Features of STM and LTM
Blue = AO1
Light blue = little bit extra AO1
Red = AO3
- Created by: ross.mcdonald15
- Created on: 13-02-17 13:02
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- Features of STM and LTM
- Key terms
- Memory
- Capacity
- Duration
- Coding
- Trace decay
- Chunking
- Semantically
- Acoustically
- Visual
- STM
- Capacity
- Jacobs: 9 items
- Digit span technique
- Untitled
- Individual differences: capacity increases with age
- 8 yr old: 6.6 items
- 19 yr old: 8.6 items
- Could be down to brain size
- Miller: 7 +/- 2 items
- Cowan: 4 items
- Chunking helps to remember more
- Simon: large chunks reduces memory span
- Jacobs: 9 items
- Duration
- holds info. for 15s-30s
- Peterson and Peterson
- Trigrams
- STM duration is limited
- Without rehearsal, info. is forgotten
- Trace decay
- Task didn't relate to everyday life
- Lowers ecological validity
- Tasks demonstrate displacement rather than trace decay
- Reitman: auditory tone, lead to longer STM duration
- Capacity
- LTM
- Duration
- Bahrick
- Yearbook photos
- 14 yrs after graduation: 90% accuracy
- 48+ years after graduation: 60% accuracy
- Bahrick
- Duration
- Coding
- Baddeley
- Ps struggled with acoustically similar words in STM not LTM
- Ps struggled with semantically similar words in LTM not STM
- STM is coded acoustically
- LTM is coded semantically
- Baddeley
- Key terms
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