PSY-0001 Chapter Notes - Chapter 5: Trichromacy, Thalamus, Prefrontal Cortex
29 Sep 2016
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Document Summary
Perception the brain"s processing, organization, and interpretation of sensory information: results in our conscious experience of the world construction of useful information about a particular sensation. Bottom-up processing perception based on the physical features of the stimulus top-down processing how knowledge, expectations, or past experiences shape the interpretation of sensory information: context affects perception, ability to make sense of nonsensical/incorrect stimuli. Difference threshold aka just noticeable difference; smallest difference between two stimuli that you can notice: minimum amount of change required for a person to detect a difference. Helps us continue objects that are blocked/partially obstructed: closure: tendency to complete figures that have gaps, illusory contours: we sometimes perceive contours and cues to depth even when they do not exist. The brain knows how much the eyes are converging and can thus perceive distance. Objects above horizon that appear lower in the visual field are perceived as being farther away.
