Ch6 ppt

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Ch6 ppt

  1. 1. Myers’ PSYCHOLOGY (7th Ed) Chapter 6 Perception James A. McCubbin, PhD Clemson University Worth Publishers
  2. 2. Perception  Selective Attention focus of conscious awareness on a particular stimulus
  3. 3. Change Blindness
  4. 4. Perceptual Illusions
  5. 5. Perceptual Illusions
  6. 6. Perceptual Illusions
  7. 7. Perceptual Illusions
  8. 8. Perceptual Illusions
  9. 9. Perceptual Illusions
  10. 10. Perceptual Illusions
  11. 11. Perceptual Organization: Gestalt  Visual Capture  tendency for vision to dominate the other senses  Gestalt--an organized whole  tendency to integrate pieces of information into meaningful wholes
  12. 12. Perceptual Organization: Gestalt  Grouping  the perceptual tendency to organize stimuli into coherent groups  Grouping Principles  proximity--group nearby figures together  similarity--group figures that are similar  continuity--perceive continuous patterns  closure--fill in gaps  connectedness--spots, lines, and areas are seen as unit when connected
  13. 13. Perceptual Organization: Illusory Contours
  14. 14. Perceptual Organization  Figure and Ground--organization of the visual field into objects (figures) that stand out from their surroundings (ground)
  15. 15. PerceptualOrganization: Grouping Principles
  16. 16. PerceptualOrganization: Closure  Gestalt grouping principles are at work here.
  17. 17. PerceptualOrganization: Grouping Principles  Gestalt grouping principles are at work here.
  18. 18. Perceptual Organization: Depth Perception  Depth Perception  ability to see objects in three dimensions  allows us to judge distance  Binocular cues  retinal disparity  images from the two eyes differ  closer the object, the larger the disparity  convergence  neuromuscular cue  two eyes move inward for near objects
  19. 19. Perceptual Organization: Depth Perception Visual Cliff
  20. 20. Perceptual Organization: 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
  21. 21. Perceptual Organization: Depth Perception Relative Size
  22. 22. Perceptual Organization: Depth Perception Interposition
  23. 23. 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
  24. 24. Perceptual Organization: Depth Perception Relative Height
  25. 25. Perceptual Organization: Depth Perception Perspective Techniques
  26. 26. Perceptual Organization: Depth Perception Light and Shadow
  27. 27. Perceptual Organization: Depth Perception Illusory Depth
  28. 28. Perceptual Constancy  Perceptual Constancy  perceiving objects as unchanging even as illumination and retinal image change  color  shape  size
  29. 29. Perceptual Organization
  30. 30. Perceptual Organization: Depth Perception Illusory Depth Explanation
  31. 31. Perceptual Organization: Muller-Lyer Illusion
  32. 32. Perceptual Organization: Size-Distance Relationship
  33. 33. Perceptual Organization- Brightness Contrast
  34. 34. PerceptualOrganization: Grouping Principles  Impossible doghouse
  35. 35. Sensory Restriction: Blakemore & Cooper, 1970  Kittens raised without exposure to horizontal lines later had difficulty perceiving horizontal bars.
  36. 36. 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
  37. 37. Perceptual Set: Schemas  What you see in the center is influenced by perceptual set
  38. 38. Perceptual Set: Schemas Flying Saucers or Clouds?
  39. 39. Perception and the Human Factor  Human Factors Psychology  explores how people and machines interact  explores how machine and physical environments can be adapted to human behaviors
  40. 40. Perceptual Set: Human Factors 10 Altitude 8 Pilot’s perceived (thousands descent path of feet) 6 4 Altitude looks this much higher 2 Actual 0 descent path 20 18 16 14 12 10 8 6 4 2 Distance from runway (miles)
  41. 41. Is There Extrasensory Perception?  Extrasensory Perception  controversial claim that perception can occur apart from sensory input  telepathy  clairvoyance  precognition  Parapsychology  the study of paranormal phenomena  ESP  psychokinesis

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