Monitoring and switching of cortico-basal ganglia loop
... stimuli are involved (Matsumoto et al., 2001). Involvement of the CM–Pf complex in attentional control of action was investigated by using the cued-target detection task, a conventional attention paradigm in which a visual trigger stimulus appeared either 80% of the trials at the same spatial locati ...
... stimuli are involved (Matsumoto et al., 2001). Involvement of the CM–Pf complex in attentional control of action was investigated by using the cued-target detection task, a conventional attention paradigm in which a visual trigger stimulus appeared either 80% of the trials at the same spatial locati ...
Objectives 35 - U
... - motor loop that uses putamen as input to the basal ganglia and not the caudate nucleus - somatosensory and motor areas of cortex project to the putamen projects to globus pallidus projects to thalamus output to supplementary motor areas projects to motor cortex; motor programs selected by ...
... - motor loop that uses putamen as input to the basal ganglia and not the caudate nucleus - somatosensory and motor areas of cortex project to the putamen projects to globus pallidus projects to thalamus output to supplementary motor areas projects to motor cortex; motor programs selected by ...
Physiology Ch 45 p543-557 [4-25
... -can elicit immediate reactions from brain or be stored as memories for up to years -somatic portion of sensory nervous system transmits sensory information from receptors of entire body surface and from some deep structures -and conducts through spinal cord at all levels, reticular substance of med ...
... -can elicit immediate reactions from brain or be stored as memories for up to years -somatic portion of sensory nervous system transmits sensory information from receptors of entire body surface and from some deep structures -and conducts through spinal cord at all levels, reticular substance of med ...
Electrical Synapses between Dopaminergic Neurons of the
... held previously at ⫺60 mV) between the potential at sag peak (see Fig. 1, E) and the potential at steady state (see Fig. 1, F). Spike duration was measured between the onset of the spike and the equipotential point during the repolarization phase. Fast afterhyperpolarization amplitude was taken betw ...
... held previously at ⫺60 mV) between the potential at sag peak (see Fig. 1, E) and the potential at steady state (see Fig. 1, F). Spike duration was measured between the onset of the spike and the equipotential point during the repolarization phase. Fast afterhyperpolarization amplitude was taken betw ...
Nervous System - Neuron and Nerve Impulse PowerPoint
... the flow of ions at the point of the impulse causes sodium channels just ahead of it to open. This allows the impulse to move rapidly along the axon. – The flow of an impulse can be compared to the fall of a row of dominoes. As each domino falls, it causes the next domino to fall. An action potentia ...
... the flow of ions at the point of the impulse causes sodium channels just ahead of it to open. This allows the impulse to move rapidly along the axon. – The flow of an impulse can be compared to the fall of a row of dominoes. As each domino falls, it causes the next domino to fall. An action potentia ...
05. Motor Pathways 2011.jnt
... 1. The cell body of a lower motor neuron is in the CNS … either the ventral horn gray matter of the spinal cord or cranial nerve motor nuclei. 2. The "Final Common Path". All processing and commands arising in the brain must be conveyed to a single target, the large, alpha motor neurons. The efferen ...
... 1. The cell body of a lower motor neuron is in the CNS … either the ventral horn gray matter of the spinal cord or cranial nerve motor nuclei. 2. The "Final Common Path". All processing and commands arising in the brain must be conveyed to a single target, the large, alpha motor neurons. The efferen ...
Wrinkles, Wormholes, and Hamlet
... speakers, and much exercise of his own style” (2001:179). The “exercise” of stage plays, says Crane, churns out material change in the world from the collision of imitation and personal “style.” Plays are “material practice, analogous to other ‘real’ endeavors such as studies, trades, or sports whic ...
... speakers, and much exercise of his own style” (2001:179). The “exercise” of stage plays, says Crane, churns out material change in the world from the collision of imitation and personal “style.” Plays are “material practice, analogous to other ‘real’ endeavors such as studies, trades, or sports whic ...
Life and Death of Neurons in the Aging Brain
... stress and aberrant calcium metabolism, and in fact, these processes may even augment disruption in neurofilament protein assembly or transport (28). ...
... stress and aberrant calcium metabolism, and in fact, these processes may even augment disruption in neurofilament protein assembly or transport (28). ...
Testing upper motor neuron function in amyotrophic lateral sclerosis
... issues limit the use of these sophisticated imaging techniques to a few highly specialized centres. Thus far, therefore, no method to investigate upper motor neuron function has proved useful and applicable as a measure of efficacy in clinical trials, despite some enthusiasm for the threshold tracki ...
... issues limit the use of these sophisticated imaging techniques to a few highly specialized centres. Thus far, therefore, no method to investigate upper motor neuron function has proved useful and applicable as a measure of efficacy in clinical trials, despite some enthusiasm for the threshold tracki ...
Electrophysiological Identification of Tonic and Phasic Neurons in
... enhanced amplitudes of overshoot and afterhyperpolarization (AHP) and increased the number of AP firings. In phasic neurons, the same inflammation treatments caused changes only in overshoot and AP durations, but not in rheobase, AHP or the number of AP firing. Neither capacitance (Cap) nor resting ...
... enhanced amplitudes of overshoot and afterhyperpolarization (AHP) and increased the number of AP firings. In phasic neurons, the same inflammation treatments caused changes only in overshoot and AP durations, but not in rheobase, AHP or the number of AP firing. Neither capacitance (Cap) nor resting ...
C. elegans Neurology Supplement - Bio-Rad
... information? What is cognition? What are emotions? What makes up intelligence? While we do know some details about these questions, the essence of how the brain functions still eludes us. At the time of writing this manual, major scientific endeavors are looking to map all of the neuronal connection ...
... information? What is cognition? What are emotions? What makes up intelligence? While we do know some details about these questions, the essence of how the brain functions still eludes us. At the time of writing this manual, major scientific endeavors are looking to map all of the neuronal connection ...
CHAPTER 5 SIGNALLING IN NEURONS
... 5.1. SYNAPTIC TRANSMISSION One of the main functions of neurons is to communicate with other neurons. An individual neuron may receive information from many different sources. Its job is to evaluate this information and "make a decision" as to whether to send out information to all of its target neu ...
... 5.1. SYNAPTIC TRANSMISSION One of the main functions of neurons is to communicate with other neurons. An individual neuron may receive information from many different sources. Its job is to evaluate this information and "make a decision" as to whether to send out information to all of its target neu ...
Presentation materials - Brain Dynamics Laboratory
... cells are sensitive to the frequency content of the input. Some bursts resonate with oscillations and elicit a response, others do not, depending on the interburst frequency. • Bursts can resonate with short-term synaptic plasticity making a synapse a band-pass filter. A synapse having short-term fa ...
... cells are sensitive to the frequency content of the input. Some bursts resonate with oscillations and elicit a response, others do not, depending on the interburst frequency. • Bursts can resonate with short-term synaptic plasticity making a synapse a band-pass filter. A synapse having short-term fa ...
“Attention for Action” and “Response Selection” in Primate Anterior
... temporally. The Go/No-go discrimination task started once the monkeys pressed the key for ⬎0.5 sec and fixated on a small fixation square (0.5 ⫻ 0.5° in visual angle) on the CRT monitor. In the spatial discrimination task, location-related visual cues using a 0.5°-sized gray square were randomly dis ...
... temporally. The Go/No-go discrimination task started once the monkeys pressed the key for ⬎0.5 sec and fixated on a small fixation square (0.5 ⫻ 0.5° in visual angle) on the CRT monitor. In the spatial discrimination task, location-related visual cues using a 0.5°-sized gray square were randomly dis ...
CHAPTER 10: NERVOUS SYSTEM I
... Summation = many subthreshold stimuli received one after another may allow threshold potential to be reached, trigger an AP and begin a NI on a neuron. a. +15 mV = threshold = AP = NI b. +5, +5, +5, = +15 mV = threshold = AP = NI. ...
... Summation = many subthreshold stimuli received one after another may allow threshold potential to be reached, trigger an AP and begin a NI on a neuron. a. +15 mV = threshold = AP = NI b. +5, +5, +5, = +15 mV = threshold = AP = NI. ...
CHAPTER 10: NERVOUS SYSTEM I
... Summation = many subthreshold stimuli received one after another may allow threshold potential to be reached, trigger an AP and begin a NI on a neuron. a. +15 mV = threshold = AP = NI b. +5, +5, +5, = +15 mV = threshold = AP = NI. ...
... Summation = many subthreshold stimuli received one after another may allow threshold potential to be reached, trigger an AP and begin a NI on a neuron. a. +15 mV = threshold = AP = NI b. +5, +5, +5, = +15 mV = threshold = AP = NI. ...
Substrate Stiffness and Adhesivity Influence Neuron Axonal Growth
... In the lab, low-density cultures of neurons are far less complex than neural tissue and thus provide a promising opportunity to understand single-cell mechanics through phasecontrast microscopy and fluorescence imaging techniques. Primary cell cultures are used almost exclusively for this type of re ...
... In the lab, low-density cultures of neurons are far less complex than neural tissue and thus provide a promising opportunity to understand single-cell mechanics through phasecontrast microscopy and fluorescence imaging techniques. Primary cell cultures are used almost exclusively for this type of re ...
NeuralNets
... Hopfield, J. J. “Neurons with graded response have collective computational properties like those of two-state neurons”, Proceedings of the National Academy of Science, USA. Vol 81, pp. 3088-3092, May 1984, Biophysics. ...
... Hopfield, J. J. “Neurons with graded response have collective computational properties like those of two-state neurons”, Proceedings of the National Academy of Science, USA. Vol 81, pp. 3088-3092, May 1984, Biophysics. ...
Signal Integration in Thalamus: Labeled Lines Go
... of the same type can vary their dendritic arbor size according to location in the retina—a feature referred to as retinotopic-dependent dendritic scaling. While this feature is thought to be less prominent in non-foveated species such as mice, it sometimes still occurs (Bleckert et al., 2014). Thus, ...
... of the same type can vary their dendritic arbor size according to location in the retina—a feature referred to as retinotopic-dependent dendritic scaling. While this feature is thought to be less prominent in non-foveated species such as mice, it sometimes still occurs (Bleckert et al., 2014). Thus, ...