2-02-07 WrkMemandLangHO

2-02-07 WrkMemandLangHO - Cognition: Working Memory and...

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    Cognition:  Working Memory and  Language February 2, 2007 © John M. Ackroff 2007
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    Working Memory When a logogen is activated its  associated representations enter  working memory.
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    Recall the following letters
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    Recency In immediate recall, the last few list items are recalled the best Notice that the size of the recency effect does not depend on the length of the list. Nor does it depend on the speed of list presentation
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    Recency When a filled interval intervenes between list presentation and recall, recency disappears.
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    Capacity of Working Memory Working memory has a limited capacity When later items interfere with earlier  items it is called Retroactive  Interference (RI)
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    Recall the letters
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    Familiarity and Meaning Working memory is an activated portion of long-term memory and hence follows long-term memory in the processing sequence. Hence apparent size of working memory is a function of the familiarity of the items. Nevertheless, working memory is perceptual in nature and is disrupted by extraneous perceptual input.
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    Broadbent’s Filter Theory Input Channels Selective Filter Limited Capacity Decision Channel Stimuli Long-term Memory Store Responses (after Triesman)
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    Recall the following words
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    Phonological loop Subjects are likely to  make an error on list  with longer words  and most likely to  make an error on list  with phonologically  similar words. Demonstrates role  of phonological loop  in short-term recall 0 20 40 60 80 100 Control Similar Long Percent perfect list recall
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  Phonological Loop The phonological loop is the system  consisting of auditory working memory and  covert articulation Patient with impaired phonological loop can  not learn foreign vocabulary but is otherwise  unimpaired Correlation of 0.5 between nonword repetition  and vocabulary for children 4-5 years old.
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This note was uploaded on 04/02/2008 for the course PSYCH 340 taught by Professor Ackroff during the Spring '07 term at Rutgers.

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2-02-07 WrkMemandLangHO - Cognition: Working Memory and...

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