Action potentials
... Sensory Motor Integration 1. A sensory stimulus is received by sensory receptors 2. The sensory action potential is transmitted along sensory neurons to the CNS 3. The CNS interprets the incoming sensory information and determines the most appropriate reflex response 4. The action potentials for th ...
... Sensory Motor Integration 1. A sensory stimulus is received by sensory receptors 2. The sensory action potential is transmitted along sensory neurons to the CNS 3. The CNS interprets the incoming sensory information and determines the most appropriate reflex response 4. The action potentials for th ...
Lecture 2: The Spinal Cord
... •Arises primarily from primary motor cortex, premotor and supplementary motor cortex •Somatosensory cortex also contributes •70-90% of fibers cross in the lower medulla (decussation of pyramids) •Crossed = lateral corticospinal tract •Uncrossed = anterior/ventral corticospinal tract ...
... •Arises primarily from primary motor cortex, premotor and supplementary motor cortex •Somatosensory cortex also contributes •70-90% of fibers cross in the lower medulla (decussation of pyramids) •Crossed = lateral corticospinal tract •Uncrossed = anterior/ventral corticospinal tract ...
REFLEX ARCS - Anatomy.tv
... the sensory neuron. Impulses cross through the center of the gray matter in the spinal cord as they follow their reflex arc. Therefore, a contralateral reflex produces a reflex action on the opposite side of the body to where the stimulus was perceived. ...
... the sensory neuron. Impulses cross through the center of the gray matter in the spinal cord as they follow their reflex arc. Therefore, a contralateral reflex produces a reflex action on the opposite side of the body to where the stimulus was perceived. ...
PDF
... inter-subject comparisons and group analyses more difficult. Previous electrocortical mapping studies often discussed their group data by showing several or all of the individual patient’s results separately in the individual patient’s native (orginal) space or in a sketch thereof.11-13 However, thi ...
... inter-subject comparisons and group analyses more difficult. Previous electrocortical mapping studies often discussed their group data by showing several or all of the individual patient’s results separately in the individual patient’s native (orginal) space or in a sketch thereof.11-13 However, thi ...
Do you feel what I feel? Understanding Sensory Changes in the
... them asked me a question which I could not understand, the other repeated it for me. However, I was still unable to lip read it. They paused while one of them wrote it down. I was aware that the easy going conversation they had been enjoying before my arrival now ended. Within a few minutes two of t ...
... them asked me a question which I could not understand, the other repeated it for me. However, I was still unable to lip read it. They paused while one of them wrote it down. I was aware that the easy going conversation they had been enjoying before my arrival now ended. Within a few minutes two of t ...
The Graded Motor Imagery Handbook, 2012
... Person must establish & sustain ownership of reflected limb Visual input overrides absent or poor proprioception of the ...
... Person must establish & sustain ownership of reflected limb Visual input overrides absent or poor proprioception of the ...
The Integrative Role of Posterior Parietal Cortex and related Clinical S
... posterior parietal cortex critical for the spatial attention is in the intraparietal region. When this area is injured, the modality-specific channel of information related to the external space can remain intact, but cannot be recombined to generate an interactive and coherent representation necess ...
... posterior parietal cortex critical for the spatial attention is in the intraparietal region. When this area is injured, the modality-specific channel of information related to the external space can remain intact, but cannot be recombined to generate an interactive and coherent representation necess ...
Lecture 21,22
... In the middle on the dorsal side is a shallow groove called the posterior median sulcus and on the ventral side is the anterior median fissure (deeper). center consist of gray matter shaped like a butterfly and there is an opening at the center Spinal cord is protected by three layers of meninges. T ...
... In the middle on the dorsal side is a shallow groove called the posterior median sulcus and on the ventral side is the anterior median fissure (deeper). center consist of gray matter shaped like a butterfly and there is an opening at the center Spinal cord is protected by three layers of meninges. T ...
Hearing - RaduegeAP
... and depth); the brain’s natural mode of information processing for many functions, including vision (simplistically put…doing several things at once) ...
... and depth); the brain’s natural mode of information processing for many functions, including vision (simplistically put…doing several things at once) ...
Neurology - RCRMC Family Medicine Residency
... of patients. Patients may complain of a foot drop (slapping gait) or a weak grip (difficulty writing or manipulating fingers). As the disease progresses, there may be muscle cramps, spasticity, twitching, loss of voluntary limb movement, drooling, speech and swallowing difficulties and the inability ...
... of patients. Patients may complain of a foot drop (slapping gait) or a weak grip (difficulty writing or manipulating fingers). As the disease progresses, there may be muscle cramps, spasticity, twitching, loss of voluntary limb movement, drooling, speech and swallowing difficulties and the inability ...
Spinal nerves
... • Direct transfer of stimulus from sensory neuron to motor neuron (sometimes with an interneuron in between) allows for rapid response to stimuli. • May be: – Inborn (intrinsic) • Example – maintain posture, control visceral activities • Can be modified by learning and conscious effort --Learned (ac ...
... • Direct transfer of stimulus from sensory neuron to motor neuron (sometimes with an interneuron in between) allows for rapid response to stimuli. • May be: – Inborn (intrinsic) • Example – maintain posture, control visceral activities • Can be modified by learning and conscious effort --Learned (ac ...
Brain
... If there can be no communication between hemispheres, what the right hemisphere sees it cannot talk about because it cannot send that message to the left, and speaking, hemisphere. However, because the right hemisphere controls the opposite hand, the left hand could point to, or pick up, what the ri ...
... If there can be no communication between hemispheres, what the right hemisphere sees it cannot talk about because it cannot send that message to the left, and speaking, hemisphere. However, because the right hemisphere controls the opposite hand, the left hand could point to, or pick up, what the ri ...
PTA 150 Day 11 TBI
... • The time between the injury and when the patient is able to remember recent events. The patient does not recall the injury circumstances. • The patient cannot retain new information or hold recent memories. This affects their ability to learn new skills. Anterograde Memory ...
... • The time between the injury and when the patient is able to remember recent events. The patient does not recall the injury circumstances. • The patient cannot retain new information or hold recent memories. This affects their ability to learn new skills. Anterograde Memory ...
Organization of the Nervous System
... Specialized tissue for rapid conduction of electrical impulses that convey information from one part of the body to another – 98% nervous tissue concentrated in brain and spinal cord Nervous tissue contains two basic cell types Neurons = functional units transmit information in the form of electrica ...
... Specialized tissue for rapid conduction of electrical impulses that convey information from one part of the body to another – 98% nervous tissue concentrated in brain and spinal cord Nervous tissue contains two basic cell types Neurons = functional units transmit information in the form of electrica ...
Classical_SWAT Quiz
... Neil was bitten by a spider when he was eight years old. He then developed a phobia about spiders. He is now sixteen and runs away every time he sees a spider, or a picture of one. He avoids any films about insects and going near a wildlife area. This behaviour can be explained by… A. spontaneous r ...
... Neil was bitten by a spider when he was eight years old. He then developed a phobia about spiders. He is now sixteen and runs away every time he sees a spider, or a picture of one. He avoids any films about insects and going near a wildlife area. This behaviour can be explained by… A. spontaneous r ...
Special Senses Lab
... lens to “plump up”. Making these adjustments is referred to as, accommodation. ...
... lens to “plump up”. Making these adjustments is referred to as, accommodation. ...
Neuroscience 7b – Cortical Motor Function
... movement unless the stimuli is very intense (much more so than in M1). This are of the brain prepares M1 for the motor act. It does this by facilitating multiple columns in M1. These neurones are more easily stimulated by impulses from other parts of the brain and are close to the threshold level ne ...
... movement unless the stimuli is very intense (much more so than in M1). This are of the brain prepares M1 for the motor act. It does this by facilitating multiple columns in M1. These neurones are more easily stimulated by impulses from other parts of the brain and are close to the threshold level ne ...
Understanding Eye Movements Primary Motor Pathway
... Internuclear: interconnections between nuclei Internuclear: (MLF) ...
... Internuclear: interconnections between nuclei Internuclear: (MLF) ...
Motor systems
... How is limb position maintained? • Involuntary movement (i.e. posture): continual contraction and relaxation of the muscles in our feet and calves. • Voluntary movement: Stretch of the intrafusal fiber causes contraction of the extrafusal fiber via alpha motor neuron. Keeping the movement at this p ...
... How is limb position maintained? • Involuntary movement (i.e. posture): continual contraction and relaxation of the muscles in our feet and calves. • Voluntary movement: Stretch of the intrafusal fiber causes contraction of the extrafusal fiber via alpha motor neuron. Keeping the movement at this p ...
Cerebral Cortex and Corpus Callosum
... your body whereas the mirror image on the left side of your brain receives information from the right side of your body. There are more neurons responsible for receiving sensory information about the face and the head than there are neurons for receiving sensory information about the trunk of the bo ...
... your body whereas the mirror image on the left side of your brain receives information from the right side of your body. There are more neurons responsible for receiving sensory information about the face and the head than there are neurons for receiving sensory information about the trunk of the bo ...
Allochiria
Allochiria (from the Greek meaning ""other hand"") is a neurological disorder in which the patient responds to stimuli presented to one side of their body as if the stimuli had been presented at the opposite side. It is associated with spatial transpositions, usually symmetrical, of stimuli from one side of the body (or of the space) to the opposite one. Thus a touch to the left arm will be reported as a touch to the right arm, which is also known as somatosensory allochiria. If the auditory or visual senses are affected, sounds (a person's voice for instance) will be reported as being heard on the opposite side to that on which they occur and objects presented visually will be reported as having been presented on the opposite side. Often patients may express allochiria in their drawing while copying an image. Allochiria often co-occurs with unilateral neglect and, like hemispatial neglect, the disorder arises commonly from damage to the right parietal lobe.Allochiria is often confused with alloesthesia, also known as false allochiria. True allochiria is a symptom of dyschiria and unilateral neglect. Dyschiria is a disorder in the localization of sensation due to various degrees of dissociation and cause impairment in one side causing the inability to tell which side of the body was touched.