MEMORY: multi store model Flashcards
(26 cards)
Who proposed the Multi-Store Model and when?
Atkinson & Shiffrin (1968)
What are the three stores in the MSM?
Sensory Memory, Short-Term Memory (STM), Long-Term Memory (LTM)
How is information transferred from STM to LTM?
Through rehearsal
What causes forgetting in MSM?
Decay or displacement in STM, and retrieval failure in LTM
What type of information does sensory memory store?
Information relative to different senses (e.g., iconic for visual, echoic for sound)
Duration of sensory memory?
Less than a second
How is STM mainly coded?
Acoustically
Capacity of STM?
7 ± 2 items
(Miller, 1956)
Duration of STM?
18–30 seconds
(Baddeley, 1966)
How is information lost in STM?
Through displacement or interference
How is information mainly coded in LTM?
Semantically
Duration of LTM?
Potentially a lifetime
(Bahrick – VLTM)
What is the Serial Position Curve?
Pattern of recall where people remember the first and last items best
(Glanzer & Cunitz, 1966)
What is the Primacy Effect?
Better recall of early list items due to rehearsal into LTM
What is the Recency Effect?
Better recall of last items held in STM
What is the Asymptote?
Middle items recalled poorly due to displacement from STM
What evidence supports two separate memory stores?
Serial position effect and independent manipulation of primacy and recency
How does presentation speed affect recall?
Slower speed improves Primacy but not Recency
What happens to Recency with interference?
It disappears, supporting that Recency is from STM
Who was HM and what did his case show?
Had normal STM but impaired LTM; shows separate stores
(Scoville & Milner, 1996)
Who was KF and what did his case show?
Had impaired STM but intact LTM; shows stores are separate
(Shallice & Warrington, 1970)
What is one key criticism of the MSM?
It’s too simplistic and doesn’t account for strategies like mnemonics
What is the Levels of Processing theory?
Craik & Lockhart proposed memory is better with deeper, elaborate processing
What evidence supports LTM feeding into STM?
Chunking requires access to LTM, suggesting bidirectional flow