Memory

Memory

1. STM

   • Capacity
     • Miller
       • Pps given a series of information
         • Asked for immediate recall
           • pps able to recall 5-9 chunks
             • Simon
               • As size of chunks increased, recall decreased
                 • Size of chunk determines recall, not number
   • Duration
     • Peterson and Peterson
       • 24 students presented with nonsense trigrams
         • count back in 3's and 4's from number
           • prevent rehearsal
           • interference task may have displayed information
         • recall delinced with time
           • 3 seconds: 80% 18 seconds: 10%
             • duration is 20secs
             • information will decay unless rehearsed
         • lacks realism
           • does not honestly capture duration
   • Encoding
     • Baddely
       • Pps given 4 lists to remember
         • words with similar sounds were harder to recall
           • when recalling from STM, pps made more acoustic errors
             • STM uses an acoustic code
         • similar meaning had little effect on recall
         • Lab experiments
           • Low validity