PSY100Y5 Chapter Notes - Chapter 4: Superior Colliculus, Occipital Lobe, Ponzo Illusion
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PSY100Y5 Full Course Notes
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Document Summary
Synesthesia: condition when perceptual or cognitive activities (eating, reading) triggers exceptional experiences (of colour, taste) Perception: selection, organization, interpretation of sensory input. Psychophysics: study of how physical stimuli are translated into psychological experiences. Threshold: dividing point between energy levels that do and don"t have a detectable effect: when room gets dark, lamp will turn on at a certain level of dark intensity (threshold) Absolute threshold: the minimum amount of sensation an organism can detect, for a specific type of sensory input: vision: a candle flame seen at 50km on a dark clear night. Just noticeable difference (jnd): similar to absolute threshold. The smallest difference in the amount of stimulation that a specific sense can detect. Weber"s law: the size of a jnd is a constant proportion of the size of the initial stimulus: weber"s fraction for lifting weights is 1/30 meaning to tell different of 300g weight is the.
