No Slide Title
... are needed to cover one nerve fiber • myelin sheath is segmented – nodes of Ranvier – gap between segments – internodes – myelin covered segments from one gap to the next – initial segment – short section of nerve fiber between the axon hillock and the first glial cell ...
... are needed to cover one nerve fiber • myelin sheath is segmented – nodes of Ranvier – gap between segments – internodes – myelin covered segments from one gap to the next – initial segment – short section of nerve fiber between the axon hillock and the first glial cell ...
Lecture 12b - Spinal Cord
... – proprioceptive (position) sensations – visual information from the eyes – vestibular (balance) sensations from inner ear as movements ...
... – proprioceptive (position) sensations – visual information from the eyes – vestibular (balance) sensations from inner ear as movements ...
Top-Down Versus Bottom-Up Control
... For each area, there was a population of neurons that first found the target well before the saccade (i.e., shortly after visual array onset) and a separate population that found the target after the saccade. The early population consisted of 35% of all target location–selective LIP neurons (24/68), ...
... For each area, there was a population of neurons that first found the target well before the saccade (i.e., shortly after visual array onset) and a separate population that found the target after the saccade. The early population consisted of 35% of all target location–selective LIP neurons (24/68), ...
PDF
... question is whether there are some new calretinin interneuron subtypes, which might substantially change micro-circuitry structure of the primate cerebral cortex. Keywords: GABA, calretinin, neocortex, pyramidal neurons, species differences ...
... question is whether there are some new calretinin interneuron subtypes, which might substantially change micro-circuitry structure of the primate cerebral cortex. Keywords: GABA, calretinin, neocortex, pyramidal neurons, species differences ...
Lecture 12b - Spinal Cord
... – proprioceptive (position) sensations – visual information from the eyes – vestibular (balance) sensations from inner ear as movements ...
... – proprioceptive (position) sensations – visual information from the eyes – vestibular (balance) sensations from inner ear as movements ...
Multifunctional Laryngeal Premotor Neurons: Their Activities during
... (CPGs) are not dedicated to producing a fixed motor pattern, but can assume different functional configurations and produce various motor patterns according to afferent inputs (Morton and Chiel, 1994; Dickinson, 1995; Marder and Calabrese, 1996). It is thus suggested that the respiratory neuronal ne ...
... (CPGs) are not dedicated to producing a fixed motor pattern, but can assume different functional configurations and produce various motor patterns according to afferent inputs (Morton and Chiel, 1994; Dickinson, 1995; Marder and Calabrese, 1996). It is thus suggested that the respiratory neuronal ne ...
Name Nervous System Questions 1. When a neuron is at its resting
... A. the inside of the cell is positively charged relative to the outside. B. sodium-potassium pumps transport sodium ions into the cell. C. gated sodium channels are open. D. sodium-potassium pumps transport both sodium and potassium ions out of the cell. E. there are more potassium ions inside the n ...
... A. the inside of the cell is positively charged relative to the outside. B. sodium-potassium pumps transport sodium ions into the cell. C. gated sodium channels are open. D. sodium-potassium pumps transport both sodium and potassium ions out of the cell. E. there are more potassium ions inside the n ...
14. Assessment of the nervous system
... efferent part (that creates response) As a result we have a circle – like structure - receptor (primary information centre) – programme centre – executive apparatus ...
... efferent part (that creates response) As a result we have a circle – like structure - receptor (primary information centre) – programme centre – executive apparatus ...
MirrorBot Report 6
... easily to take colour information into account, as mentioned further (cf. section 1.2.3.). 1.2. The model The setting of local filters with overlapping receptive fields, using self-organization, has been often modelled (see for example Miikkulainen et al. 1996), but models are most of the time theor ...
... easily to take colour information into account, as mentioned further (cf. section 1.2.3.). 1.2. The model The setting of local filters with overlapping receptive fields, using self-organization, has been often modelled (see for example Miikkulainen et al. 1996), but models are most of the time theor ...
Chapter 17-Pathways and Integrative Functions
... • Communication of CNS with body structures through pathways • Tracts = groups or bundles of axons that travel together in CNS • Nucleus = collection of neuron cell bodies within CNS • Somatotropy = correspondence between body area of receptors and functional areas in cerebral cortex ...
... • Communication of CNS with body structures through pathways • Tracts = groups or bundles of axons that travel together in CNS • Nucleus = collection of neuron cell bodies within CNS • Somatotropy = correspondence between body area of receptors and functional areas in cerebral cortex ...
17 Human Single Unit Activity for Reach and Grasp Motor Prostheses
... There are over 5 million patients suffering from paralysis in the United States alone due to traumatic accidents and diseases (Christopher & Dana Reeve Paralysis Foundation). Paralysis due to spinal cord injury, amyotrophic lateral sclerosis (ALS), or stroke sometimes leads to patients becoming “loc ...
... There are over 5 million patients suffering from paralysis in the United States alone due to traumatic accidents and diseases (Christopher & Dana Reeve Paralysis Foundation). Paralysis due to spinal cord injury, amyotrophic lateral sclerosis (ALS), or stroke sometimes leads to patients becoming “loc ...
Genetic Analysis of the Drosophila Ellipsoid Body
... using enhancer-trap technology. These methods represent a valuable source of type-specific neuronal markers that provide anatomical details of cellular phenotype not afforded by conventional histological techniques (Bier et al., 1989; Bellen et al., 1989). The genetic basis of enhancer-trap techniqu ...
... using enhancer-trap technology. These methods represent a valuable source of type-specific neuronal markers that provide anatomical details of cellular phenotype not afforded by conventional histological techniques (Bier et al., 1989; Bellen et al., 1989). The genetic basis of enhancer-trap techniqu ...
Michael Arbib: CS564 - Brain Theory and Artificial Intelligence
... Michael Arbib: CS564 - Brain Theory and Artificial Intelligence University of Southern California, Fall 2001 ...
... Michael Arbib: CS564 - Brain Theory and Artificial Intelligence University of Southern California, Fall 2001 ...
firing pattern modulation by oscillatory input in
... Steady-state depolarization-dependent ¢ring patterns As explained in Experimental procedures, the sine wave injection current was superimposed upon a steady-state depolarizing o¡set. In six neurons the magnitude of this depolarization was systematically varied resulting in a response progression sim ...
... Steady-state depolarization-dependent ¢ring patterns As explained in Experimental procedures, the sine wave injection current was superimposed upon a steady-state depolarizing o¡set. In six neurons the magnitude of this depolarization was systematically varied resulting in a response progression sim ...
Brain Stem Catecholamine Mechanisms in Tonic and
... SUMMARY Neurons of the lower brain stem maintain resting levels of arterial pressure (AP), mediate reflex responses from cardiopulmonary receptors, and are an important site of the hypotensive actions of a2-adrenergic agonists. Details of the pathways and transmitters that mediate tonic and reflex c ...
... SUMMARY Neurons of the lower brain stem maintain resting levels of arterial pressure (AP), mediate reflex responses from cardiopulmonary receptors, and are an important site of the hypotensive actions of a2-adrenergic agonists. Details of the pathways and transmitters that mediate tonic and reflex c ...
Human brainstem preganglionic parasympathetic
... obex, only a few large NOS-positive neurons were found medial to the nucleus tractus solitarius (Fig. 1H). Most medium-sized NOS-positive neurons had spindleshaped or ovoid perikarya with two prominent dendrites emanating from the long ends of the cell body (Fig. 2A-D, G and H). Those NOS-positive n ...
... obex, only a few large NOS-positive neurons were found medial to the nucleus tractus solitarius (Fig. 1H). Most medium-sized NOS-positive neurons had spindleshaped or ovoid perikarya with two prominent dendrites emanating from the long ends of the cell body (Fig. 2A-D, G and H). Those NOS-positive n ...
Full version (PDF file)
... may exert significant disinhibitory effect on the pyramidal neurons (Meskenaite 1997, Gonchar and Burkhalter 1999). Based on these observations, a “gating cell” function for the CR+ neurons – switching the flow of information between two pathways by inhibiting one of them and disinhibiting the other ...
... may exert significant disinhibitory effect on the pyramidal neurons (Meskenaite 1997, Gonchar and Burkhalter 1999). Based on these observations, a “gating cell” function for the CR+ neurons – switching the flow of information between two pathways by inhibiting one of them and disinhibiting the other ...
Concept cells: the building blocks of declarative
... Sparse coding. The responses of MTL neurons are typically very selective, in the sense that these neurons fire to very few of the stimuli presented to the subject (FIG. 2). In contrast to visual cortical areas, in which it is common to find neurons that fire to a relatively large number of stimuli43 ...
... Sparse coding. The responses of MTL neurons are typically very selective, in the sense that these neurons fire to very few of the stimuli presented to the subject (FIG. 2). In contrast to visual cortical areas, in which it is common to find neurons that fire to a relatively large number of stimuli43 ...
