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Perception

stedman
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Perception

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    1. Perception Selective Attention Focus of conscious awareness on a particular stimulus

    2. Perception Selective Attention Perceptual Illusions Bottom-Up Processing Top-Down Processing

    3. Perceptual Illusions

    4. Perceptual Organization- Gestalt Visual Capture Tendency for vision to dominate the other senses. Grouping The perceptual tendency to organize stimuli into coherent groups.

    5. Perception of Form Gestalt- an organized whole tendency to integrate pieces of information into meaningful wholes Gestalt rules of grouping Proximity: group nearby figures together Similarity: group figures that are similar Closure: fill in gaps Continuity: perceive continuous patterns Connectedness: spots, lines and areas are seen as unit when connected

    6. Perceptual Organization- Grouping Principles

    7. Perceptual Organization Figure and Ground: organization of the visual field into objects (figures) that stand out from their surroundings (ground)

    8. Depth Perception Depth Perception ability to see objects in three dimensions allows us to judge distance Binocular cues retinal disparity convergence

    9. Depth Perception Monocular cues 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

    10. Perceptual Organization-Depth Perception

    11. Perceptual Organization-Depth Perception

    12. 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

    13. Perceptual Organization-Depth Perception

    14. Perceptual Organization

    15. Motion Perception Real motion Apparent motion stroboscopic motion phi phenomenon

    16. Perceptual Constancy Perceptual Constancy perceiving objects as unchanging despite changes in retinal image color shape size

    17. Sensory Restriction- Blakemore & Cooper, 1970 Kittens raised without exposure to horizontal lines later had difficulty perceiving horizontal bars.

    18. Perceptual Interpretation Perceptual Adaptation (vision) ability to adjust to an artificially displaced visual field prism glasses Perceptual Set a mental predisposition to perceive one thing and not another

    19. Perceptual Set- Schemas What you see in the center is influenced by perceptual set

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