Memory: Duration, capacity and encoding

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- Duration, capacity and encoding

Duration: LTM unlimited, STM measured in seconds

  • Shepard - 50% of photos recalled after 4 months
  • Bahrick et al. - Yearbook photos, recall 70% accurate after 48 years
  • Peterson and Peterson - constanant syllables, max 18 seconds


  • Marsh et al. - duration may be only 2 seconds if no expection of recall.
  • Nairne


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