PSYCH-UA 25 Lecture Notes - Lecture 7: Ganglion Cell, Decision-Making, Visual Cortex
13 Oct 2017
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Object or event located in external world. Cells specialized to detect certain kinds of proximal stimuli. Process for converting physical stimuli energy into electrochemical messages for transmission as nerve impulses to the brain. Women have more taste buds than men intensity than others. Definition: study of the relationship between physical stimulus and sensory experience. Threshold: level at which one can detect a stimulus or change of stimulus. Difference threshold or jnd (just noticeable difference): Weber"s law: describes detectable change in stimuli. Constant increments in the intensity of the physical stimulus create progressively smaller perceived increases in intensity. How sensitive is the person to incoming signals (how capable are. Bias (response bias): how likely the person is to say that they detected or they of detecting signals from noise) not a signal when the ability is low. Depends on the benefit or cost of missing or erroneously identifying a signal.
