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- 1THE MULTI STORE MODEL
- 2SENSORY MEMORYCAPACITY: limited
DURATION: 0.5-2 seconds
ENCODING: Acoustic, haptic, visual, tactile
FORGETTING: Mainly interference
RESEARCH: Sperling (1960) - 3SPERLING (1960)AIM: To investigate capacity of STM
PROCEDURE: Grid of letters exposed to P;s for 50 milliseconds. Asked to to recall the letters immediately
FINDINGS: Average recall was about 4-5 letters
CONCLUSION: participants could see 9-10 of a possible 12 items - 4.PROCEDURE #2: participants trained to distinguish between 2 tones and asked to recall top line of grid when high tone was played etc.
FINDINGS: P's did not know what row they would recall. Average recall:3 letters
CONCLUSION: SM's capacity is up to 9 items from 0.5-2 seconds - 5SHORT TERM MEMORYCAPACITY: Approximately 7±2 items
DURATION: limited ~ 18 seconds
ENCODING: mainly acoustic
FORGETTING: mainly displacement
RESEARCH: BADDELY (1966) - 6BADDELY (1966)AIM: To investigate the encoding of STM
PROCEDURE: P's shown sequence of 5 words: acoustically similar or dissimilar, or semantically similar or dissimilar. Recall was 2 seconds after.
FINDINGS: Acoustically similar words got confused more than others
CONCLUSION: STM converts visual material into acoustic code - 7LONG TERM MEMORYCAPACITY: UNLIMITED
DURATION: UNLIMITED
ENCODING: Mainly semantic
FORGETTING: decay or interference
RESEARCH: BAHRICK ET AL (1975) - 8BAHRICK et al (1975)Tested the LTM of 392 graduates of a high school buy testing their recognition of classmates or recalling names without pictures. P's performed well up to ~ the age of 30, but performance was better on recognition due to ageing effects on memory, so duration is unlimited but memory can be lost from decay
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- Flashcards on Untitled, created by j.walkerbrowning on 18/02/2015.
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- j.walkerbrowning · Feb 2015
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- Feb 19, 2016
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