STM_2(2) - Short-Term Memory (STM) (Continued) Review:...

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1 Short-Term Memory (STM) (Continued…) Review: (quiz alert!) Retroactive vs. proactive interference Release from P.I. ( Is forgetting in STM due to decay or interference? The role of similarity in interference Chunking and STM capacity de Groot’s study of knowledge and STM (chess) Sensory store vs. STM - characteristics Short-Term Memory (STM) Clive Wearing: http://www.youtube.com/watch?v=YrI8ibsiiZ4 Information Processing Model: Storage boxes SENSORY STORE (sensory memory) SHORT TERM MEMORY LONG TERM MEMORY ENVIRON- MENTAL INPUT Visual, auditory, haptic Temporary working memory (includes control processes: Rehearsal Coding Decisions Retrieval strategies) RESPONSE OUTPUT
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2 Information Processing Model: Storage boxes SENSORY STORE (sensory memory) SHORT TERM MEMORY LONG TERM MEMORY INPUT Limited capacity Rapid loss of info Acoustic coding (typically) Large capacity Short duration decay interference on forgetting in STM (what was the confound?) Decay theory predicts an interaction ; Interference theory does not. Q: Why is material lost from STM? …because of time . Loss is much worse when intervening items are presented slowly, only slightly worse when they’re presented quickly. Presentation rate doesn’t matter: # of items does. Decay predicts: Interference predicts: So: Decay theory predicts an INTERACTION: Blue: Fast presentation Red: Slow presentation (The two lines are not parallel.)
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3 Interference theory predicts no interaction: And that was what found. (The two lines are parallel - same slope .) Onward to Memory Codes How is information represented (coded or stored) in STM? Does it differ from how info is coded in LTM?
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This note was uploaded on 03/28/2011 for the course PSY 260 taught by Professor Brennan during the Spring '11 term at SUNY Stony Brook.

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STM_2(2) - Short-Term Memory (STM) (Continued) Review:...

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