PSYC 204 Study Guide - Final Guide: Neuroglia, Resting Potential, Myelin
9 Sep 2013
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Psych 204- intro to brain and cognition review 1. Differences between a localizationist and anti- localizationist. Come up with examples, problems, and the legacies of this doctrine. Neuron doctrine- golgi-a web of things and all neurons were interconnected in one giant link and cajal- discovered the synapse and neurons were just units that processed information in the brain. Know about specific glial cells (where can you find them and what do they do?) Neurons with long axons can be a problem because transmitters have to travel a really long way, so the myelin acts as an insulator to speed up the process and allow for accuracy. Depolarize the neuron to get excited, hyperpolarize the neuron to not fire it. All or nothing- either a potential fires or it does not. Nodes of ranvier- interruptions in the myelination, the places where there is not myelin.
