Rissman_Psych120A_Fall2013_lec07 (final version) (2)

Intervening task depletes working memory for recent

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Unformatted text preview: you should write down as many words as you can remember, in any order. ¨༊  Ready? ¨༊  dime bulb bowl cargo petal smoke book dwarf seat rifle fork lion snake grill lawn plank park uncle dance nurse RECALL! ¨༊  How many? ¨༊  Which ones? dime fork bulb lion bowl snake cargo grill petal lawn smoke plank book park dwarf uncle seat dance rifle nurse Serial PosiJon Effects Give a list of items (1 to 7) ¨༊  Immediate test (free recall) Proportion Recalled ¨༊  1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 1 2 3 4 5 Serial Position 6 7 Serial PosiJon Effects Good recall for words at end of list ¤༊  Based Proportion Recalled ¨༊  Recency effect on working memory 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 1 2 3 4 5 Serial Position 6 7 Serial PosiJon Effects ¨༊  Good recall for items at the beginning of the list Based on long-term memory (more rehearsal for early words) Proportion Recalled ¤༊  Primacy effect 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 1 2 3 4 5 Serial Position 6 7 Primacy & Recency Typical order of recall of items in a free recall tests: ¨༊  Start with items from the end of the list n༆  Recency ¨༊  Then items from the beginning of the list n༆  Primacy ¨༊  Finally report items from the middle Primacy & Recency ¨༊  What happens to recency if you add an intervening task at the end of the li...
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