lec5memoryweb - Section 2: Memory Processes Notes Midterm...

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Notes Midterm exam Half short answer ; half objective questions Names are important Figures in text are important Will ask about design and results , as well as theory Might find glossary at the end useful for new terminology Should use Courseweb Discussion Board over the next week for questions Section 2: Memory Processes Remembering New Information Medin, et al: Chapter 5 & 6 Memory Systems Midterm Exam ... users cannot remember their passwords and need external memories (eg sticky notes ... Paper given at the 5 th Plenary CaberNet Workshop, Madeira, 5-7 Nov 2003 Processes of Memory Encoding How is information represented, e.g, visually, verbally, semantically, etc. Storage What is the capacity of memory? Retrieval Short-term memory Capacity or memory span Long-term memory Retrieval as a function of encoding Atkinson-Shiffrin model, circa 1968 Posits a SR, STM, and LTM as separate stores Focus on stores, not processes Modern view focuses on processes Models of Memory Sensory Registers STM LTM Start with Working Memory AKA Primary Memory Active Memory Short-term Store (STS) Short-term Memory (STM)
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Working Memory What do we know about the size, capacity, use of Working Memory/Short-term Memory? Critical for user-interface design -- often trying to overcome limits How and when do you use external memories ? Why is 7 +/- 2 wrong? Look at verbal (phonological) and visual memories Size of STM Describe by chunking Bower studied by having subjects hear: TVF BIJF KY MCA Results in recall of only about 5 of the 12 letters Size of STM Describe by chunking Bower studied by having subjects hear: TVF BIJF KY MCA Results in recall of only about 5 of the 12 letters As an alternative, present: Results in recall of all 12 letters G. Miller claims we recall 7+/-2 chunks of information Size of STM Describe by chunking Bower studied by having subjects hear: TVF BIJF KY MCA Results in recall of only about 5 of the 12 letters As an alternative, present: Results in recall of all 12 letters G. Miller claims we recall 7+/-2 chunks of information chunks of information ? chunks of information Size of STM == Memory Span Memory span experiment 3 5 7 3 5 7 4 1 2 4 4 1 2 4 8 4 3 5 6 8 0 3 8 4 3 . . 8 0 3 7 4 2 3 4 2 8 7 4 2 3 4 2 8 Something we can measure! Studied memory span for different kinds of material. Procedure Study list for 5 seconds Blank for 2 seconds Tone indicates time to recall
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Consonants, numbers, nouns, nonsense words, ..
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lec5memoryweb - Section 2: Memory Processes Notes Midterm...

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