Lecture VIII. Spinal Cord
... The size of white matter tracts (posterior, lateral and anterior columns) increases as more axons are added on the way TO the brain and decreases as axons end on the way FROM the the brain. September 21, 2009 ...
... The size of white matter tracts (posterior, lateral and anterior columns) increases as more axons are added on the way TO the brain and decreases as axons end on the way FROM the the brain. September 21, 2009 ...
Corticofugal Modulation of Initial Sound
... sponses of recorded CN neurons. The tone frequency varied from 5 kHz below to 5 kHz above the BFs of given CN neurons with a 1 kHz increment. The tone amplitude was set at the minimum thresholds of given CN neurons so that neurons could only show responses to a few tone frequencies before cortical s ...
... sponses of recorded CN neurons. The tone frequency varied from 5 kHz below to 5 kHz above the BFs of given CN neurons with a 1 kHz increment. The tone amplitude was set at the minimum thresholds of given CN neurons so that neurons could only show responses to a few tone frequencies before cortical s ...
What Are Emotional States, and Why Do We
... that are the goals for action. This leads to a theory of the evolutionary adaptive value of emotions, which is that different genes specify different goals in their own self-interest, and any actions can then be learned and performed by instrumental learning to obtain the goals. The brain mechanisms ...
... that are the goals for action. This leads to a theory of the evolutionary adaptive value of emotions, which is that different genes specify different goals in their own self-interest, and any actions can then be learned and performed by instrumental learning to obtain the goals. The brain mechanisms ...
pdf - Olin Neuropsychiatry Research Center
... increased relative to the Go stimulus. Similarly, interpretation of the findings of Braver et al (2001), who also employed a task in which Go and NoGo trials were equally probable, is complicated by the inclusion of multiple Go stimulus variants (i.e., any letter that was not an ‘X’) versus only a s ...
... increased relative to the Go stimulus. Similarly, interpretation of the findings of Braver et al (2001), who also employed a task in which Go and NoGo trials were equally probable, is complicated by the inclusion of multiple Go stimulus variants (i.e., any letter that was not an ‘X’) versus only a s ...
SPHS 4050, Neurological Bases, PP 09a
... • Cranial nerves – Some are sensory only, some are motor only, and some are mixed. – All have some relation to speech, language, hearing, communication, and/or swallowing – Largely voluntary, but some include autonomic and reflexive pathways – Organized in pairs – Each pair designated by name and R ...
... • Cranial nerves – Some are sensory only, some are motor only, and some are mixed. – All have some relation to speech, language, hearing, communication, and/or swallowing – Largely voluntary, but some include autonomic and reflexive pathways – Organized in pairs – Each pair designated by name and R ...
Time-frequency computational model for echo
... calculations resemble computerized tomography or 3D reconstruction by rotating and overlaying individual images having less dimensionality, and they probably cannot be done at the early stages of the auditory pathways. To create the bat’s images, detailed information about the wideband, intrinsicall ...
... calculations resemble computerized tomography or 3D reconstruction by rotating and overlaying individual images having less dimensionality, and they probably cannot be done at the early stages of the auditory pathways. To create the bat’s images, detailed information about the wideband, intrinsicall ...
the spinal cord and the influence of its damage on
... In spinal cord injury, the destruction of nerve fibres that carry motor signals from the brain to the torso and limbs leads to muscle paralysis. Destruction of sensory nerve fibres can lead to loss of sensations such as touch, pressure and temperature. Largely unknown is that the spinal cord control ...
... In spinal cord injury, the destruction of nerve fibres that carry motor signals from the brain to the torso and limbs leads to muscle paralysis. Destruction of sensory nerve fibres can lead to loss of sensations such as touch, pressure and temperature. Largely unknown is that the spinal cord control ...
Spinal cord and reflexes
... The cell bodies of neurons form functional groups called nuclei Sensory nuclei: – dorsal (posterior) – connect to peripheral receptors ...
... The cell bodies of neurons form functional groups called nuclei Sensory nuclei: – dorsal (posterior) – connect to peripheral receptors ...
Spinal cord and reflexes
... The cell bodies of neurons form functional groups called nuclei Sensory nuclei: – dorsal (posterior) – connect to peripheral receptors ...
... The cell bodies of neurons form functional groups called nuclei Sensory nuclei: – dorsal (posterior) – connect to peripheral receptors ...
The Crash Course in Head, Neck, and Arm By Mike Sughrue
... rather simple in their patterns. They have one nucleus in the medial column of the brain stem (the 3 as we will see is the exception), and that somatic motor nucleus is always named after the nerve. The Mixed nerves (5,7,9,10) are the pharyngeal arch nerves, their somatic motor nuclei are found in t ...
... rather simple in their patterns. They have one nucleus in the medial column of the brain stem (the 3 as we will see is the exception), and that somatic motor nucleus is always named after the nerve. The Mixed nerves (5,7,9,10) are the pharyngeal arch nerves, their somatic motor nuclei are found in t ...
Receptive Field Properties of Single Neurons in Rat Primary Visual
... velocities varied from 10 to 250°/s. Some units, mainly confined to layer 4, responded to velocities as high as 700°/s. Response versus contrast curves (best fit with Naka-Rushton) varied from nearly linear to extremely steep (mean contrast semisaturation 50% and threshold 6%). There was a trend for ...
... velocities varied from 10 to 250°/s. Some units, mainly confined to layer 4, responded to velocities as high as 700°/s. Response versus contrast curves (best fit with Naka-Rushton) varied from nearly linear to extremely steep (mean contrast semisaturation 50% and threshold 6%). There was a trend for ...
Synaptic Regulation of Action Potential Timing in
... yielding tip resistances of 5– 8 MV. Series resistance (15–30 MV) was monitored throughout the recording, and neurons exhibiting .25% change were rejected. Voltage errors attributable to series resistance and the liquid junction potential were subtracted off-line. In some instances in which the reve ...
... yielding tip resistances of 5– 8 MV. Series resistance (15–30 MV) was monitored throughout the recording, and neurons exhibiting .25% change were rejected. Voltage errors attributable to series resistance and the liquid junction potential were subtracted off-line. In some instances in which the reve ...
Pyramidal (Voluntary Motor) System
... hypertonia, and positive Babinski sign Lower Motor Neuron: lesions of cell bodies of motor neurons (in cranial nerve motor nuclei or ventral horn of spinal cord) or their axons in nerves to the muscle (“final common pathway”) results in flaccidity, hyporeflexia, hypotonia, with atrophy ...
... hypertonia, and positive Babinski sign Lower Motor Neuron: lesions of cell bodies of motor neurons (in cranial nerve motor nuclei or ventral horn of spinal cord) or their axons in nerves to the muscle (“final common pathway”) results in flaccidity, hyporeflexia, hypotonia, with atrophy ...
T2 - Center for Neural Basis of Cognition
... Corollary discharge has an impact far back into the system. Remapping implies widespread connectivity in which many neurons have rapid access to information well beyond the classical receptive field. Vision is an active process of building representations. ...
... Corollary discharge has an impact far back into the system. Remapping implies widespread connectivity in which many neurons have rapid access to information well beyond the classical receptive field. Vision is an active process of building representations. ...
Acoustical Vision of Neglected Stimuli: Interaction among Spatially
... V5, and V6), using six separate one-way ANOVAs carried out on mean percentage of correct responses, converted in arcsine values. Each ANOVA was carried out with condition as main factor: One unimodal visual condition (e.g., V1) and six cross-modal conditions, in which the acoustic stimulus was prese ...
... V5, and V6), using six separate one-way ANOVAs carried out on mean percentage of correct responses, converted in arcsine values. Each ANOVA was carried out with condition as main factor: One unimodal visual condition (e.g., V1) and six cross-modal conditions, in which the acoustic stimulus was prese ...
Dorsal Spinocerebellar Tract
... The trigeminal ganglion is functionally similar to what in the body representation pathway? Answer: Dorsal Root Ganglion Both contain cell bodies of the first ? order neurons of what morphological cell type? Answer: pseudounipolar neurons The Mesencephalic Nucleus of V is a special case why? Answer: ...
... The trigeminal ganglion is functionally similar to what in the body representation pathway? Answer: Dorsal Root Ganglion Both contain cell bodies of the first ? order neurons of what morphological cell type? Answer: pseudounipolar neurons The Mesencephalic Nucleus of V is a special case why? Answer: ...
Sensory Systems - Zanichelli online per la scuola
... Intensity of sensation is coded as the frequency of action potentials. Some sensory cells transmit information to the brain about internal conditions, but there is no conscious sensation. ...
... Intensity of sensation is coded as the frequency of action potentials. Some sensory cells transmit information to the brain about internal conditions, but there is no conscious sensation. ...
Functional architecture in monkey inferotemporal cortex revealed by
... size of imaged area was adjusted by selecting an appropriate combination of lenses with different focal distances, 35 and 50 mm. The CCD camera was focused on a plane 300 mm below the cortical surface. A trial of recording was initiated by first synchronizing a certain phase of respiration by stoppi ...
... size of imaged area was adjusted by selecting an appropriate combination of lenses with different focal distances, 35 and 50 mm. The CCD camera was focused on a plane 300 mm below the cortical surface. A trial of recording was initiated by first synchronizing a certain phase of respiration by stoppi ...
Computation by Ensemble Synchronization in Recurrent Networks
... shown that the network could generate a ‘Population Spike’ (PS), characterized by a near coincident firing of neurons, each firing only one or two spikes, as a response to an external excitatory input pulses in an all-or-none fashion. Moreover, for a given amplitude of the pulses, the response was s ...
... shown that the network could generate a ‘Population Spike’ (PS), characterized by a near coincident firing of neurons, each firing only one or two spikes, as a response to an external excitatory input pulses in an all-or-none fashion. Moreover, for a given amplitude of the pulses, the response was s ...
Basics of electromagnetic field mapping
... data that can be shown to be a consequence of one or several processes producing a potential difference between two defined sites can be said to be a conclusion that is reference independent. This is the case for all analysis that compare the shape of scalp potential maps. ...
... data that can be shown to be a consequence of one or several processes producing a potential difference between two defined sites can be said to be a conclusion that is reference independent. This is the case for all analysis that compare the shape of scalp potential maps. ...
Peripheral Nervous System (PNS) PNS – all neural structures
... The receptor’s receptive field must be stimulated. The smaller the field, the better the brain can localize it ...
... The receptor’s receptive field must be stimulated. The smaller the field, the better the brain can localize it ...
Neck Muscle Responses to Stimulation of Monkey Superior
... differed slightly in response magnitude, but this will not be discussed in the present papers. However, we confirmed that the baseline level of neck EMG immediately prior to stimulation onset did not differ between the fixation and fixation-blink trials. The three-dimensional topography of the SC dr ...
... differed slightly in response magnitude, but this will not be discussed in the present papers. However, we confirmed that the baseline level of neck EMG immediately prior to stimulation onset did not differ between the fixation and fixation-blink trials. The three-dimensional topography of the SC dr ...
Sir Charles Scott Sherrington English Neurophysiologist 1857
... addressing the links between reflexes and their patterns in applying correction procedures for children with neuro-developmental deficits. Sherrington’s work relating to the dual protection effect of a reflex pattern in the face of dysfunction or pathology helps Dr. Masgutova explain why standard ph ...
... addressing the links between reflexes and their patterns in applying correction procedures for children with neuro-developmental deficits. Sherrington’s work relating to the dual protection effect of a reflex pattern in the face of dysfunction or pathology helps Dr. Masgutova explain why standard ph ...