PSYB51H3 Lecture Notes - Lecture 2: Ibm Officevision, Scotopic Vision, Photopic Vision
23 Jun 2012
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Document Summary
Method of limits, method of constant stimuli, method of adjustment, cross-modality matching method, magnitude estimation, Method of cross modality matching would work in a way that one asks the perceived intensity or magnitude of a sound and ask to match that with a source of light in terms of brightness. It is sort of like comparing apples and oranges, but it is shown to be consistent and fairly systematic. Light can be absorbed, reflected, refracted, diffracted, transmitted, Absorbed means energy (in this case light) is taken up, and is not transmitted at all; e. g. , dust, surfaces, filters; Diffracted: bent, or having waves that are spread out, (e. g. , waves of sound or light, as they encounter an obstacle, e. g. , pass through a narrow aperture); whenever waves encounter some sort of an obstacle and thus bend; Provides information about nutrition, perceive possible dangers, circadian rhythm works based on light, social information, sense different seasons (extract sap from trees)
