MEMORY PSYCHOLOGY

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INTRO
Forgetting generally refers to a persons loss of ability to recall or recognise a thing that they have previosuly learned.
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1)TRACE DECAY THEORY
TDT suggests a way to think of memory is as memory trace (physical form of info in the brain). suggests this trace dissapears or decays from STM if not rehersed. PETERSON AND PETERSON b-p technique, no rehersal, loss of memory (18 seconds).
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2)DISPLACEMENT
D in STM argues new info phsyically overwrites old info. This is result of limited capacity of STM. when it is full more info is displaced.
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DECAY VS DISPLACEMENT
PETERSON AND PETERSON (decay in mem in 18s if no rehersal) however may have been displaced by number counting down not decayed.REITMAN overcome D by retention task. p's listen to tone to stop rehersal (15s recall dropped by 24%) evidence of decay.
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DISPLACEMENT VS DECAY 2 (added)
WAUGH AND NORMAN 'serial prob technique' decay or displacement? P's given series of numbers,given probe (number) asked to recall probe and number after.(16 n in series)if probe was early recall low(20%>)if end recall high(80%
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DECAY AND DISPLACEMENT
SHALLICE forgetting reduced if n presented faster and stronger effect for position of probe. suggests dis and dec exaplin forgetting in STM but dis>dec
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1)DECAY LTM (decay theory)
Decay theory, (forget because memory trace dissapears). people with brain damage experience forgetting, in this case loss of memory trace is result of forgetting
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SUPPORT
LASHLEY trained rats to learn maze then remove sections of brain. found relatrionship betwee amount of material removed and amount of forgetting. suggests frogetting in LTM due to phsycial decay.
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2)INTERFERENCE THEORY
two types of interference, proactive interference (past learning interferes with current attempt to learn) and retroactive interference ( current attempt ot learn interferes with past learning).
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3) CUE DEPENDENT FORGETTING
forgetting in LTM is mainly due to retrevial failure (the failure to find info due to lack of cues). Two main types of cue. External cue (involve context dependnet learning) and Internal Cue (state dependent learning)
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EXTERNAL CUES
ABEMETHY tested student every week after starting a certain course, some tested in same room with normal/unusual instructor, other in different room with same/unusual instructor. Sme room, same instructor was the best. (familiar things acted as cues)
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INTERNAL QUEUES
invoves state dependent learning (or forgetting) such as mood dependent memories. GOODWIN ET AL people who drink a lot often forget where they placed items when they are sober,yet remember when they are drunk again.
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Card 2

Front

TDT suggests a way to think of memory is as memory trace (physical form of info in the brain). suggests this trace dissapears or decays from STM if not rehersed. PETERSON AND PETERSON b-p technique, no rehersal, loss of memory (18 seconds).

Back

1)TRACE DECAY THEORY

Card 3

Front

D in STM argues new info phsyically overwrites old info. This is result of limited capacity of STM. when it is full more info is displaced.

Back

Preview of the back of card 3

Card 4

Front

PETERSON AND PETERSON (decay in mem in 18s if no rehersal) however may have been displaced by number counting down not decayed.REITMAN overcome D by retention task. p's listen to tone to stop rehersal (15s recall dropped by 24%) evidence of decay.

Back

Preview of the back of card 4

Card 5

Front

WAUGH AND NORMAN 'serial prob technique' decay or displacement? P's given series of numbers,given probe (number) asked to recall probe and number after.(16 n in series)if probe was early recall low(20%>)if end recall high(80%

Back

Preview of the back of card 5
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