Module 4 notes

Module 4 notes - Chapter 4 Biological Psychology- a branch...

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Chapter 4 Biological Psychology- a branch of psychology concerned with the links between biology and behavior. (Some biological psychologists call themselves behavioral neuroscientists, neuropsychologists, behavior geneticists, psychological psychologists, or biopsychologists.) Neuron- a nerve cell; the basic building block of the nervous system Dendrite- the bushy, branching extensions of a neuron that receive messages and conduct impulses toward the cell body Axon- the extension of a neuron, ending in branching terminal fibers, through which messages pass to other neurons or to muscles of glands Myelin sheath- a layer of fatty tissue segmentally encasing the fibers of many neurons; enables vastly greater transmission speed of neural impulses as the impulse hops from one node to the next Action potential- a neural impulse; a brief electrical charge that travels down an axon. The action potential is generated by the movement of positively charged atoms in and out of channels in the axon’s membrane. Threshold- the level of stimulation required
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This note was uploaded on 04/03/2008 for the course PSY 101 taught by Professor Lamorte during the Spring '08 term at Rutgers.

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Module 4 notes - Chapter 4 Biological Psychology- a branch...

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