HM_stm1 - HM, others show STM LTM failure But PV, others...

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SHORT TERM (WORKING) MEMORY The phenomenology of STM Information-Processing models Broadbent’s “p-system ” (1958) Waugh & Norman’s primary memory (1965) (borrowing James’ term) Atkinson & Shiffrin’s multistore model (1968)
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MEMORY STRUCTURES AND PROCESSES IN THE “MODAL MODEL” SENSORY REGISTERS sensory inputs SHORT-TERM STORE (STS) temporary, working memory LONG-TERM STORE (LTS) permanent memory store visual auditory control processes: - rehearsal - coding - decisions - retrieval strategies tactile
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Characteristics of the short-term store: the classic period Brief duration Limited capacity (Miller, 1956) Dominance of speech-like codes (Conrad, 1964; Baddeley 1966) Serial “retrieval” process (Sternberg 1966) STM Rehearsal consolidates LTM Forgetting through decay Or displacement (Waugh & Norman 1965)
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SUPPORT AND PROBLEMS FOR THE CLASSIC VIEW Dissociations in amnesia
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Unformatted text preview: HM, others show STM LTM failure But PV, others learn despite poor STM Recency effects in free recall Distraction after last word eliminates it (Glanzer & Cunitz, 1965) But distraction after every word doesnt (Bjork & Whitten, 1974) Primacy effects in free recall Strong correlation between rehearsal and recall (Fischler & Rundus, 1970) But this can be decoupled by maintenance rehearsal (Craik & Watkins, 1975) STM capacity and speech Impact of speech on capacity, errors (e.g., Baddeley, 1966) But visual, semantic codes may also play a role in STM tasks (e.g., Baddeley & Hitch, 1974) Brain activity and the STM-LTM distinction Talmi, et al. (2005) 12-word lists shown visually Test for recognition early vs. late in seq BOLD response (fMRI) contrasted Early vs Late: Early vs Control: So: LTM retrieval activates MTL; STM retrieval does not...
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HM_stm1 - HM, others show STM LTM failure But PV, others...

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