Weaknesses of Multi-Store Model
- Created by: Alice
- Created on: 21-01-14 18:35
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- Weaknesses of MSM
- Structures: STM and LTM are not unitary stores
- Evidence: STM not being unitary store from case study KF. Brain damaged resulted in difficulty dealing with verbal info in STM. But normal ability to process visual info.
- MSM describes LTM as single store. Where as evidence from patients with amnesia indicates that there are different kind of long term memory
- Schachter et al (2000) suggested there are 4 LTM stores
- 1. Semantic Memory
- 2. Episodic Memory
- 3. Procedural Memory
- 4. Perceptual representation
- Spiers et al (2001) studied memory in 147 patients with amnesia. Their procedural representation systems were intact but the other two systems were not
- Schachter et al (2000) suggested there are 4 LTM stores
- Process: Rehearsal vs processing
- Craik and Lockhart (1972) proposed a different kind of model to explain lasting memories.
- Suggested that enduring memories are created by the processing that you do, rather through maintenance rehearsal
- Craig and Tulving (1975) Gave participants a list of nouns and asked a question about each word. These being:
- 1. Shallow Processing e.g 'Is the word printed in capital letters?'
- Participants remembered most words from condition 3 and least from condition 1. Suggesting processing leads to enhanced memory. Replaces maintenance rehearsal with elaborative rehearsal
- 2. Phonemic Processing e.g 'Does the word rhyme with train?'
- Participants remembered most words from condition 3 and least from condition 1. Suggesting processing leads to enhanced memory. Replaces maintenance rehearsal with elaborative rehearsal
- 3. Semantic Processing eg 'Is the word a type of fruit.
- 1. Shallow Processing e.g 'Is the word printed in capital letters?'
- Glenberg et all (1977) showed that maintenance rehearsal does have some effect on creating enduring memories but not as much as elaborative rehearsal
- Craik and Lockhart (1972) proposed a different kind of model to explain lasting memories.
- How separate are STM and LTM
- MSM suggests that STM involved before LTM. Logie (1999) pointed out that STM actually relies on LTM, cannot come first as suggested in MSM
- Ruchkin et al (2003) demonstrated this by asking participants to recall a set of words and pseudo words. Brain activity was monitored and found two large differences
- More activity when real words were processed, indicates the involvements of other areas of the brain
- Concluded that STM is actually just the part of LTM which is activated at any given time
- Pseudo words involved short-term memory then activity should have been the same for both conditions.
- Concluded that STM is actually just the part of LTM which is activated at any given time
- More activity when real words were processed, indicates the involvements of other areas of the brain
- Ruchkin et al (2003) demonstrated this by asking participants to recall a set of words and pseudo words. Brain activity was monitored and found two large differences
- MSM STM was a place to hold information as it is being moved to LTM, whereas the concept of working memory is that it is an end in itself a place where information is held until it is put to use
- MSM suggests that STM involved before LTM. Logie (1999) pointed out that STM actually relies on LTM, cannot come first as suggested in MSM
- Structures: STM and LTM are not unitary stores
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