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Sensation Slides
The document covers topics in sensation and perception including psychophysics, sensory thresholds, vision, hearing, touch, taste, and the vestibular sense. It discusses concepts like absolute threshold, signal detection, opponent-process theory of color vision, place and frequency theories of hearing, and gate control theory of pain. Examples of musical lyrics and optical illusions are included throughout to illustrate various perceptual phenomena.
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Sensation Slides
- 1. Sensation & Perception unit m12-17
- 2. m12 - Introductionto Sensation
- 3. Psychophysics beginnings Top-down vsBottom-Up Processing
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- 6. Stairway to Heaven “Yesthere are two paths that you can go by, but in the long run there’s still time to change the road you’re on”
- 7. Stairway to Heaven “Yesthere are two paths that you can go by, but in the long run there’s still time to change the road you’re on”
- 8. Stairway to Heaven “Ohhere’s to my sweet Satan. The one whose little path would make me sad, whose power is Satan.”
- 9. Stairway to Heaven “Ohhere’s to my sweet Satan. The one whose little path would make me sad, whose power is Satan.”
- 10. Another One Bitesthe Dust “Another one bites the dust Another one bites the dust Another one bites the dust”
- 11. Another One Bitesthe Dust “Another one bites the dust Another one bites the dust Another one bites the dust”
- 12. Another One Bitesthe Dust “It’s fun to smoke marijuana It’s fun to smoke marijuana It’s fun to smoke marijuana”
- 13. Another One Bitesthe Dust “It’s fun to smoke marijuana It’s fun to smoke marijuana It’s fun to smoke marijuana”
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- 20. Difference threshold (Justnoticeable difference) Weber’s Law Light must differ by 8% Weight by 2% Tone by 0.3%
- 21. Sensory adaptation Sensory attention x Cocktail party effect
- 22. What do yousee?
- 23. Whato you see? h do W
- 24. Whato you see? h do W
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- 26. Hue = wavelength Intensity= amplitude
- 28. Normal Nearsighted Farsighted
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- 37. What do yousee?
- 38. What do yousee?
- 39. What do yousee?
- 40. What do yousee?
- 41. What do yousee?
- 42. Color Vision Young-Helmholtz trichromatic theory additive color mixing
- 43. Color Vision Opponent-Process Theory after-image effects . . .
- 47. Color processing seemsto occur in two stages: Retinal cones respond like Young- Helmholtz trichromatic theory Signal processed via opponent-process in the central nervous system
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- 54. Amplitude = volume Frequency = pitch
- 55. Amplitude = volume Frequency = pitch
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- 59. Conduction Hearing Loss SensorineuralHearing Loss
- 60. m15 - OtherSenses
- 61. Touch Pressure, warmth, cold,and pain • Only pressure has identifiable sensory neurons Pain is adaptive • Hyperalgesia and Congenital Analgia Phantom Limb Gate Control Theory
- 62. Taste • Sweet, sour, salty, bitter ... and umami • Super-tasters
- 64. Vestibular Sense vsKinesthesis