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gestalt
an organized whole- sensations are usually organized into clusters
figure-ground
organization of visual field into objects that stand out from surroundings
what does form perception group together?
stimuli
ex: proximity, closure, similarity
depth perception
2d images organized into 3d
visual cliff
a study used on children to prove depth perception
ex: draw a steep cliff and they believe it is there
binocular cues
depth cues dependent on 2 eyes
retinal dispority
difference between the images from each eye
monocular cues
depth cues that need one eye
ex: light and shadow effect
How does the brain compute motion?
as retreating and enlarging
How is continous movement perceived?
rapid imagery
phi phenomenon
the illusion of movement by blinking lights
perceptual constancy
ability to reorganize objects without being tricked by changes
ex: a line is the same size despite arrows making one seem larger
what does lightness depend on?
relative luminance
color constancy
perceiving familiar objects with consistent colors even if illumination alters
what influences perception?
context, experiences, culture, upbringing, beliefs, expectations, and values
the difference in perception is the origin of what?
biases and prejudices
top down
perception driven
ex: using what you already know to identify
bottom up
basic sensory
ex: /-\ A /-\
Why may odor perception vary?
culture
selective attention
directing your focus
Note 
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