PSC 130 Lecture Notes - Lecture 2: Henry Molaison, Free Recall, Temporal Lobe
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January 12, 2017: chapter 2: short term memory vs. long term memory, what is the capacity of stm (short term memory), miller (1956) memory/digit span. *accurate recall of 7 +/- 2 items: study: list of digits, letters, or words (2, 3, 4 items, test: recall items in the correct order, capacity of stm is about 7 items. Increasing stm capacity: chunking breaking the string into meaningful parts; can increase the apparent capacity of. Stm: ex: cbsibmcnndoa cbs-ibm-cnn-doa, what is the duration of stm, several seconds, what type of information does stm hold, phonological information. *the early items in the list were more often rehearsed: primacy may be related to the extra rehearsals that the first items in the list receive, dissociating stm and ltm. Increase study time 1 vs. 2 sec/item (murdock, 1962: study time dissociates stm and ltm. *influences the ltm portion of curve but leaves the stm portion unaffected. *influences stm but leaves ltm portion of curve unaffected.
