Chapter 3

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Chapter 3
2010-06-06 21:07:49

Perception II
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  1. Attention
    Concentration of mental activity that allows limited portion to a lot of infomation to sensory and memory
  2. Divided Attention Task
    Two or more thing and accuracy may decrease
  3. Selective-Attention Task
    Pay attention to certain information but not others
  4. Dichotic Listening
    Listen to one message in one ear, but register another, but still listening to the first one

    Shadow-repeat message heard
  5. Working Memory
    Immediate memory for info currently processing
  6. Stroop Effect
    People take a long time name the ink color when it is being printed with a incongrent word

  7. The Isolated-Feature/Combined-Feature Effect
    If the target is different from irrelevent items in the display one can quickly identify it
  8. The Feature-Present/Feature-absent effect
    Search is rapid when looking for a particular feature that is present

    "Pop Out"
  9. Saccadic Eye Movement
    Ability to bring retina to position over words to read

    Fovea- Small central region in retina

    Regression- To move backward to earlier material in sentence
  10. Fixation
    Visual system pauses for 50 to 500 milli seconds to get info that is useful from reading

    Perceptual span- number of letters and spaces percieved in a fixation
  11. Alerting Attention Network
    Making one sensitive to new stimuli and keep on alert for a long periods
  12. Orienting Attention Network
    Attention for visual search and shift attention to various spatial locations

    Active in Parietal lobe of right hemisphere- trouble with visual search on the left side

    Increased blood flow to parietal cortex-result from doing a PET scan
  13. Unilateral Neglect
    Spatial deficit for one half of visual field
  14. Executive Attention Network
    When a task features conflict

    Top-Down Process

    Ex- state use of each noun in a list
  15. Bottleneck Theory
    Early theory that stats one limits the quantity of infomation to which one can pay attention to

    Too simple

    Infomation is lost thru many steps
  16. Feature-Intergration Theory
    Distributed Attention- Allows one to register all features automatically

    Focused Attention- One object at a time- ex. Which shape goes with which color
  17. Illusory Conjunction
    Inapproiate combination of features, combining a shape with a nearby color

    Ex. Distributed attention


    Dax/Kay- Day
  18. Binding Problem
    Example- Red apple, red color/round shape
  19. Consciouness
    Awareness that people have about the outside word and their perceptions, image,thoughts,memories and feelings
  20. Ironic Effects of Mental Control
    Efforts that backfire when attempt to control the contents of our consciousness does not work
  21. Blindsight
    A unusual kind of vision without awareness

    Most info is registered on the retina and travels to visual cortex/ however portion goes to other locations on the cerebral cortex, outside the visual cortex