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Psych 350: Exam 1

Perception

TermDefinition
Sensation Low-level processing of basic information from external world by sensory receptors
Perception The way in which a person interprets sensations/sensory info, enabling us to recognize meaningful objects and events
Low-level perception Acuity, color, brightness
Mid-level perception Pattern, depth, objects
High-level perception Recognition, categorization, intermodal correspondence
2 main methods of testing perception Preferential looking and habituation
Preferential looking A research technique that involves giving an infant a choice of what object to look at
Acuity in infants The sharpness of visual discrimination develops rapidly, approaching that of adults by 8 months; reaches full adult acuity by 3-6 years
Visual habituation -used when an infant shows no preference or as a way to test memory -limitations in early months; adult-like by 3 months
Binocular cues Depth cues that depend on the use of two eyes
Pictorial/monocular cues Distance cues, such as linear perspective and overlap, available to either eye alone
Motion parallax we view objects that are closer to us as moving faster than objects that are further away from us Dynamic cue
Optical expansion The visual image increases as an object comes toward us, causing the background to be occluded
Pattern perception ability to analyze/integrate separate elements of a display into a coherent pattern
Subjective "illusory" contours The perception of contours where none actually exist
Face perception in infants Newborns look longer at faces because they have an innate template of a human face
Perceptual narrowing When the brain uses environmental experiences to shape perceptual abilities
Advantages/disadvantages of perceptual narrowing -improves perception of things that people experience often -decline in ability to perceive some things to which they aren't often exposed
Created by: lnamugenyi
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