Multi-Store Model
- Created by: BookWormGirl2001
- Created on: 01-05-19 18:31
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- Multi-Store Model
- Main Information
- Atkinson and Shiffrin 1968
- 3 main components
- Sensory Store
- Long Term Memory
- Short-Term Memory
- Sensory Store
- Not under cognitive control
- Information is raw and unprocessed
- Coding is unchanged
- Information from the senses
- Duration
- Information held in milliseconds max of 4 seconds
- If information focused on then its transferred to STM
- Information held in milliseconds max of 4 seconds
- Capacity
- Very limited
- Short-Term Memory
- Capacity
- 7 +/- 2 items
- Duration
- Less than 30 seconds
- Coding
- Acoustic
- Limited capacity and duration
- Information must be rehearsed
- If not rehearsed?
- Information will decay
- Forgotten
- Information will be displaced
- Replaced by new infomation
- Information will decay
- Known as maintenance rehearsal
- If not rehearsed?
- Capacity
- Long-Term Memory
- Coding
- Semantic
- Duration
- Unlimited
- Capacity
- Unlimited
- Coding
- Evaluation
- Strengths
- PET and fMRI show PFC relates to STM
- Hippocampus related to LTM
- Supports different stores
- Amnesia patients have been found to have lost STM or LTM not both
- Supports different stores
- PET and fMRI show PFC relates to STM
- Limitations
- Over simplifies memory
- E.g Shallice et al with the case of KF
- Brain damaged patient showed difficulty with verbal STM but not visual
- Suggests STM is not a single store
- E.g Shallice et al with the case of KF
- Flashbulb memories (Brown and Kulik 1977)
- Usually for traumatic events, insignificant details imprinted onto LTM without the need for rehearsal
- This type of memory not accounted for in MSM
- Usually for traumatic events, insignificant details imprinted onto LTM without the need for rehearsal
- Over simplifies memory
- Strengths
- Types of LTM
- Declarative(explicit)
- Episodic
- Over time these move into semantic memories
- PFC linked to coding episodic memories
- Hippocampus and temporal load associated with episodic memory
- Semantic
- Strength of semantic memories is positively correlated with the strength of processing that occurs in coding
- Other areas of temporal lobe associated with semantic memory
- Episodic
- Non-Declarative (implicit)
- Procedural
- Doesn't often require conscious thought
- Cerebellum and motor cortex associated with procedural memory
- Procedural
- Declarative(explicit)
- Main Information
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