AP PSYCH 3.4 Visual Perception

Illusions

Physical

• Distortions of scale
• Based on manipulation of monocular cues
  • Messes with depth perception

Physiological

• Visual system gets overstimulates
• Excitement or fatigue of photoreceptors
• Fatigue or overstimulation of feature detectors in the visual cortex

Cognitive

• Mismatch between what you perceive and what you sense
• Takes advantage of top-down processing and perceptual set
• Manipulation of a Gestalt principle

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