Psychology 4

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emilydawn2010
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43358
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Psychology 4
Updated:
2010-10-19 11:34:43
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chapter 4
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  1. SENSATION
    the detection of physical energy by sense organs, which then send information to the brain
  2. PERCEPTION
    the brain's interpertation of raw sensory inputs.
  3. TRANSDUCTION
    the process of converting an external energy or substance into neural activity
  4. ABSOLUTE THRESHOLD
    the lowest level of a stimulus needed for the nervous system to detect a change 50% of the time
  5. SENSORY ADAPTATION
    when we first encounter something it activates.
  6. SUBLIMINAL PERCEPTION
    the processing of sensory information that occurs below the level of conscious awareness. only aspects of it research supports.
  7. PERCEPTUAL CONSTANCY
    • process by which we perceive stimuli consistently across varied conditions.
    • ex. Shape- door whether its open or closed its still a rectangle, Size- near and far.
  8. SELECTIVE ATTENTION
    the process of selecting one sensory channel and ignoring or minimizing others. (broadbent filter theory)
  9. ESP
    • perception of events outside the known channels of sensation.
    • no replication with multiple endpoints.
  10. CORNEA
    part of eye containing transparent cells the focus light on the retina
  11. LENS
    part of the eye that changes curvature to keep images in focus.
  12. RETINA
    membrane at the back of the eye responsible for converting light into neural activity
  13. RODS
    receptor cells in the retina allowing us to see in low levels of light
  14. OPTIC NERVE
    trasmits impluses from the retina to the rest of the brain
  15. DEPTH PERCEPTION
    ability to judge distance and 3-dimensional relations
  16. MONOCULAR CUES
    stimuli that enables us to judge depth using only one eye.
  17. VISUAL CLIFF
    a table with checkered cloth that drops to the floor which has the same cloth, a clear glass surface extends from the table out over the floor. infants hesitate to go past the table b/c of depth perception
  18. HEARING
    audition
  19. COCHLEA
    bony spiral-shaped sense organ used for hearing
  20. BINAURAL CUES
    the presentation of dissimilar sounds to the two ears.
  21. TASTE
    gustatory (linked to sense of smell)
  22. TASTES WE CAN DETECT
    sweet, salty, sour, bitter
  23. SMELL
    olfaction
  24. OLFATCTION AND GUSTATION
    they work hand in hand with each other

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