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Memory (Working Memory Model (Central Executive, co-ordinates slave…
Memory
Working Memory Model
Central Executive, co-ordinates slave systems and allocates resources, very limited capacity
Phonological Loop, auditory information, phonological store and auditory process
Visuo-spatial Sketchpad, visual cache, inner scribe
Episodic Buffer, integrates processing of slave systems and records the order of events, linked to LTM
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Difficult to do two visual tasks at the same time, one visual and one verbal is okay (Baddeley et al)
CE not yet full explained, probably has different components
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Coding, Capacity and Duration
Coding
Baddeley, acoustic STM, semantic in LTM
Word list has no personal significance, meaningless stimulus
Capacity
Digit Span - Jacobs: 9.3 digits, 7.3 letters
Span of memory - Miller: 7+/-2 span, pitting items together extends STM capacity
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Duration
STM - Peterson and Peterson, up to 18 seconds without rehearsal
LTM - Bahrick et al: recognition of faces 90% after 15 years, recall 60%. Recog. dropped to 70% after 48 years
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Meaningful real-life memories, showed greater recall that LTM studies with meaningless material (Shephard)
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