Multistore Model Of Memory Flashcards
Who was the MSM proposed by?
Atkinson and Shiffrin
What is the MSM?
A unitary model
How many stores does the MSM have?
3
sensory
Short term
Long term
How does info flow through the stores?
In a clear sequential way
How is info taken into the sensory store?
From the environment via senses
What series of registers does it consist of?
Iconic - pictures
Echoic - sounds
What is the capacity, duration and coding of the sensory store?
Cap - very large
Dur- 0.25 seconds
Cod - multi modal
What happens is information in the sensory store is given focus?
Moves into the short term memory but the majority is lost.
What is the capacity, coding and duration of the short term memory?
Cap - 7+- 2 bits of info
Cod - acoustic
Dur - 18-30 seconds max
How is info lost from the STM?
Decay or Displacement
What happens if rehearsal is undertaken?
Info is maintained and eventually encoded into the LTM
What does the LTM act as?
A storage system
What is the capacity, coding and duration of the long term memory?
Cap - unlimited
Cod - semantic
Dur -up to a life time
MSM Mixed
+ provides evidence for the characteristics of various memory stores. Can include Jacobs digit span which support cap of STM as 7+/- 2, Baddeleys word list investigating the coding format of the LTM&STM
BUT evidence is provided by lab experiments using artificial stimuli. May have little relevance in everyday life.
MSM mixed +evidence to support
+ squire et al has pps tasked with STM skill, found the pfc activated but with LTM it was hippocampus, suggest they are separate.
BUT can’t explain flashbulb mems (small details associated with vivid mems immediately stored in LTM) weakness as model states all mems need to be rehearsed.
