Sensation & Perception         unit         m12-17         unit 05
m12 - Introduction to     Sensation
Psychophysics beginningsTop-down vs Bottom-Up      Processing
Arocdnicg to rsceearch at Cmabrigde Uinervtisy,  it deosn’t mttaer in waht oredr the ltteers in awrod are, the olny iprmoa...
Left-side of room, close your eyes
Bs r vr mprtnt. Th mk hn nd hlp crps t grw. Thr r  mn knds f bs. N knd s gntl, bt t ds nt wrk hrd.Nthr knd f b s vr mn, bt...
Bs r vr mprtnt. Th mk hn nd hlp crps t grw. Thr r  mn knds f bs. N knd s gntl, bt t ds nt wrk hrd.Nthr knd f b s vr mn, bt...
Absolute thresholdSignal detection
Absolute thresholdSignal detection
Stairway to Heaven“Yes there are two paths that you can go by,but in the long run there’s still time tochange the road you...
Stairway to Heaven“Yes there are two paths that you can go by,but in the long run there’s still time tochange the road you...
Stairway to Heaven“Oh here’s to my sweet Satan. The one whoselittle path would make me sad, whose power isSatan.”
Stairway to Heaven“Oh here’s to my sweet Satan. The one whoselittle path would make me sad, whose power isSatan.”
Another One Bites the        Dust “Another one bites the dust Another one bites the dust Another one bites the dust”
Another One Bites the        Dust “Another one bites the dust Another one bites the dust Another one bites the dust”
Another One Bites the        Dust “It’s fun to smoke marijuana It’s fun to smoke marijuana It’s fun to smoke marijuana”
Another One Bites the        Dust “It’s fun to smoke marijuana It’s fun to smoke marijuana It’s fun to smoke marijuana”
“subliminal” associations
“subliminal” associations
“subliminal” associations
“subliminal” associations
“subliminal” associations
“subliminal” associations
Difference threshold (Just noticeabledifference)Weber’s Law    Light must differ by 8%    Weight by 2%    Tone by 0.3%
Sensory adaptationSensory attention        x Cocktail party effect
What do you see?
Whato you see?  h doW
Whato you see?  h doW
m13 - Vision
Hue = wavelengthIntensity = amplitude
Normal   Nearsighted   Farsighted
Ganglion Cell Activity
Ganglion Cell Activity
Ganglion Cell Activity
Feature Detection Cells
Visual Processing
Visual Processing procedure
What do you see?
What do you see?
What do you see?
What do you see?
What do you see?
Color VisionYoung-Helmholtztrichromatic theory  additive color  mixing
Color VisionOpponent-Process Theory after-image effects . . .
Maybe color processing seems to occur intwo stages: Retinal cones respond like Young- Helmholtz trichromatic theory Signal...
Color Constancy
Color Constancy
Color Constancy
m14 - Hearing
Amplitude = volume Frequency = pitch
Amplitude = volume Frequency = pitch
Echolocation
Place TheoryFrequency Theory
Conduction Hearing LossSensorineural Hearing Loss
m15 - Other Senses
TouchPressure, warmth, cold, and pain   •   Only pressure has identifiable sensory       neuronsPain is adaptive   •   Hype...
Taste•   Sweet, sour, salty, bitter ...    and umami•   Super-tasters
Vestibular Sense vs Kinesthesis
U05 Sensation slides 2011
U05 Sensation slides 2011
U05 Sensation slides 2011
U05 Sensation slides 2011
U05 Sensation slides 2011
U05 Sensation slides 2011
U05 Sensation slides 2011
U05 Sensation slides 2011
U05 Sensation slides 2011
U05 Sensation slides 2011
U05 Sensation slides 2011
U05 Sensation slides 2011
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U05 Sensation slides 2011

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  • U05 Sensation slides 2011

    1. 1. Sensation & Perception unit m12-17 unit 05
    2. 2. m12 - Introduction to Sensation
    3. 3. Psychophysics beginningsTop-down vs Bottom-Up Processing
    4. 4. Arocdnicg to rsceearch at Cmabrigde Uinervtisy, it deosn’t mttaer in waht oredr the ltteers in awrod are, the olny iprmoatnt tihng is taht the fristand lsat ltteer are in the rghit pcale. The rset can be a toatl mses and you can sitll raed it wouthit pobelrm. Tihs is buseace the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe.
    5. 5. Left-side of room, close your eyes
    6. 6. Bs r vr mprtnt. Th mk hn nd hlp crps t grw. Thr r mn knds f bs. N knd s gntl, bt t ds nt wrk hrd.Nthr knd f b s vr mn, bt t s a hrd wrkr. Ths b mksmch mr hn thn th gntl b. N mn thght tht mtng thstw bs wld b a gd d. H thght crssng th tw knds f bs wld mk a gntl, hrd-wrkng b. Tht ws a bg mstk.
    7. 7. Bs r vr mprtnt. Th mk hn nd hlp crps t grw. Thr r mn knds f bs. N knd s gntl, bt t ds nt wrk hrd.Nthr knd f b s vr mn, bt t s a hrd wrkr. Ths b mksmch mr hn thn th gntl b. N mn thght tht mtng thstw bs wld b a gd d. H thght crssng th tw knds f bs wld mk a gntl, hrd-wrkng b. Tht ws a bg mstk.
    8. 8. Absolute thresholdSignal detection
    9. 9. Absolute thresholdSignal detection
    10. 10. Stairway to Heaven“Yes there are two paths that you can go by,but in the long run there’s still time tochange the road you’re on”
    11. 11. Stairway to Heaven“Yes there are two paths that you can go by,but in the long run there’s still time tochange the road you’re on”
    12. 12. Stairway to Heaven“Oh here’s to my sweet Satan. The one whoselittle path would make me sad, whose power isSatan.”
    13. 13. Stairway to Heaven“Oh here’s to my sweet Satan. The one whoselittle path would make me sad, whose power isSatan.”
    14. 14. Another One Bites the Dust “Another one bites the dust Another one bites the dust Another one bites the dust”
    15. 15. Another One Bites the Dust “Another one bites the dust Another one bites the dust Another one bites the dust”
    16. 16. Another One Bites the Dust “It’s fun to smoke marijuana It’s fun to smoke marijuana It’s fun to smoke marijuana”
    17. 17. Another One Bites the Dust “It’s fun to smoke marijuana It’s fun to smoke marijuana It’s fun to smoke marijuana”
    18. 18. “subliminal” associations
    19. 19. “subliminal” associations
    20. 20. “subliminal” associations
    21. 21. “subliminal” associations
    22. 22. “subliminal” associations
    23. 23. “subliminal” associations
    24. 24. Difference threshold (Just noticeabledifference)Weber’s Law Light must differ by 8% Weight by 2% Tone by 0.3%
    25. 25. Sensory adaptationSensory attention x Cocktail party effect
    26. 26. What do you see?
    27. 27. Whato you see? h doW
    28. 28. Whato you see? h doW
    29. 29. m13 - Vision
    30. 30. Hue = wavelengthIntensity = amplitude
    31. 31. Normal Nearsighted Farsighted
    32. 32. Ganglion Cell Activity
    33. 33. Ganglion Cell Activity
    34. 34. Ganglion Cell Activity
    35. 35. Feature Detection Cells
    36. 36. Visual Processing
    37. 37. Visual Processing procedure
    38. 38. What do you see?
    39. 39. What do you see?
    40. 40. What do you see?
    41. 41. What do you see?
    42. 42. What do you see?
    43. 43. Color VisionYoung-Helmholtztrichromatic theory additive color mixing
    44. 44. Color VisionOpponent-Process Theory after-image effects . . .
    45. 45. Maybe color processing seems to occur intwo stages: Retinal cones respond like Young- Helmholtz trichromatic theory Signal processed via opponent-process in the central nervous system
    46. 46. Color Constancy
    47. 47. Color Constancy
    48. 48. Color Constancy
    49. 49. m14 - Hearing
    50. 50. Amplitude = volume Frequency = pitch
    51. 51. Amplitude = volume Frequency = pitch
    52. 52. Echolocation
    53. 53. Place TheoryFrequency Theory
    54. 54. Conduction Hearing LossSensorineural Hearing Loss
    55. 55. m15 - Other Senses
    56. 56. TouchPressure, warmth, cold, and pain • Only pressure has identifiable sensory neuronsPain is adaptive • Hyperalgesia and Congenital AnalgiaPhantom LimbGate Control Theory
    57. 57. Taste• Sweet, sour, salty, bitter ... and umami• Super-tasters
    58. 58. Vestibular Sense vs Kinesthesis

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