Cognition exam 2a part 1

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jeremygregory25
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284961
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Cognition exam 2a part 1
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2014-10-15 19:36:04
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cognitive psychology chapter 5 part 1
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  1. Describe what short-term memory is?
    a temporary memory store for information that is currently in awarness
  2. Miller's framework results
    a memory span task that found that memory has a limited capacity of 7 items +/- 2
  3. Describe what recording/chunking is
    the process of grouping items together (creating chunks), and then remembering the newly formed groups (chunks)
  4. Describe what decay is
    forgetting is caused simply by the passage of time
  5. Proactive interferane
    older material interferes with recollection of current stimulus
  6. retroactive interferance
    newer material interferes with recollection of older items (your current phone number interferes with your ability to remember your ability to remember your childhood home number)
  7. Why short-term memory is considered a bottleneck?
    short-term memory is a bottleneck because a lot of sensory register has to go through a short attention span, thus coming up with the 7 +/- 2 approach (has a limited capacity) until it reaches long-term memory
  8. Why recoding/chunking makes it possible to hold more information in short-term memory
    due to clever recording strategies that make it possible to hold its information
  9. Describe how the Brown-Peterson task works and what it investigates
    3-letter stimulus followed by 3-digit number and start counting backwards by 3's.

    Then after some backwards counting, report the 3-letter stimulus

    How well you can rehearse that information without thinking about the three letters
  10. Explain the two different ways in which results from the Brown-Peterson task have been interpreted
    results were interpreted through the definition of decay, and through retroactive inference
  11. Explain the cause of the primacy effect
    accuracy of recall for the early list positions

    Normally quite high, thanks to rehearsal and encoding into long-term memory can be changed by giving more or less time for rehearsal
  12. Explain the cause of the recency effect
    accuracy of recall for the final latest list positions

    Normally high, thanks to availability and recall from short-term memory, and can be changed by giving more or less distractions/interference
  13. Serial position curve
    How well do we do on recalling items on a list depending on the position on the list (in our short-term memory)
  14. The difference between the forgetting of rehearsal and non-rehearsed information and how interference, primacy, and recency effects fit in this context
    In non-rehearsal, the problem is with interference

    In rehearsal, if the amount of information is 7+/- 2, then the information stays there

    However, if it is more, the information goes away, and then you will forget the information in the middle (serial position curve), and either have the primacy effect or the recency effect

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