Sensation and Perception

• What is sensation in the context of sensory receptors?

  Detection of a stimulus in the environment
• How does the brain process sensation?

  It interprets information from the five senses
• What leads to perception?

  Interpretation of sensory information by the brain
• What is the difference between sensation and perception?

  Sensation is detection; perception is interpretation
• What does Gregory’s constructivist theory state about perception?

  It sees a difference between sensation and perception
• What does Gibson’s direct theory propose about sensation and perception?

  It sees sensation and perception as the same
• What is the Ponzo illusion?

  Misinterpreted depth cue affecting line length perception
• What do people perceive in the Ponzo illusion?

  The higher horizontal line as longer
• What is the Müller–Lyer illusion?

  Misinterpreted depth cue with vertical lines
• What do people perceive in the Müller–Lyer illusion?

  The vertical line with outgoing fins as longer
• What can be seen in Rubin’s vase image?

  Two faces and a vase
• What is the Ames Room illusion?

  Misinterpreted depth cue with trapezoidal shape
• Who invented the Ames Room?

  Ames in 1934
• What happens when two people stand in the Ames Room?

  One appears much bigger than the other
• What are the key differences between sensation and perception?

  • Sensation: Detection of stimuli
  • Perception: Interpretation of sensory information
  • Sensation is the initial response; perception is the understanding
• What are the main theories of perception?

  • Gregory’s constructivist theory: Differentiates sensation and perception
  • Gibson’s direct theory: Treats sensation and perception as the same