Perceptual organization depth perception
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Perceptual Organization: Depth Perception. Depth Perception ability to see objects in three dimensions allows us to judge distance. Visual Cliff. Depth Perception. Binocular cues – depend on use of two eyes retinal disparity images from the two eyes differ

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Perceptual organization depth perception
Perceptual Organization: Depth Perception

  • Depth Perception

    • ability to see objects in three dimensions

    • allows us to judge distance

Visual Cliff


Depth perception
Depth Perception

  • Binocular cues – depend on use of two eyes

    • retinal disparity

      • images from the two eyes differ

      • closer the object, the larger the disparity

      • Finger sausage example

    • convergence

      • neuromuscular cue

      • two eyes move inward for near objects


Perceptual organization depth perception1
Perceptual Organization: Depth Perception

  • Monocular Cues – depth cues available to either eye alone

    • relative size

      • smaller image is more distant

    • interposition

      • closer object blocks distant object

    • relative clarity

      • hazy object seen as more distant

    • texture coarse --> close fine --> distant






Perceptual organization depth perception4
Perceptual Organization: Depth Perception

  • Monocular Cues (cont.)

    • relative height

      • higher objects seen as more distant

    • relative motion

      • closer objects seem to move faster

    • linear perspective

      • parallel lines converge with distance

    • relative brightness

      • closer objects appear brighter








  • Phi Phenomenon – illusion of movement created when two or more adjacent lights blink on and off in quick succession

  • How do movies work?


Perceptual constancy
Perceptual Constancy

  • Perceptual Constancy

    • perceiving objects as unchanging even as illumination and retinal image change

      • color

      • shape

      • size



Perceptual organization depth perception10
Perceptual Organization: Depth Perception

Illusory Depth Explanation


Perceptual organization muller lyer illusion
Perceptual Organization: Muller-Lyer Illusion

Cultural Experiences affects susceptibility to the Muller-Lyer illusion!






Sensory restriction blakemore cooper 1970
Sensory Restriction:Blakemore & Cooper, 1970

  • Kittens raised without exposure to horizontal lines later had difficulty perceiving horizontal bars.


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