Fundamentals of Accessibility in New Media: Gestalt Principles of Perception
Principles of Perception
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Transcript of Principles of Perception
PRINCIPLES OF PERCEPTION
Perceptual Inference• Definition: When we fill-in holes between our sensations
to develop a perception.• Perceptual Inference depends on experience
• Ex. Our brain helps cover movie goofs / continuity errors
Gestalt• A pattern formed based on organizing bits of info into
more meaningful wholes• Ex. The story of the blind men and the elephant.
Gestalt Principles• Closure: we “close” open objects
Gestalt Principles• Continuity: More likely to continue patterns, rather than
disrupted ones
Gestalt Principles• Similarity: Similar objects are grouped, dissimilar ones
stick out.
Gestalt Principles• Proximity: Objects close together are perceived as one
object
Figure-Ground Perception• An object is separated from its background• Visually, one area is dark, other is lighter.• Hearing, able to pick out a melody from the rest of the
song, one person’s voice in a crowd.
Figure-Ground
Learning to Perceive • Senses are Nature, Perception Acquisition is nurture.
• Ex. Babies learn to perceive the difference between a human face and a blank oval.
• Needs and wants will make us more likely to perceive objects• Ex. hungry people can more readily perceive food.
Constancy• We perceive objects the same way, regardless of changes
in conditions• Ex. A stapler is perceived as being the same even if lighting and
your angle towards it are different.
Illusions• Incorrect perceptions, misrepresenting physical stimuli
Illusions• The legendary works of M.C. Esher
ESP (Extrasensory Perception)• The belief that humans have additional senses beyond
the ones we readily acknowledge• Ex. speaking to the dead, etc.