Form Perception Flashcards
Gestalt principle
the whole is greats than the sum of its parts
1) figure-ground
ability to distinguish an object from its background
flowers and floral wallpaper
2) proximity
object close together belong together
3) closure
the tendency to lose gabs in to perceive a whole effect
4) similarity
the tendency to group together things that are physically similar
5) continuity
the ability to perceive a simple continuous form rather than a combination of awkward forms
6) common fate
the tendency to group things together that move and change in the same way
bottom-up processing
recognition guided by features of a stimulus
top-down processing
recognition guided by beliefs and expectations
priming effect
processing is more efficient if primed to expect a certain category
bidirectional processing
bottom-up and top-down processing working togehter
geon theory
- we have 36 geons
- using just these we recognize over 150 million objects
template theory
we store many diffrent templates in memory
if unfamiliar object seen, create a new template
prototype theory
we atore typical / ideal exa,lpe in memory, this is more flexible
1) shape constancy
no matter perspective of location
2) location constancy
despite mving on retina pecieved to be stationary (tree while driving by)
3) size constancy
despite sie of retinal image (close vs. far)
4) brightness constancy
despite reflecting more or less light
5) colour constancy
despiteillumination changes
illusions
brain processing ambiguous or partial visual information