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HM_stm2 - THE “WORKING MEMORY” APPROACH •...

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Unformatted text preview: THE “WORKING MEMORY” APPROACH • Baddeley & Hitch (1974) – Use articulatory suppression to interfere with some tasks, not others B doesn’t precede A B A – Develop “Working Memory” model: • Desk-top metaphor for STM • Process & storage tradeoff – (e.g., Posner & Rossman 1965) • Multicomponent structure COMPONENTS OF WORKING MEMORY (Baddeley, 1990) Central executive (attentional control) Phonological store Visual-spatial sketchpad (Random letter generation) (Repetitive articulation) (Repetitive keying) Concurrent Articulation and the Phonological Store (Peterson & Johnson, 1971) No Concurrent Task 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Dissimilar Similar Type of List Percent Correct Visual Auditory Concurrent Articulation 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Dissimilar Similar Type of List Percent Correct Visual Auditory WORKING MEMORY AND CHESS (Robbins, 1996) Primary task : recall of chess piece positions Secondary tasks: N None P articulate “the, the..” V execute 4x4 key pattern CE generate random letters Mean correct recall N P V CE •...
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HM_stm2 - THE “WORKING MEMORY” APPROACH •...

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