psych220 CH 3 MIDTERM

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oathkeepr
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204483
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psych220 CH 3 MIDTERM
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2013-03-07 19:21:39
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psych220
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Psych 220 Midterm Chapter 3 notecards
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  1. What is sensation?
    The activation of receptors in the various sense organs.
  2. What are sensory receptors?
    Specialized forms of neurons.
  3.  What is perception?
    It is the interpretation of sensation and seems to follow some basic principles, although individual and cultural differences
  4. Perceptual set
    the tendency to perceive things a certain way because previous experiences or expectations influence those perceptions
  5. Top-Down processing
    the use of preexisting knowledge to organize individual features into a unified whole
  6. Bottom-Up processing
    • the analysis of the smaller features to build up to a complete perception
    • no expectancy to help organize the perception
  7. What are the 2 methods our body uses to ignore unchanging information?
    • habituation
    • sensory adaptation
  8. Habituation - tendency of the _______ to stop attending to constant, unchanging information
    brain
  9. Sensory Adaptation - tendency of ______ cells to become less responsive to a stimulus that is unchanging
    sensory receptor
  10. Sensory Adaptation does not affect which sense?
    Visual system

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