and for children, located in posterior portion of the brain. Theta band is associated with
deep meditation and it ranges from 4 Hz to 8 Hz. These waves are generated from thalamic
region of the brain. Alpha waves are considered as the wave of active thinking and it ranges from
8 Hz to 13 Hz. Alpha waves are generated from left Parietal lobe or right/left Occipital lobe and
responsible for the cognitive activity at relax state. Beta band ranges from 14 Hz to 30 Hz and is
responsible for awaken state specially indicates the mental loading or stress. Beta bands are
generally produced from frontal and parietal lobe. Gamma band ranges above 30 Hz and it is
considered as the waves of abnormal condition. These types of waveforms can be generated
from somatosensory cortex during abnormal behaviour of brain. Table 1 shows different bands of
the EEG signal and their corresponding frequency with generation region [8].
In this work, music stimuli have been selected with their different genre and pitch to show the
indication of brain relaxation or stress level. EEG band which originates from brain regions also
get affected by the different types of music stimulation. Pituitary adrenal-cortical hub and the
thoughtful adrenal-medullary pivot and the psychological exhibitions are influenced in the wake of
listening songs [9], [10]. Cerebrum signal which is named as electroencephalogram (EEG) can be
differed by change in neurons and neurotransmitters movement by listening songs [11]. Electrons
stream when there is an adjustment in cerebrum movement and this action produces signal and
estimating strategy of these signs should be possible by electroencephalogram. Every one of
3. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 103
Band
Frequency
Range (Hz)
State Location
Delta 0.5 - 4 Deep sleep Frontal and posterior regions
Theta 4 - 8 Light sleep
Just above the brain stem between
cerebral cortex and midbrain
Alpha 8 - 13 Relax state with eyes open Posterior regions
Beta 13 - 30 Alert, active, awake state Frontal and parietal lobes
Gamma Above 30 Abnormal condition Somatosensory cortex (Central brain)
TABLE 1: Different bands of EEG signal and their corresponding frequency range and location.
song has its own frequency range as indicated by which songs can be characterized. Distinctive
frequency range or diverse volume level of songs affects diverse brain region. In this paper,
actuated mind district is distinguished while tuning in to various sorts of songs at various volume
levels.
Many research works are done showing that different types of songs have different effects on the
brain. EEG responses of human brain during listening to different music were studied by
Independent Component Analysis (ICA) in [12]. The level of enjoyment during music listening is
studied by calculating cross-correlation between sound stimuli and EEG signals and a
topographical analysis is presented in [13].The effect of music on central nervous system (CNS)
from EEG signal using average mutual information and phase-space reconstruction of the signal
is experimented in [14].EEG band variation during musical stimuli has been determined by band
symmetry, sample entropy and statistical analysis [15]. Authors in [16] had investigated the
signatures of EEG by calculating power spectral density of EEG bands for two different music
phrases. While listening to passive unconstrained music, the frequency bands of EEG are
increased in power level [17]. Many studies have claimed that music stimuli can activate alpha
band or beta band. In [18], authors had stated that a relax music stimuli can activate alpha band
by reducing the beta band and it is analysed by independent component analysis. In [19], authors
have estimated the activation of different EEG bands during listening to different songs which
have been categorized according to their PSD value. In this research work, the three types of
music mild, pop, rock are categorized based on their power spectra and their impact on brain are
analyzed. These three types of songs have enormous effect on EEG bands. These bands effects
are analysed with statistical approach, ANOVA and topographical approach is implied for brain
mapping. The block diagram of the proposed approach is shown in FIG. 2. In this paper, Section
2 describes the methodology of the proposed work. Result and Discussion is shown in Section 3
and Section 4 concludes the result.
FIGURE 2: Proposed Workflow Diagram of This Research.
4. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 104
2. METHODOLOGY
It is important to process the raw signal for analysis and to identify the activated brain regions
with different types of music. Spectral analysis is being performed to extract power spectral
density and logarithmic power of raw EEG signal in different brain regions according to which
brain activation regions can be identified.
2.1 Song Selection and Subject Preparation
The selected songs for this study were categorized into three types: Mild, Pop, and Rock based
on their mean PSD value. The songs could be also categorized on the basis of their frequency
spectrum where the PSD is a major component of frequency spectrum [20]. For each type of
song ten examples i.e., total thirty songs were considered to determine their power spectral
density. Each song was trimmed in 60 seconds length. Power spectral density of each type of
songs is almost similar i.e., for ten pop songs, the values are almost same which is easily
noticeable from their value of standard deviations. The mean power spectral density (PSD) value
has been shown in Table 2. These songs were used as stimuli for EEG data acquisitions.
2.2 Data Acquisition Protocol
In this study, for the EEG data acquisition 9 channel B-Alert X-10 wireless system [21] has been
used that acquires EEG data from three major parts of the brain i.e., frontal, central, and parietal
lobe. This system covers the F3, Fz, F4, C3, C4, Cz, P3, Poz, and P4 positions according to the
international 10/20 system. Different regional data of brain is collected by the help of positioning
the electrodes in the frontal, central and parietal lobe. There were 38 volunteers participated in
this data acquisition having no psychological and hearing disorder and the experimental room
was quite calm and air-conditioned. The participants were verbally informed about the data
acquisition protocol and their written consent regarding data acquisition was collected before data
acquisition. It is also confirmed by the author that during data acquisition period no violation of
Helsinki Principle was occurred [22]. Three types of songs (Mild, Pop, Rock) were selected for the
hearing stimuli. The songs were classified on the basis of their power spectral density. Each type
of song has three trials and they were of averagely 60 seconds long. Before data acquisition for
the concerned stimuli the EEG signal of relaxed state with eyes closed was recorded for each
participant as control. During data acquisition the participant was sitting on non-movable chair
with the eyes closed to avoid the artifacts regarding eye movement during EEG signal collection.
Therefore, the total data acquisition procedure is shown in FIG. 3. Figure 4 shows the recorded
EEG signal with 9 channels B-Alert X10.
2.3 Data Filtering and Removal of Noise
B-Alert X-10, Acknowledge 4.1, MATLAB 2018a are used for data acquisition, analysis, storage,
and retrieval of the acquired signal. In data processing session several steps have been taken to
process the recorded data. Different types of filter such as notch filter, elliptic filter have been
used for filtering purpose. For the preliminary processing the recorded data have been filtered by
a stop band which is also known as Notch filter. A notch filter with tunable notch frequencies can
be designed to process a signal [23]. Elliptic filtering has been used to extract different EEG
bands from the raw EEG signal.
FIGURE 3: Proposed Approach for EEG Signal Recording.
END
Control Data Record
with eyes closed
(60 Seconds)
60 seconds song
with low Volume
(Trial 1)
60 Seconds
RestSTART
60 seconds song
with comfortable
Volume (Trial 2)
60 Seconds
Rest
60 Seconds
Rest
60 seconds song with
High Volume
(Trial 3)
5. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 105
FIGURE 4: Recorded EEG Signal with 9 Channels B-Alert X10.
By using notch filter the noise of the signal can be eliminated. Eq. (1) expresses the transfer
function of the notch filter.
( )
( )
= (1)
After notching, the filtered data were used in next processing step. Elliptic filter was used for
extracting the bands of the EEG signal i.e., Alpha, Beta, Theta, Delta and Gamma band. An
elliptic filter offers to adjust the ripple for both pass-band and stop-band and it is characterized by
fastest transition between pass-band. Eq. (2) expresses the gain (Gn) of a lowpass elliptic filter as
a function of angular frequency ω.
( ) =
( )
(2)
Where, is the nth
order elliptic rational function, is the cut-off frequency, is the selectivity
factor and is the ripple factor.
2.4 Spectral Analysis
For spectral analysis of multi-channel Signal, it is important to filter the signal and artefacts should
be removed [24]. Spectral analysis reflects the analysis of a signal in frequency domain and in
frequency domain analysis frequency spectrum of a signal indicates the frequency component of
a signal. Among all frequency domain analysis Power spectral density (PSD) ensures a strong
measurement in calculating the signal power versus frequency. The amplitude of the PSD is
normalized by the spectral resolution employed to digitize the signal. Moreover, it indicates how a
power of a signal is distributed over frequency. If the signal is divided into frequency components,
power spectral density calculation turns into another process. Power spectral density of on-sided
frequency domain signal can be expressed as Eq. (3) [20].
( ) =
( )
| |
(3)
Where, integration limit sets from 0 to Q (on-sided frequency domain) according to fast Fourier
transform and the calculation is in the time range of t2 to t1. P (x) is the function of frequency
components of harmonic number r. Non-parametric methods find the autocorrelation sequence
and power spectral density can be calculated by transforming the signal into frequency by fast
Fourier transform. Sequence function can be expressed as Eq. (4).
( ) = ( + ); = 0, 1, 2, … . − 1; ℎ = 0, 1, 2, … . − 1. (4)
6. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 106
Where, ( ) the information sequence for calculating power spectral density, np is the start of
the sequence and 2q represents data segment that are formed from the r length data [20]. In this
research 256 samples are considered as calculating the power spectral density.
Logarithmic power calculates the overall power of a signal. This power is considered as regional
power of the brain in this study. To calculate the logarithm of the power, it is necessary to
calculate the power of each EEG band. The band power of frontal, parietal and central lobe has
been calculated as logarithm of the mean power of the recorded EEG signal.
= ∑ (5)
Where, is magnitude of pth
frequency band of the nth
sample, N is the number of samples,
is power in a specified frequency band.
3 RESULT AND DISCUSSION
3.1 Spectral Analysis of the Music Stimuli
For music stimuli, different songs have been categorized in three major types: Mild, Pop, and
Rock based on their spectral analysis and the values of power spectral density. From their
spectral analysis, difference between their genre can be identified. Their average PSD values and
variation based on their power spectral density has been shown in Table 2. These songs have
been listened by the participants in three different volume: low (0%-14% volume level),
comfortable (15%-60% volume level) and high (61%-100% volume level).
Song PSD Value (Watts per Hertz)
Mild 0.1214 – 0.2814
Pop 0.3172 – 0.3632
Rock 0.7448 – 0.9446
TABLE 2: The categories of the songs according to their mean power spectral density range.
3.2 EEG Band Activation in Different Brain Region
EEG signal usually classified according to their frequency, amplitude as well as the position of
electrodes on the scalp. Recorded EEG signal after filtering phase is used to calculate the
logarithmic power. Total recorded signal has been divided into three parts on the basis of their
collection region of brain. For three different regions of the brain: frontal, central and parietal lobe
logarithmic power was calculated. Table 3 shows the normalized values of logarithmic power of
EEG signals that have been extracted from three brain regions. The participants have heard the
songs in three different volume levels. When the volume level was less than 15%, there was no
consistency in values of logarithmic power of brain lobes for the three types of song. For a
Volume
level
MILD POP Rock
Frontal Central Parietal Frontal Central Parietal Frontal Central Parietal
Less
than
15%
1.714 1.694 1.630 1.345 1.697 1.686 1.589 1.534 1.596
1.652 1.556 1.591 1.513 1.961 1.916 1.494 1.435 1.486
1.716 1.611 1.668 1.186 1.531 1.437 1.397 1.479 1.432
16% to
55%
1.523 2.296 1.219 1.577 1.003 1.535 1.469 1.280 1.427
1.342 2.202 1.186 2.455 1.053 2.338 1.575 1.234 1.472
1.0405 2.179 1.548 1.736 1.140 1.655 1.839 1.725 1.806
Above
56%
1.588 1.689 1.684 1.589 1.627 1.666 1.643 1.642 1.648
1.698 1.545 1.595 1.811 2.014 2.053 1.551 1.601 1.686
1.543 1.668 1.697 1.653 1.713 1.722 1.530 1.576 1.631
TABLE 3: Logarithmic power of EEG signal collected from three brain region
(Data for three subjects have been shown).
7. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 107
volume level under 15% it is difficult to hear the songs and it will create a stress on the brain.
Therefore, no particular brain region is dominating for the signal which was collected keeping the
volume level under 15%. For the volume level within the preferable limit, i.e., volume level ranges
from 16% to 55%, the logarithmic power indicated that central lobe data is activation is higher for
mild songs. But for the pop and rock songs it is found that parietal lobe is dominating the other
lobes. Above 56% of volume level, the results are found as non-consistent for different subjects.
So, in this research the volume level is selected between the range 16%-55% for brain activation
analysis because it is the preferable sound range for the subjects.
3.3 Brain Lobes Activity Identification with PSD
The power spectral density (PSD) then refers to the spectral energy distribution that would be
found per unit time, since the total energy of such a signal over all time would generally be
infinite. This method is applied in order to selectivity represent the EEG signal extracted from
three brain regions. PSD calculates autocorrelation sequence which is found by nonparametric
methods. PSD values of recorded EEG signal during hearing the mild, rock and pop music are
shown in Table 4. Central lobe is more activated for mild songs and Parietal lobe activation is
more for both pop and rock songs. From the results of PSD, the activation of brain region
supports the logarithmic band power.
Trial
MILD POP Rock
Frontal Central Parietal Frontal Central Parietal Frontal Central Parietal
1 0.125 0.203 0.166 0.206 0.139 0.204 0.188 0.142 0.186
2 0.156 0.179 0.141 0.170 0.143 0.162 0.232 0.130 0.213
3 0.304 0.698 0.567 0.219 0.161 0.190 0.245 0.23 0.232
4 0.347 0.420 0.331 0.254 0.329 0.365 0.252 0.305 0.325
5 0.202 0.239 0.227 0.354 0.316 0.348 0.269 0.330 0.310
6 0.319 0.438 0.386 0.400 0.385 0.330 0.341 0.305 0.317
7 0.371 0.443 0.347 0.184 0.145 0.172 0.406 0.398 0.399
8 0.198 0.266 0.200 0.194 0.125 0.193 0.365 0.350 0.335
9 0.242 0.285 0.229 0.126 0.111 0.124 0.190 0.182 0.178
TABLE 4: Power Spectral Density (W/Hz) of different brain regions while listening different music at
comfortable volume (16% - 55%) level.
FIGURE 5: Bar plot of average PSD value of brain regions while listening different songs at comfortable
volume.
3.4 Topological Representation
Topographical representation has been performed for brain-mapping which actually indicates the
activation of EEG bands in different brain lobes during listening to the mild, pop and rock songs at
different volume level. In this paper, alpha band activity has been shown for different brain lobes.
It indicates if alpha band is more activated for different songs and at different brain lobes then
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Frontal
Central
Parietal
Frontal
Central
Parietal
Frontal
Central
Parietal
MILD POP Rock
8. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 108
stress level of the brain is less so beta band activation is less and alpha band activation is less
then beta band is more activated, so stress level increases at different brain lobes. The
percentage of alpha band activation at different brain lobes for different songs at different volume
level is shown in Table. 5. The activation of alpha band for mild songs at different volume level is
shown in FIG.6. It is shown that at comfortable volume level alpha band is most effective in
central region of the brain which is 56% of the total brain. The activation of alpha band for pop
songs at different volume level is shown in FIG.7. It is shown that at comfortable volume level
alpha band is most effective in frontal region of the brain which is 51% of the total brain. The
activation of alpha band for pop songs at different volume level is shown in FIG.8. It is shown that
at comfortable volume level alpha band is most effective in frontal region of the brain which is
47% of the total brain.
Volume level
MILD POP Rock
Frontal Central Parietal Frontal Central Parietal Frontal Central Parietal
Less than 15% 52% 30% 18% 30% 48% 22% 38% 43% 19%
16% to 55% 15% 56% 29% 51% 35% 14% 47% 31% 22%
Above 56% 34% 45% 21% 30% 16% 54% 38% 15% 47%
TABLE 5: Percentage of alpha band activity in brain lobes for the songs at different volume level.
FIGURE 6: Brain mapping through topographical representation for estimating alpha band activity of mild
song at (a) comfortable, (b) low, (c) high volume.
FIGURE 7: Brain mapping through topographical representation for estimating alpha band activity of pop
song at (a) comfortable, (b) low, (c) high volume.
3.5 Statistical Analysis
A two-way ANOVA (Analysis of variance) is conducted to find the significant variations of EEG
signal among the EEG bands with respect to the comfortable and high-volume level. ANOVA is a
way to find out the significance of the experiment results by dividing the values into two groups.
Here one group variable is the lobes (Frontal, Central, and Parietal) and the other group is
prepared with the corresponding log power values of the regarding stimuli. The same analysis
was performed on the PSD values of the EEG signal. The significance level was set to 0.05 and if
the P-value of the test greater than the significance level there is no variation in the results. From
the results, it is found that both the values of log power and PSD had the significant variations in
the three lobes. The variations were found for the alpha and beta bands.
9. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 109
FIGURE 8: Brain mapping through topographical representation estimating alpha band activity of rock song
at (a) comfortable, (b) low, (c) high volume.
When the participants were listening to mild songs in medium volume level, the variation in alpha
band ( (2,8) = 3.9, 5.02; − < 0.05) has been found. The variation in beta band
( (2,8) = 5.13, 6.07); − < 0.05) has been also found in the experiment. These
variations denote that, there is a difference between the effects when a subject listens the mild
songs in low and in comfortable volume. In addition, there is a significant variation for both pop
and rock songs in lobe to lobe and volume level to volume level difference. Table 7 and Table 8
shows the detail information of F-values and P-values of the corresponding band for log power
and PSD values respectively. Table 8 shows the property variations of different EEG bands
among the low and comfortable volume level as well as high and confortable volume level. The F-
value denotes the interaction which is basically used for establishing relationship between factor
and significance level. From the entire discussion for the ANOVA test result it can be stated that,
there is a variation between in EEG bands while listening to different songs at different volume.
Song Type Bands F values (2,8) P values
Mild
Alpha F (2,8) =3.9, 5.02 0.0416, 0.003
Beta F (2,8) = 5.13, 6.07 0.0189, 0.0011
Delta F (2,8) = 0.79, 2.24 0.4696, 0.0816
Theta F (2,8) = 1.7, 6.71 0.2134, 0.0006
Pop
Alpha F (2,8) = 8.91, 14.59 0.006, 0.0003
Beta F (2,8) = 4.68, 2.46 0.0368, 0.1054
Delta F (2,8) =2.49, 2.56 0.1328, 0.0963
Theta F (2,8) = 3.08, 33.02 0.0907, 0
Rock
Alpha F (2,8) = 16.82, 17.26 0.0006, 0.0001
Beta F (2,8) = 2.49, 1.11 0.1323, 0.4139
Delta F (2,8) = 0.48, 2.79 0.6332, 0.0784
Theta F (2,8) = 1.32, 13.48 0.3097, 0.0004
TABLE 7: ANOVA test result for log power for EEG bands (Variation in Lobe to Lobe).
3.6 Graphical User Interface (GUI) Design
A Graphical User Interface (GUI) has been developed using AppDesigner in MATLAB 2018a to
show the entire work in a single frame. The GUI has been designed for the multiple songs input
which can be randomly selected from the source and they will be categorized according to their
PSD value.
In FIG. 9 GUI popup menu has been shown. The categorization of the songs and their
corresponding EEG data, topographical representation, PSD value, logarithmic power has been
shown in FIG.10 and 11 respectively. In FIG. 12 ANOVA test result between alpha and beta band
has been extracted by GUI.
10. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 110
Song Type Bands F values (2,8) P values
Mild
Alpha F (2,8) =7.06, 9.75 0.0122, 0.0013
Beta F (2,8) = 9.31, 20.7 0.0052, 0.0001
Delta F (2,8) = 1.02, 2.31 0.3964, 0.1214
Theta F (2,8) = 0.64, 1.97 0.5474, 0.1684
Pop
Alpha F (2,8) = 13.57, 1.3 0.0014, 0.3368
Beta F (2,8) = 17.64, 5.24 0.0005, 0.0128
Delta F (2,8) =1.53, 5.71 0.2631, 0.0096
Theta F (2,8) = 12.22, 10.07 0.0021, 0.0012
Rock
Alpha F (2,8) =23.32, 4.3 0.0002, 0.0239
Beta F (2,8) = 5.16, 2.04 0.0289, 0.1577
Delta F (2,8) = 0.01, 3.16 0.9865, 0.0390
Theta F (2,8) = 5.98, 4.17 0.0196, 0.0262
TABLE 8: ANOVA test result for power spectral density of EEG bands.
FIGURE 9: GUI Popup Menu.
FIGURE 10: Categorization of The Songs with PSD Analysis.
11. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 111
FIGURE 11: Song categorization, PSD value and corresponding alpha band and brain-mapping for mild
song at low volume.
FIGURE 12: ANOVA test result of the EEG signal for the selected mild song between alpha and beta band.
4 CONCLUSION
This work states the effect of mild, rock and pop songs on different bands of EEG signal which
have been categorized according to their power spectral density. The correlation coefficient
varies from 0.0318 to 0.048 which indicates that there exists largest variation among different
types of songs which affects differently on individual EEG bands. The average PSD values for
mild, pop, rock songs are 0.2114, 0.3272 and 0.8448 W/Hz respectively. Raw EEG signals of the
subjects were collected at three different volume levels which were less than 15%, 16% to 55%
and above 56% by B-alert X-10. Tunable notch filter is being used for signal filtering which is
passed through an elliptic filter for extraction of individual EEG bands. A two-way ANOVA was
designed to investigate significant variation among the bands. Brain-mapping has been
performed for the topographical representation. While listening songs at comfortable volume level
(15%-60%), largest variation is observed for alpha band which is 60%, 52%, 45% for mild, pop
and rock songs respectively which keeps the subject relax while for lower or highest volume level
the activation region of alpha band decreases and beta band gets more activated which keeps
12. Monira Islam, Md. Salah Uddin Yusuf & Chowdhury Azimul Haque
International Journal of Computer Science and Security (IJCSS), Volume (13) : Issue (3) : 2019 112
the subject more stressed. So, this is an innovative approach to indicated the activity of different
EEG bands while listening songs which will play a significant role in physiological research area
of human cognition. This study proposed a dynamic approach to identify the activated brain
region for different songs. Spectral analysis is done to extract power spectral density and
logarithmic power at different lobes. For the sound volume level less than 15%, there was no
consistency in result to identify active brain region for different subjects. For the volume level
between 16% and 55%, consistent result is found. In this volume level, central lobe of the brain is
activated for mild songs and parietal lobe is activated for both pop and rock songs. From this
study, it can be concluded that brain response to different songs affects human brain lobes
differently with different sound level and different song category. A Graphical User Interface (GUI)
has been successfully designed to extract all the features that requires in this thesis in a single
frame.
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