PSY 252- Midterm Exam Guide - Comprehensive Notes for the exam ( 18 pages long!)

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5 Oct 2017
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** steven prime would like to develop full course on psychophysics. Sonar tests: basic psychophysical test, can you detect the sound and how far etc. Bulk barn self weighing to see if you have enough- psychophysical tests. Gustav fechner: developed psychophysics field: foundations of psychophysics psychology is the birth of philosophy and neurophysiology. Stimulus intensity: arbitrary units of how bright or loud something is. When the stimulus is very low you may not be able to detect it despite the fact that it is there: absolute threshold is the lowest level that still allows the stimulus to be detected. As stimulus gets turned up slowly, the change may not always be detected: the point where one can detect the difference is called the difference threshold. Psychophysics is trying to solve 3 major problems: Detection: how well do you detect the stimulus (light being visible)