Visual Cognition

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  • Created by: mint75
  • Created on: 26-04-15 15:37

1. What did Posner & Mitchell (1967) find?

  • Pps were slowest at vowel matches and fastest at consonant matches
  • Pps were all fastest when repsonding to physical form matches and slowest when responding to consonant matches
  • Pps were equally fast at all matching tasks
  • Pps were all faster at responding to name matches rather than physical
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2. In the early stages of visual processing model, which stage has the slowest readout and which has the fastest readout?

  • Equally fast
  • Both stages co-occur
  • Visual code=fastest, name code= slowest
  • Name code=fastest, visual code=slowest

3. What is a temporal hierarchy?

  • The speed at which pictoral information is recovered
  • Knowledge of how objects behave and appear arranged in a hierarchy of highest to lowest frequency
  • Different forms of information take different amounts of time to recover from visual input
  • Another name for iconic memory

4. What did early work by Posner & Mitchell (1967) aim to show?

  • The time taken for pps to respond to the task represents the cog. processes, how long it takes to recover and run visual/name codes
  • How accurate pps guesses were when choosing matching letters
  • How accurate a pps cog. processes can be when asked to match letters

5. What did a mental transformation study using rotated letters by Cooper&Shepard (1973) show?

  • That there was evidence of a visual code store during matching
  • That pps mentally simulated the physical event of a rotated letter in order to efficiently perform during matching
  • Pps retrieved the information of the letter form from the visual code
  • That mental simulation was not an efficient way of completing matching tasks


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