Psychology 2015A/B Study Guide - Midterm Guide: Visual Cortex, Parietal Lobe, Fusiform Face Area
25 Apr 2018
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When viewing a stimulus with a specific property, neurons tuned to that property fire. Selective adaptation causes two things to happen: neural firing rate decreases, neuron fires less when that stimulus is immediately presented again. Selective adaptation and selective rearing refer to experiments that were designed to measure relationship c (physiology behavior) Animals are reared in environments that contain only certain types of stimuli. Neurons that respond to these stimuli will become more predominate due to neural plasticity. Blakemore and cooper (1970) reared kittens in tubes with either horizontal or vertical lines, both behavioral and neural responses showed development of neurons for environmental stimuli. Specificity coding: specific neurons responding to specific stimuli. Problem too many different stimuli to assign specific neuron (most neuron respond to number of different stimuli) Large number of stimuli can be coded by few neurons. Population coding: pattern of firing across many neuron code specific objects. Sparse coding: only relatively small number of neurons necessary.
