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Chapter 3: Perception
- Perceptual Constancy: brain illusions
- Shape
Constancy-adjust for
changes in image shape
- Brightness Constancy-adjust
for changes in color/brightness
- Size Constancy-depth
perception
- Shape
Constancy-adjust for
changes in image shape
- Gestalt Principals-the brain
forces patterns onto visual
stimulus
- Figure-ground illusion: brain focuses on figure
and ignores the ground
- Proximity-objects closer together
perceived as part of group
- Similarity-objects that look
similar belong together
- Closure-tendency to see
incomplete figures as complete
- Continuity-mind looks for simplest
pattern that is continuous
- Contiguity-perceive things that occur close
in time as being related
- Common region-perceive objects that are
in a common area as being part of a group
- Figure-ground illusion: brain focuses on figure
and ignores the ground
- Depth Perception-ability to see
the world in 3-D
- Monocular Cues-perceived by one eye
alone
- Interposition-something is between the
viewer and the background
- Linear Perspective
- Relative Size-smaller=farther
away
- Texture Gradient-detail up close
- Aerial Perspective-know position in
relation to image
- Motion Parallax- when a person is moving,
objects at different distances seem to be
moving at different speeds
- Interposition-something is between the
viewer and the background
- Binocular Cues-perceived by both
eyes
- Convergence-eyes get closer together as the
object gets closer
- Binocular Diversity-images in each
eye are more similar the farther
away an object is
- Convergence-eyes get closer together as the
object gets closer
- Monocular Cues-perceived by one eye
alone
- Stroboscopic Effect-a rapid series of still pictures appear as movement
- Autokinetic Effect-small light in a dark room appears to be
moving because there are no other cues to indicate that its
not
- Phi-lights illuminated in a series appear to move
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