TB7 P&C Lecture 2; Depth Perception

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  • Created by: mint75
  • Created on: 18-12-15 11:34

1. What is motion parallax?

  • A MONOCULAR depth cue in which we view objects that are closer to us as moving faster than objects that are further away from us
  • A BINOCULAR depth cue in which we view objects that are closer to us as moving faster than objects that are further away from us
  • A MONOCULAR depth cue in which we view objects that are closer to us as moving slower than objects that are further away from us
  • A BINOCULAR depth cue in which we view objects that are closer to us as moving slower than objects that are further away from us
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Other questions in this quiz

2. What is crossed disparity?

  • Objects positioned closer than the fixation point on the horopter have crossed disparity
  • Objects positioned further from the fixation point on the horopter have crossed disparity

3. If I closed my left eye, and the target was closer than my fixation point, which diplopic image would disappear?

  • Both images
  • Right image
  • Neither image
  • Left image

4. How do random dot stereograms show how stereopsis works re; binocular disparity?

  • Disparity and depth precede edge extraction in RDS. Because some dots are shifted laterally with respect to others, these dots in the displaced square do not fall on corresponding points on both eyes --> they have disparity
  • Edge extraction precedes disparity and depth in RDS. Because some dots are shifted laterally with respect to others, these dots in the displaced square do not fall on corresponding points on both eyes --> they have disparity
  • The edges are found, the disparity is calculated and the depth is determined

5. How does convergence work?

  • A MONOCULAR depth cue in which we view objects that are closer to us as moving faster than objects that are further away from us
  • How much your eyes need to move to focus on an object (objects closer will need more movement than those further away)
  • The ability to stretch and relax the lens, the degree of strain is translated into the distance of the object
  • The perception of depth can be increased by artificially creating shadow and a longer optical path to edges

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