PSYC 1020 Lecture Notes - Lecture 3: Detection Theory, Absolute Threshold, Neural Adaptation

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21 May 2017
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The process by which a stimulated receptor (such as the eyes or ears) creates a pattern of neural messages that represent the stimulus in the brain, giving rise to our initial experience of the stimulus. A mental process that elaborates and assigns meaning to the incoming sensory patterns. Absolute threshold the lowest level of stimulation that a person can detect difference threshold the smallest change in stimulation that a person can detect sensory adaptation. Diminished sensitivity as a consequence of constant stimulation signal detection theory. Sensation depends on the characteristic of the stumulus, the background simulations, and the detector. transduction. Conversion of one form of energy into another. For example, some cells are stimulated by green and inhibited by red; others are stimulated by red and inhibited by green optic nerve the nerve that carries neural impulses from the eye to the brain percept.

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