Memory fields of neurons in the primate prefrontal cortex
... The results of this study indicate that when monkeys need to remember an object and its location, the activity of many lateral prefrontal neurons reflects this combined what and where information. What-and-where neurons were able to simultaneously communicate the identity and location of a sample ob ...
... The results of this study indicate that when monkeys need to remember an object and its location, the activity of many lateral prefrontal neurons reflects this combined what and where information. What-and-where neurons were able to simultaneously communicate the identity and location of a sample ob ...
Cranial Nerves
... superior orbital fissure on its way to the eye. CN III innervates three of the four rectus muscles (superior, inferior, and medial) and the inferior oblique muscle. Other muscles innervated by CN III are the levator palpebrae superioris (upper eyelid elevation), iris sphincter (pupil constriction), ...
... superior orbital fissure on its way to the eye. CN III innervates three of the four rectus muscles (superior, inferior, and medial) and the inferior oblique muscle. Other muscles innervated by CN III are the levator palpebrae superioris (upper eyelid elevation), iris sphincter (pupil constriction), ...
The Nervous System - Hartland High School
... 23. What is depolarization? Cell becomes permeable to Na+ or sodium ions and they rush into cell changing the polarity of neuron. The inside becomes more positive and the outside of the cell more negative. 24. What is an action potential? What is another name for it? Electrical current generated by ...
... 23. What is depolarization? Cell becomes permeable to Na+ or sodium ions and they rush into cell changing the polarity of neuron. The inside becomes more positive and the outside of the cell more negative. 24. What is an action potential? What is another name for it? Electrical current generated by ...
Visuomotor neurons: ambiguity of the discharge or `motor` perception?
... The cortical motor system has been classically considered as the unitary, output stage of the brain processing of sensory information. According to this idea, the motor cortex } the acting brain } receives the result of the perceptual processing Žvisual, acoustical, tactile, etc.. elaborated by the ...
... The cortical motor system has been classically considered as the unitary, output stage of the brain processing of sensory information. According to this idea, the motor cortex } the acting brain } receives the result of the perceptual processing Žvisual, acoustical, tactile, etc.. elaborated by the ...
VII. The Nervous System
... neurotransmitter is released from the presynaptic cell and binds to receptors on a postsynaptic cells causing it to fire. a) An action potential arriving at the synaptic terminal at the end of an axon causes Ca+2 to rush through voltage sensitive channels b) The sudden in rush of Ca+2 causes synapti ...
... neurotransmitter is released from the presynaptic cell and binds to receptors on a postsynaptic cells causing it to fire. a) An action potential arriving at the synaptic terminal at the end of an axon causes Ca+2 to rush through voltage sensitive channels b) The sudden in rush of Ca+2 causes synapti ...
CHAPTER 4: Physical, Motor, and Sensory Development
... Neurotransmitters are chemicals released from one neuron that cross the synapse to a receiving neuron. Occipital lobe is the visual processing center of the brain. Parietal lobe is involved in the perception and integration of sensory input. ...
... Neurotransmitters are chemicals released from one neuron that cross the synapse to a receiving neuron. Occipital lobe is the visual processing center of the brain. Parietal lobe is involved in the perception and integration of sensory input. ...
Lecture 3 Figure 1
... although projections to cervical levels clearly predominate. Cells in dorsomedial regions of the red nucleus receive input from upper extremity areas of the motor cortex and project to cervical cord, but those in ventrolateral areas of the nucleus receive some fibers from lower extremity areas of the ...
... although projections to cervical levels clearly predominate. Cells in dorsomedial regions of the red nucleus receive input from upper extremity areas of the motor cortex and project to cervical cord, but those in ventrolateral areas of the nucleus receive some fibers from lower extremity areas of the ...
Summary of the Known Major Neurotransmitters
... 1. Drugs can mimic specific neurotransmitters. Nicotine is chemically similar to acetylcholine and can occupy acetylcholine receptor sites, stimulating skeletal muscles and causing the heart to beat more rapidly. 2. Drugs can mimic or block the effects of a neurotransmitter by fitting into receptor ...
... 1. Drugs can mimic specific neurotransmitters. Nicotine is chemically similar to acetylcholine and can occupy acetylcholine receptor sites, stimulating skeletal muscles and causing the heart to beat more rapidly. 2. Drugs can mimic or block the effects of a neurotransmitter by fitting into receptor ...
The Nervous System
... Convergent circuits = messages from several neurons come together at a single neuron; permits integration of information from several sources Divergent circuits = messages from a single neuron spreads out to several neurons; permits transmission of information from several sources Reverberatin ...
... Convergent circuits = messages from several neurons come together at a single neuron; permits integration of information from several sources Divergent circuits = messages from a single neuron spreads out to several neurons; permits transmission of information from several sources Reverberatin ...
The Autonomic Nervous System
... • A single synaptic event is not sufficient to initiate an action potential in the postganglionic neurons, but the summation of multiple events is required to initiate it • Divergence: relatively few preganglionic neurons synapse with many postganglionic neurons located within one or several nearb ...
... • A single synaptic event is not sufficient to initiate an action potential in the postganglionic neurons, but the summation of multiple events is required to initiate it • Divergence: relatively few preganglionic neurons synapse with many postganglionic neurons located within one or several nearb ...
Nonlinear Behavior of Neocortical Networks
... sophistication needed to reflect the power of real brains. Creating abstractions of neurons that capture the essential processing power of real neurons may help supplement the sophistication of neural nets and increase their power (Spruston and Kath 2004). Examination of nonlinear components of netw ...
... sophistication needed to reflect the power of real brains. Creating abstractions of neurons that capture the essential processing power of real neurons may help supplement the sophistication of neural nets and increase their power (Spruston and Kath 2004). Examination of nonlinear components of netw ...
phys chapter 56 [10-19
... adjacent premotor and somatosensory cortices of cerebrum; transmits output info in upward direction back to brain, functioning in feedback manner with cerebral cortical sensorimotor system to plan sequential voluntary body and limb movements in advance of actual movement; called development of motor ...
... adjacent premotor and somatosensory cortices of cerebrum; transmits output info in upward direction back to brain, functioning in feedback manner with cerebral cortical sensorimotor system to plan sequential voluntary body and limb movements in advance of actual movement; called development of motor ...
Regulation of Astrocyte Plasticity
... Could consider integrating notion of differential parameters necessary/sufficient to induce LTP (emphasize model of learning, not that it is equivalent or necessary for) in multiple areas of the brain. That one type of stimulus does not result in the same effect in numerous areas of the brain sugges ...
... Could consider integrating notion of differential parameters necessary/sufficient to induce LTP (emphasize model of learning, not that it is equivalent or necessary for) in multiple areas of the brain. That one type of stimulus does not result in the same effect in numerous areas of the brain sugges ...
Chapter 13 - Los Angeles City College
... Receives motor signals and sends it to the spinal cord Reticular Activating Portion (RAS) causes arousal via the cerebellum and may filter out unnecessary sensory stimuli. Damage can cause a coma ...
... Receives motor signals and sends it to the spinal cord Reticular Activating Portion (RAS) causes arousal via the cerebellum and may filter out unnecessary sensory stimuli. Damage can cause a coma ...
differentiation of brain vesicles
... 1) What are the ganglionic eminences of the developing endbrain? 2) What are the two largest subdivisions of the diencephalon? Identify also two additional subdivisions. Which of the subdivisions are mostly somatic in nature (connections, functions) and which are mostly limbic in nature? 3) In the t ...
... 1) What are the ganglionic eminences of the developing endbrain? 2) What are the two largest subdivisions of the diencephalon? Identify also two additional subdivisions. Which of the subdivisions are mostly somatic in nature (connections, functions) and which are mostly limbic in nature? 3) In the t ...
New clues to the location of visual consciousness
... “Since this breakdown in binocular vision was discovered, it has been the subject of scientific interest because it involves the switching of visual consciousness without conscious control,” says Randolph Blake, professor of psychology at Vanderbilt. He, Hugh R. Wilson, a mathematician from York Uni ...
... “Since this breakdown in binocular vision was discovered, it has been the subject of scientific interest because it involves the switching of visual consciousness without conscious control,” says Randolph Blake, professor of psychology at Vanderbilt. He, Hugh R. Wilson, a mathematician from York Uni ...
The Generation of Brain Waves
... The second source of electrical activity in neurons occurs at the synapse. This is the junction of the axon of one neuron and the dendrite of the next neuron. As the impulse arrives at the end of the axon of one cell, transmitter substances (chemicals such as acetylcholine) are released into the syn ...
... The second source of electrical activity in neurons occurs at the synapse. This is the junction of the axon of one neuron and the dendrite of the next neuron. As the impulse arrives at the end of the axon of one cell, transmitter substances (chemicals such as acetylcholine) are released into the syn ...
Slide - Reza Shadmehr
... Target location and hand position are computed by posterior parietal cortex cells in terms of vectors with respect to fixation point. These visual cues are represented with neurons that have receptive fields. Proprioceptive information from the arm, head, and eyes are used to estimate hand position ...
... Target location and hand position are computed by posterior parietal cortex cells in terms of vectors with respect to fixation point. These visual cues are represented with neurons that have receptive fields. Proprioceptive information from the arm, head, and eyes are used to estimate hand position ...
text - Systems Neuroscience Course, MEDS 371, Univ. Conn. Health
... representing current circumstances and their associated memories. These signals converge on groups of matrix cells that represent various actions and bias the medium spiny neurons toward excitation. The full excitation of cells in a matrix group also depends on two additional inputs; dopaminergic a ...
... representing current circumstances and their associated memories. These signals converge on groups of matrix cells that represent various actions and bias the medium spiny neurons toward excitation. The full excitation of cells in a matrix group also depends on two additional inputs; dopaminergic a ...
Nervous System Outline
... a receptor of information. Some neurons have numerous dendrites all branching out as receptors. c. Axon - The axon is the conducting end of the neuron. It transmits a message along its way. Some neurons can have very long axons, such as an axon traveling from your foot to your spinal cord. 2. Nerve ...
... a receptor of information. Some neurons have numerous dendrites all branching out as receptors. c. Axon - The axon is the conducting end of the neuron. It transmits a message along its way. Some neurons can have very long axons, such as an axon traveling from your foot to your spinal cord. 2. Nerve ...
Genetics
... Axon: A thin, long structure that transmits signals from the cell body to the axon terminal. ...
... Axon: A thin, long structure that transmits signals from the cell body to the axon terminal. ...
Visual Brain
... • Neurons that fire to specific features of a stimulus • Pathway away from retina shows neurons that fire to more complex stimuli • Cells that are feature detectors: – Simple cortical cell – Complex cortical cell – End-stopped cortical cell ...
... • Neurons that fire to specific features of a stimulus • Pathway away from retina shows neurons that fire to more complex stimuli • Cells that are feature detectors: – Simple cortical cell – Complex cortical cell – End-stopped cortical cell ...
Slide 1 - Elsevier
... FIGURE 35.1 Functional organization of the CNS control of breathing. Circuitry centered within the medulla oblongata of the brainstem (blue oval) generates an oscillating inspiratory–expiratory rhythm. Neurons within the oscillator circuit generate rhythmic respiratory motor output without requirin ...
... FIGURE 35.1 Functional organization of the CNS control of breathing. Circuitry centered within the medulla oblongata of the brainstem (blue oval) generates an oscillating inspiratory–expiratory rhythm. Neurons within the oscillator circuit generate rhythmic respiratory motor output without requirin ...