Working Memory Model Flashcards
1
Q
Who proposed the WMM?
A
Baddeley and Hitch 1974
2
Q
Baddeley and Hitch
A
- believed STM a number of stores
- 2 visual tasks = poorer performance but 1 visual or 1 verbal means no interruption
3
Q
Central executive
A
- limited capacity
- info from VS, PL, and LTM
- sorts and determines how resources are allocated
- involves reasoning and decision making
- modality free coding
4
Q
phonological loop
A
- limited capacity, 2 seconds worth
- auditory info, preserves word-order - inner ear
- acoustic coding
5
Q
Baddeley 1986
A
- further divided phonological loop into:
- phonological store: holds words heard
- articulatory control system:holds words seen and silently repeats them
6
Q
visuo-spatial sketchpad
A
- visual/spatial info stored here (inner eye)
- limited capacity 3-4 objects
- Logie suggested sub-division: - visuo-cache (store), inner scribe for spatial relations
- visual coding
7
Q
episodic buffer
A
- added by baddeley in 2000
-extra storage system but with limited capacity of 4 chunks - integrates information from all other areas
- links LTM to wider cognitive processes
- modality free coding
8
Q
Baddeley and Hitch 1976 procedure
A
- gave ppts 2 tasks to do simultaneously
- task 1, tested verbal reasoning, occupied central executive
- did this while performing a task involving articulatory loop or AL and CE
9
Q
B&H Results
A
- task slower when done with task involving CE and AL
- concluded completing 2 tasks involving same component causes difficulty
10
Q
Strengths of WMM
A
Research support - B&H
- dual performance effect supports different components
Case Study Support - KF could recall visual but not auditory info
- supports visual processed in VS and auditory in PL
11
Q
Limitations of WMM
A
Case evidence can’t be generalised -KF brain damage
- not representative of typical behaviour
Limited explanation of CE
- EVR could do reasoning tests but not make decisions - both claimed to be performed by CE
12
Q
WMM diagram
A
central executive
VS sketchpad, Episodic buffer ,PL
LTM
