13Memory1&2

13Memory1&2 - October 2 & 7, 2008 - Psychology 1101 F...

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October 2 & 7, 2008 - Psychology 1101 F Outline – Memory 1 ****This lecture covers Gleitman Chapter 7*** Memory o Is related to learning that has persisted over time o Has multiple forms or types o Different approaches and varieties of memory o In the realm of cognitive psychology Three major memory processes o Acquisition (encoding) o Storage o Retrieval Acquisition (encoding) o Memorizing, learning o Getting the information in somehow Stage theory of memory o Stimuli from environment o Sensory memory Unattended information (goes away) o Attended information o Working memory Rehearsal Forgetting o Encoding
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Long term memory o Retrieval Sensory memory o Briefly retains information about a sensory experience o Duration is brief, from a few hundred milliseconds to maybe a few seconds o Capacity: unlimited? o Likely a result of ongoing neural activity associated with the bottom-up stimulus Iconic memory o Sperling (1960) o Visual o Flash letters o Ask for recall o Partial report Cued recall of specific row with tones o Lasts for about 250 msecs Echoic memory o Auditory equivalent of iconic memory Working memory o Attention is the mechanism by which info gets from sensory memory into WM o Preciously called short-term memory o Holds information you're using right now o Active mental workspace o Capacity is limited Miller said the magical number 7 +/- 2 items o Duration: varies, usually estimated to be around 30 seconds without rehearsal o Rehearsal: actively maintaining information in WM in an effort to encode the information into LTM Long term memory o Storage area for information not actively being used o Capacity: probably unlimited Student have 80k work vocabulary Remember facts, autobiographical info, etc o Duration Probably forever (with some qualifications) 2 Dissociations o Why do we think there are separate memory systems for WM and LTM? o If there are distinct systems, there should be dissociation -- instances distinct processes are at work Serial position curve
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Primacy effect o Words at beginning of list - more people o Goes away if list is presented fast Recency effect o Words at the end that are recently resented o Goes away if asked to wait several minuets after list is called
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This note was uploaded on 11/08/2010 for the course PSYC 1101 taught by Professor Leader during the Spring '07 term at Georgia Tech.

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13Memory1&2 - October 2 & 7, 2008 - Psychology 1101 F...

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