Multi Store Model (1968) Flashcards
Multi store model
Memory a flow of information through information processing system
System divided into a series of stages as information passes from one store to another in a fixed sequence
Each stage has constraints in terms of capacity duration and encoding
Encoding
Iconic storage
For visual information
Can see in sensory memory my closing eyes for a brief moment you will see an image after looking at it
Echoic storage
Auditory/ sound information
How it’s processed
Sensory is passed to short term by attention (taking notice)
Short term to long term by rehearsal
Miller (1956)
STM capacity
Short term can hold 7+/- 2 things of information
For a short amount of time
Peterson and Peterson (1959)
STM duration
Participants remember a single trigram
3 consonant intervals (3,6,9,12)
679,676,673
Struggled after 15-18 seconds
Baddeley 1966
STM
STM encoding
Encodes acoustically
Confused by acoustically similar words
Baddeley 1966
LTM
LTM encoding
Encodes semantically
Semantically similar words were muddled up
Brady (2005)
LTM capacity
Showed 2500 objects over 5.5 hours
Showed pairs of seen and unseen
Identification 92%
Similar 88%
Different angle 87%
Unlimited storage
Bahrick et al (1975)
LTM duration
Names and faces of high school classmates
400pps ages 17-74
Accuracy 80% within 15 years
78% 48 + years
Memory deteriorates but names and faces are resilient
Conclusion
Application
How best to memories things for STM and LTM
What needs to be revisited and how often to relearn things
Explains why people have different memories of things as they have to pay attention to the specific thing for it to be in their memory
Negatives
Reductionist
Simplifys explanations (non holistic approach)
Ignores other factors (WMM) can’t explain things like how KF lost STM but could still make new LTM memories
Based on lab experiments (lacks ecological validity) ( Peterson and Peterson trigrams is very unrealistic )
Describe multi store model
Information primarily enters the system through a
sensory experience and into the sensory register which is
modality specific (1). Information is then passed to short
term memory where it can be held for around 18-30
seconds before it decays (1). If this data is rehearsed to
maintain the information it can be transferred to long
term memory (1). Long-term memory is said to have a
potentially infinite capacity and duration (1).