Multi-store model Flashcards
This covers the studies, strengths and weakness of the multi-store model (you may want pen and paper)
1
Q
What are the three types of memory?
A
- Sensory Register
- Short term memory
- Long term memory
2
Q
What types of coding does each type of memory have?
A
- SR: Iconic and echoic coding
- STM: Acoustic coding
- LTM: Semantic coding
3
Q
What are the capacities of each type of memory?
A
- SR: Unlimited
- STM: Limited (7+-2)
- LTM: Unlimited
4
Q
What are the durations of each type of memory?
A
- SR: Limited to less than half a second
- STM: Limited to 18-30 seconds
- LTM: Unlimited
5
Q
What is the multi store model
A
(draw a diagram and look it up if unsure)
6
Q
What are the strengths of the Multi-Store Model?
A
- Encoding research support: Baddeley recall of acoustically similar words
- Capacity research support: STM being limited to 7 nums and 9 letters
- Case study of HM
7
Q
What are the limitations of the Multi-Store Model?
A
- Model was incomplete
- Based on artificial tasks
8
Q
What research supports encoding?
A
- Baddeley
recall was bad for acoustically similar words in STM:
Indicates coding in STM is acoustic - good recall for semantically different words.
Indicates coding in LTM is semantically
9
Q
What research supports for the capacity of STM being limited?
A
- Jacobs
saying a list of numbers or letters and increasing the length each time: - Found that capacity for numbers was 9.3
and for letters was 7.3
10
Q
What research supports for the duration on the STM?
A
- Peterson and Peterson
Read out a series of trigrams and participants were asked to count out loud backwards
After some time they were asked to write down the trigram
-After 3 seconds, recall was 80%
-After 18 seconds, recall was 3%
-duration of STM is about 18-30 seconds
11
Q
What research is there to support the duration of LTM?
A
- Bahrick
Tested photo recognition of their yearbook classmates and names. - 15 years after graduation were 90% accurate on photos and 60% on recall.
- 48 years after graduation were 70% accurate on photos and 30% accurate on recall.
- LTM is unlimited.
12
Q
What case study supports the Multi-Store Model?
A
- HM
- couldn’t make new LTMs
- This suggests there are separate stores for STM and LTM
