Duration for LTM and STM studies

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  • Created by: tommy
  • Created on: 30-11-11 16:36

Duration of Short term memory (STM) and long term memory (LTM)

duration refers to how long a memory lasts before it is no longer available.

duration of STM is measured in--seconds and minutes

                                                   LTM--hours and years.

Duration of LTM:

Shepard (1967)

  • tested duration of LTM. He showed participants 612 memorable pictures, one at a time.
  • one hour later they were shown some of these pictures among a set of new pictures and showed perfect recognition.

4 months later they could still remember 50% of the photo's.

Bahrick (1975)

  • asked people of various ages to put names to faces from old yearbooks…


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