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PINP: A New Method of Tagging Neuronal Populations
PINP: A New Method of Tagging Neuronal Populations

... Much of what we know about how the intact mammalian brain encodes information, and about the relation between neural activity and behavior, we owe to extracellular recording techniques. Extracellular recording is one of the main techniques available for studying the spike trains of individual neuron ...
Ch 14: Spinal Cord and Spinal Nerves
Ch 14: Spinal Cord and Spinal Nerves

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Mammalian Cerebral Cortex: Embryonic Development
Mammalian Cerebral Cortex: Embryonic Development

... formed PCP up to around the 15-week-of gestation is composed essentially of undifferentiated pyramidal neurons anchored to the first lamina by their apical dendrites and smooth somata with short descending axons. Eventually these pyramidal neurons become the major component of the cortical gray matt ...
Brains of Primitive Chordates - CIHR Research Group in Sensory
Brains of Primitive Chordates - CIHR Research Group in Sensory

... Figure 2 A comparison of the basic anatomical structure of the hemichordate, cephalochordate, urochordate, and craniate central nervous systems. Enteropneust hemichordates (represented by Saccoglossus cambrensis) have an epidermal nerve network that shows condensations in certain areas. At the base ...
Dear Notetaker:
Dear Notetaker:

...  Vision is suppressed during eye movements  There is a depression in LGN activity slightly before, during, and after eye movement  Eye movement center may be sending signals back to LGN to turn it off during saccadic eye movement  Info is not getting through LGN during these movements so this is ...
Functional organization of inferior parietal lobule convexity in the
Functional organization of inferior parietal lobule convexity in the

... out moving the electrode row caudally in steps of 1 mm. During each experimental session each electrode was inserted one after the other inside the dura until the first neuronal activity was detected for each of them. Each electrode was then deepened into the cortex independently one from the other, ...
The Nervous System
The Nervous System

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Nervous System - Alamo Colleges
Nervous System - Alamo Colleges

...  Sensory neuron –carries signal to spinal cord  Integration center – sensory and motor neurons connected by interneurons  Motor neuron – conducts impulses to effector  Effector – muscle fiber or gland cell that responds to impulses ...
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... • executive control – planning and guiding behaviour, judgement • damage can lead to disorganized behaviour, disinhibition and inappropriate social behaviour, impaired abstract thinking, rigidity in thought, perseveration, personality changes, emotional lability (inappropriate laughing or crying) • ...
SENSORY SYSTEMS
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... the lower end of the central sulcus which is the seat of consciousness for body movements and orientation in space taste and smell – sensory info for taste goes to the primary gustatory cortex located in the inferior postcentral gyrus of the parietal lobe and the anterior insula, sensory info for sm ...
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... Can modify activity of preganglionic autonomic neurons. Medulla: – Most directly controls activity of autonomic system. ...


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... Basic Functions of the Nervous System Sensory Input - provides the central nervous system with information about the internal and external environment Integration - CNS takes all the incoming information, processes it, then selects an appropriate action Motor Output – effects the physical responses ...
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... leading from the optic chiasm to the thalamus and superior colliculus, with the stump of the right optic nerve indicated but the left optic nerve cut off at the chiasm; III, oculomotor nerve; IV, trochlear nerve, which courses around the side of the cerebral peduncle from the dorsal surface of the b ...
Hybrots - Computing Science and Mathematics
Hybrots - Computing Science and Mathematics

... Noticing that the primary cause of death of neural cultures is either infection or changes in osmolarity, we developed a system for keeping cultures alive for over two years, by sealing them in a gas-permeable MEA culture chamber that keeps the bugs out and the water in (Potter & DeMarse 2001). This ...
first ten slides
first ten slides

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Biology Standards Based Benchmark Assessment (5th
Biology Standards Based Benchmark Assessment (5th

... 24. In Figure 4, as blood pressure increases, this triggers a response from the brain to decrease heart rate. The effect was a decrease in blood pressure. What is this process an example of? a. A positive feedback loop. b. A negative feedback loop. c. A negative cardiac loop. d. A positive neurologi ...
Multiple dynamic representations in the motor cortex
Multiple dynamic representations in the motor cortex

... In contrast, expert mice protracted their whiskers through a large angle to search for the pole soon after it became available (within approximately 350 ms) (auditory cue, Fig. 1d, e)27. The repeatability of whisking across trials (Pearson’s correlation coefficient; r 5 0.57, P , 0.001) (Supplementa ...
6 BIO Neurotransmitters - Appoquinimink High School
6 BIO Neurotransmitters - Appoquinimink High School

... the threshold has been met or exceeded, a chain reaction begins.  With threshold being met, the cell becomes depolarized and allows positively charged ions into the axon at the nodes of ranvier. This mix of positive and negative ions causes an electrical charge to form (an action potential). At 120 ...
Chapter 49 Worksheet: Nervous Systems The Evolution and
Chapter 49 Worksheet: Nervous Systems The Evolution and

... 6. Describe the specific function of the reticular system. The specific function of the reticular system is to act as a sensory filter, determining which incoming information reaches the cerebral cortex and thereby controlling how alert or aware a person is. 7. Relate the specific regions of the cer ...
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Premovement neuronal activity

Premovement neuronal activity in neurophysiological literature refers to neuronal modulations that alter the rate at which neurons fire before a subject produces movement. Through experimentation with multiple animals, predominantly monkeys, it has been shown that several regions of the brain are particularly active and involved in initiation and preparation of movement. Two specific membrane potentials, the bereitschaftspotential, or the BP, and contingent negative variation, or the CNV, play a pivotal role in premovement neuronal activity. Both have been shown to be directly involved in planning and initiating movement. Multiple factors are involved with premovement neuronal activity including motor preparation, inhibition of motor response, programming of the target of movement, closed-looped and open-looped tasks, instructed delay periods, short-lead and long-lead changes, and mirror motor neurons.
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