IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... Rhythmic brain activity: EEG rhythms are associated with various physiological and mental processes. The alpha rhythm is the principal resting rhythm of the brain, and is common in wakeful, resting adults. Auditory and mental arithmetic tasks with the eyes closed lead to strong alpha waves, which ar ...
... Rhythmic brain activity: EEG rhythms are associated with various physiological and mental processes. The alpha rhythm is the principal resting rhythm of the brain, and is common in wakeful, resting adults. Auditory and mental arithmetic tasks with the eyes closed lead to strong alpha waves, which ar ...
Integrative actions of the reticular formation The reticular activating
... (1949), end Linds~y (1950) demonstrated that midbrain destruction involving only the R.F., produced continuous sleep or coma and such cats could not be aroused. Transection of the midbrain, sparing only the R.F., preserved the aroused state. Numerous authors have mapped brain stem areas from which e ...
... (1949), end Linds~y (1950) demonstrated that midbrain destruction involving only the R.F., produced continuous sleep or coma and such cats could not be aroused. Transection of the midbrain, sparing only the R.F., preserved the aroused state. Numerous authors have mapped brain stem areas from which e ...
Anatomy of spinal cord
... neuroglia and blood vessels. White color is due to high proportion of myelinated nerve fibers The white matter of the spinal cord is arranged in columns/funiculi; anterior, posterior and lateral. The nerve fibers are arranged as bundles, running vertically through the cord. A group of nerve ...
... neuroglia and blood vessels. White color is due to high proportion of myelinated nerve fibers The white matter of the spinal cord is arranged in columns/funiculi; anterior, posterior and lateral. The nerve fibers are arranged as bundles, running vertically through the cord. A group of nerve ...
PDF - Oxford Academic - Oxford University Press
... the center of them was 1 cm apart. The stimulus was double pulses at 100 Hz with 0.5 ms duration and the stimulus intensity was three times that of the sensory threshold (1.4 ± 0.2 mA) in each subject. Clear tactile sensations were elicited without any painful sensations using these stimulus paramet ...
... the center of them was 1 cm apart. The stimulus was double pulses at 100 Hz with 0.5 ms duration and the stimulus intensity was three times that of the sensory threshold (1.4 ± 0.2 mA) in each subject. Clear tactile sensations were elicited without any painful sensations using these stimulus paramet ...
神经系统传导通路
... ①The injury of retina can induce visual field defect, which is related to the position and scope of injury; ②The optic nerve injury of ones side can induce absolute blindness of this eye； ③The lesion of decussating fiber of chiasm opticum can induce the half blindness in temple side of binocular vis ...
... ①The injury of retina can induce visual field defect, which is related to the position and scope of injury; ②The optic nerve injury of ones side can induce absolute blindness of this eye； ③The lesion of decussating fiber of chiasm opticum can induce the half blindness in temple side of binocular vis ...
control of movement by the CNS - motor neurons found in anterior
... finite set of cardinal synergies, which can be combined and weighted - coding direction of reach many cortical columns contribute to generation of reach each will be active for reaches over a range of directions one direction coded by ratio of activity across the pop. of neurons (population coding) ...
... finite set of cardinal synergies, which can be combined and weighted - coding direction of reach many cortical columns contribute to generation of reach each will be active for reaches over a range of directions one direction coded by ratio of activity across the pop. of neurons (population coding) ...
Responses to Rare Visual Target and Distractor Stimuli Using Event
... Lance Bauer. Responses to rare visual target and distractor stimuli using event-related fMRI. J. Neurophysiol. 83: 3133–3139, 2000. Previous studies have found that the P300 or P3 event-related potential (ERP) component is useful in the diagnosis and treatment of many disorders that influence CNS fu ...
... Lance Bauer. Responses to rare visual target and distractor stimuli using event-related fMRI. J. Neurophysiol. 83: 3133–3139, 2000. Previous studies have found that the P300 or P3 event-related potential (ERP) component is useful in the diagnosis and treatment of many disorders that influence CNS fu ...
Lesson Plan - University of Washington
... even though they can’t actually make the intended movement. However, since we know what the inputoutput relationship is between neural activity and movement, we can use the recorded neurons to artificially create the encoded movement. This is the basis for neural engineering; understanding the relat ...
... even though they can’t actually make the intended movement. However, since we know what the inputoutput relationship is between neural activity and movement, we can use the recorded neurons to artificially create the encoded movement. This is the basis for neural engineering; understanding the relat ...
LO #1
... LO #6. Describe how temporal and spatial summation of synaptic potentials affect postsynaptic responses (continued). Temporal And Spatial Summation A typical central nervous system (CNS) neuron can receive input from several thousand presynaptic neurons (a phenomenon called convergence) and can sen ...
... LO #6. Describe how temporal and spatial summation of synaptic potentials affect postsynaptic responses (continued). Temporal And Spatial Summation A typical central nervous system (CNS) neuron can receive input from several thousand presynaptic neurons (a phenomenon called convergence) and can sen ...
Vagal Input to Lateral Area 3a in Cat Cortex
... Seven cats of either sex weighing 2.4 – 4.5 kg were used; three were anesthetized with chloralose and four with alphaxolone/alphadolone (Saffan, Glaxo). Chloralose anesthesia (60 mg/kg iv) was preceded by ketamine (50 mg im) and supplemented with intravenous pentobarbital sodium as necessary. Animal ...
... Seven cats of either sex weighing 2.4 – 4.5 kg were used; three were anesthetized with chloralose and four with alphaxolone/alphadolone (Saffan, Glaxo). Chloralose anesthesia (60 mg/kg iv) was preceded by ketamine (50 mg im) and supplemented with intravenous pentobarbital sodium as necessary. Animal ...
Nervous System Part 6
... Spinal Nerves There is a pair of spinal nerves at the level of each vertebrae for a total of 31 pairs Spinal nerves are formed by the combination of the ventral and dorsal roots of the spinal cord Spinal nerves are named for the region from which they arise ...
... Spinal Nerves There is a pair of spinal nerves at the level of each vertebrae for a total of 31 pairs Spinal nerves are formed by the combination of the ventral and dorsal roots of the spinal cord Spinal nerves are named for the region from which they arise ...
NAlab08_DescMotor
... cerebellum (see cerebellar laboratory). The rostral portion of the red nucleus is the parvocellular division; the caudal portion, the magnocellar division C-5 Parasagittal section through the brain stem and cerebellum following injection of wheat germ agglutinin conjugated with HRP (HRPWGA) in red n ...
... cerebellum (see cerebellar laboratory). The rostral portion of the red nucleus is the parvocellular division; the caudal portion, the magnocellar division C-5 Parasagittal section through the brain stem and cerebellum following injection of wheat germ agglutinin conjugated with HRP (HRPWGA) in red n ...
Descending Motor Pathways Objective • To learn the functional
... cerebellum (see cerebellar laboratory). The rostral portion of the red nucleus is the parvocellular division; the caudal portion, the magnocellar division C-5 Parasagittal section through the brain stem and cerebellum following injection of wheat germ agglutinin conjugated with HRP (HRPWGA) in red n ...
... cerebellum (see cerebellar laboratory). The rostral portion of the red nucleus is the parvocellular division; the caudal portion, the magnocellar division C-5 Parasagittal section through the brain stem and cerebellum following injection of wheat germ agglutinin conjugated with HRP (HRPWGA) in red n ...
Electrical membrane properties of rat subthalamic neurons in an in
... deviated downwards from the linearity at higher frequencies. Z~s can be seen from the graph, the STH neuron could fire at the maximum frequency of about 500 Hz (Fig. ?B). The I - f curve obtained from the last interspike interval was almost linear up to 200 Hz and reached its peak at over 300 Hz. Th ...
... deviated downwards from the linearity at higher frequencies. Z~s can be seen from the graph, the STH neuron could fire at the maximum frequency of about 500 Hz (Fig. ?B). The I - f curve obtained from the last interspike interval was almost linear up to 200 Hz and reached its peak at over 300 Hz. Th ...
Motor Cortex
... somatosensory map, with a large representation of the hand and face. These large representations permit fine control of individual muscles of the hand and face. There is some evidence that the areas expand with use. In professional right-handed violinists, the representation of the finger digits are ...
... somatosensory map, with a large representation of the hand and face. These large representations permit fine control of individual muscles of the hand and face. There is some evidence that the areas expand with use. In professional right-handed violinists, the representation of the finger digits are ...
Auditory Nerve - Neurobiology of Hearing
... This histology slide of a cat cochlea (right) illustrates the sensory receptors, the auditory nerve, and its target the cochlear nucleus. The orientation of the cut is illustrated by the pink line in the drawing of the cat head (left). We learned about the relationship between these structures by i ...
... This histology slide of a cat cochlea (right) illustrates the sensory receptors, the auditory nerve, and its target the cochlear nucleus. The orientation of the cut is illustrated by the pink line in the drawing of the cat head (left). We learned about the relationship between these structures by i ...
Chapter 6 The peripheral nervous system Unit
... the axons of motor neurons that have their cell bodies in the grey matter of the spinal cord. The dorsal root contains the axons of sensory neurons that have their cell bodies in a small swelling on the dorsal root known as the dorsal root ganglion (Fig. 6.6). The 12 pairs of cranial and 31 pairs of ...
... the axons of motor neurons that have their cell bodies in the grey matter of the spinal cord. The dorsal root contains the axons of sensory neurons that have their cell bodies in a small swelling on the dorsal root known as the dorsal root ganglion (Fig. 6.6). The 12 pairs of cranial and 31 pairs of ...
Chapter 04: The Action Potential
... the next AP once an AP is initiated ~ 1 msec - Relative refractory period : for a few miliseconds after the end of absolute refractory period, current needed to reach threshold is above normal ...
... the next AP once an AP is initiated ~ 1 msec - Relative refractory period : for a few miliseconds after the end of absolute refractory period, current needed to reach threshold is above normal ...
22_LectureSlides
... Postural adjustments & voluntary movements depend more on cerebellar and basal ganglia ...
... Postural adjustments & voluntary movements depend more on cerebellar and basal ganglia ...
Nervous System
... – unipolar neuron - a single nerve fiber is extended from the soma, and it divides into a dendrite and an axon (sensory neurons that conduct reflexes or detect various stimuli). – bipolar neuron - a dendrite and an axon extend from the soma independently (sensory neurons involved in special senses s ...
... – unipolar neuron - a single nerve fiber is extended from the soma, and it divides into a dendrite and an axon (sensory neurons that conduct reflexes or detect various stimuli). – bipolar neuron - a dendrite and an axon extend from the soma independently (sensory neurons involved in special senses s ...
Ch 8 (Student MCQs etc)
... Initially, all channels have equal sensitivity (as in panel A, figure 8.3). During presentation of a vertical stimulus, the distribution of active channels is symmetrical about zero, so the perceived orientation corresponds to the actual stimulus orientation – i.e. vertical (panel B, figure 8.3). A ...
... Initially, all channels have equal sensitivity (as in panel A, figure 8.3). During presentation of a vertical stimulus, the distribution of active channels is symmetrical about zero, so the perceived orientation corresponds to the actual stimulus orientation – i.e. vertical (panel B, figure 8.3). A ...
Pursuing commitments
... Fig. 2. In Gardner and Lisberger’s experiment7, the monkey was trained to track moving targets. If two targets are moving at velocities shown by the colored arrows (a), the monkey initially tracks both targets with a smooth eye movement at an intermediate velocity, which is the vector average of the ...
... Fig. 2. In Gardner and Lisberger’s experiment7, the monkey was trained to track moving targets. If two targets are moving at velocities shown by the colored arrows (a), the monkey initially tracks both targets with a smooth eye movement at an intermediate velocity, which is the vector average of the ...
Ativity 13 - PCC - Portland Community College
... minimized. • The synapse is considered the integration center ...
... minimized. • The synapse is considered the integration center ...
operant conditioning of feeding behavior in aplysia
... reinforcing stimulus. The reinforcement was a brief (3 s) train (30 Hz) of electrical stimuli (7 V) applied to the anterior branch of the esophageal nerve (E n.) via surgically implanted electrodes. This pattern of stimulation mimicked neural activity in E n. that normally occurred during feeding. T ...
... reinforcing stimulus. The reinforcement was a brief (3 s) train (30 Hz) of electrical stimuli (7 V) applied to the anterior branch of the esophageal nerve (E n.) via surgically implanted electrodes. This pattern of stimulation mimicked neural activity in E n. that normally occurred during feeding. T ...
