memory
- Created by: mozy
- Created on: 15-03-19 08:48
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- the nature of memory
- the sensory register
- coding -- sensory
- haptic- tactile
- iconic- visual
- gustatory- taste
- echoic -auditory
- olfactory-smell
- capacity-- unknown but very large
- duration --very limited aprox. 250ms
- coding -- sensory
- short term memory
- coding -- acoustic
- baddeley-word lists, acoustically similar and dissimilar,
- ppts had to recall words in correct order
- found 10% recall of similar words
- acoustic confusion, concludes LTM is coded acoustically
- baddeley-word lists, acoustically similar and dissimilar,
- capacity- 7-9 items
- jacobs- digit span test
- read a series of numbers and ppts had to repeat them in the right order
- found on average that someone could remember an average of 7+/-2
- concluded LTM had limited capacity
- found on average that someone could remember an average of 7+/-2
- read a series of numbers and ppts had to repeat them in the right order
- miller-chuncking
- supports research of Jacobs
- found that LTM capacity could be increased by chuncking
- supports research of Jacobs
- jacobs- digit span test
- duration -18-30 seconds
- peterson and perterson-lab experiment using random trigrams made of constants
- count back in 3s from a 3-digit number to prevent rehearsal
- found- after 3 seconds recall was aprox. 80%, after 6 seconds decreased to 50% and after 18 seconds fell to 10%
- conclude that info in the LTM was lost quickly when there was no time to rehearse it
- found- after 3 seconds recall was aprox. 80%, after 6 seconds decreased to 50% and after 18 seconds fell to 10%
- count back in 3s from a 3-digit number to prevent rehearsal
- peterson and perterson-lab experiment using random trigrams made of constants
- coding -- acoustic
- long term memory
- coding -- sematic
- baddeley- word list - semantically similar and dissimilar
- capacity -- unlimited
- we often forget due to interferance or retrival failure
- duration-- unlimited
- bahrick - school photographs
- free recall from a list of names, a photo recognition and a name recognition
- found that after 15yrs recognition of names and faces fell to 90%the to 80% after 48yrs
- concluded that recognition was better than recall
- free recall of names was a 60% at 15yrs and 30% at 48yrs
- found that after 15yrs recognition of names and faces fell to 90%the to 80% after 48yrs
- free recall from a list of names, a photo recognition and a name recognition
- bahrick - school photographs
- coding -- sematic
- the sensory register
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