PSYC 1010 Lecture Notes - Detection Theory, Absolute Threshold, Interposition
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PSYC 1010 Full Course Notes
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Sensation: the process whereby our sensory organs gather information from the outside world. Perception: the process whereby the brain organizes and interprets these sensations. Psychophysics: the study of how physical stimuli are translated into psychological experience. How much of a stimulus is necessary for you to detect it: absolute threshold; the point at which a person can detect the lowest intensity [of light] 50% of the time. [sound] a watch ticking from 6m away: difference threshold (just-noticeable difference; jnd); is the smallest difference in stimulation required to discriminate one stimulus from another, You don"t just have one particular stimulus, rather two stimuli are presented: reference stimulus; does not change [in brightness, other [dot] continues to change till it matches reference stimulus. 3 types of perceptual organization: form perception; how stimuli are organized into meaningful patterns and shapes, gestalt psychologists- shape or whole" how we perceive things in entirety.