PSYC 325 Study Guide - Midterm Guide: Prepulse Inhibition, Dual Process Theory, Perceptual Learning
15 Mar 2019
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Use of these devices leads to perceptual learning that improves the user"s ability to recognize sensory evens. If excitation greater than threshold, action potential fired. Action potential spreads through neuron causing nt release at all its synapse. Excite, inhibit, modulate (alters the neurons in a more lasting way: functional scan (pet and fmri): Intense brain activity recruits additional blood flow (hemodynamic response) to provide the additional nutrients needed to support activity. Blood flow changes more slowly and more subtly than activity, less sensitive in time and space than electrophysiology: pet: injects a radioactive tracer to the blood, fmri: same as anatomical mri, no risk, so longer experiments okay. Tracking blood flow (ratio of oxydrnate and dioxydratned of blood flow: eeg: electroencephalography: measures electrical activity non- invasively 20-156 surface electrodes are placed on the scalp, single cell recordings: behaving animals: Electrodes placed next to cells or inside them.
