The Multi-Store Model Flashcards
What is the MSM?
A structural model of memory that details a one-way flow of information through memory, consisting of three stores
What are the 3 stores of the MSM?
- The Sensory Register
- STM
- LTM
What is the Sensory Register?
The system through which stimuli from the environment first enter the memory system.
What is required to move information on through the Sensory Register?
Attention
How is the Sensory Register encoded?
Coding is specific to each of the 5 registers (eg. visual= iconic)
What is the duration of the Sensory Register?
Very brief (less than half a second)
What is the capacity of the Sensory Register?
Very high
How is information passed on from STM to LTM?
Via maintenance rehearsal
What is maintenance rehearsal?
The internal repetition of information to oneself on a loop to ensure that it’s transferred from STM to LTM
What is retrieval?
Recalling information from LTM, meaning it is transferred back into STM
How do each of the 3 stores of the MSM differ?
In terms of how they’re encoded, their capacity and their duration
How many registers does the Sensory Register consist of?
5- one for each of the senses
How is STM encoded?
Acoustically
How is LTM encoded?
Semantically
What is the duration of STM?
Between 15-30 seconds
What is the duration of LTM?
Up to a lifetime
What is the capacity of STM?
Around 7 items, + or - 2
What is the capacity of LTM?
Unlimited
Which studies support the idea that STM and LTM are separate stores, as according to the MSM?
- Baddeley’s study of Encoding
- Peterson & Peterson’s study of STM Duration
- Bahrick’s study of LTM Duration
How did the MSM kickstart neurological research regarding memory?
It was the first model, and so provided a testable basis for further research into memory
Why has the MSM been criticised for being oversimplified?
- It suggests both STM and LTM are unitary stores, when there is evidence that suggests they aren’t
- It suggests a one-way flow of information, when in actuality it is multidirectional
Which case studies suggest that STM and LTM aren’t unitary stores, contradicting the MSM?
- KF (STM)
- Clive Wearing & HM (LTM)
How can studies supporting the MSM be criticised?
For their use of artificial materials and situations, meaning they lack mundane realism and have low ecological validity, as they don’t reflect how we use memory in our day-to-day lives
Who developed the MSM of memory?
Atkinson & Shiffrin
Describe Sperling’s research into the Sensory Register
- A grid of letters were flashed on a screen for 50 milliseconds
- The participants had to write down as many letters that they could remember
- Whilst most could only recall 4 or 5, most insisted that they had seen all the letters
- This suggests the small duration yet larger capacity of the Sensory Register