Working Memory Model Flashcards
What is the working memory model?
Suggests that STM is a dynamic processor of different types of information using sub units, coordinated by a central decision making system
What are the main 4 categories?
Central executive
Visualslatial sketch pad
Episodic buffer
Phonological loop
Central executive
Limited capacity Info from senses Pass jobs onto slaves Reasoning and decision making Which issues deserve attention- metaphor for Brian
Phonological loop
Limited capacity
Deals with auditory info
-) phonological store- holds words heard
-) articulating process- inner voice
Visuospatial sketch pad
Inner eye
Visual- what things look like
Spatial- relationships between things
Limited capacity
Episodic buffer
Added later
Extra storage
Limited capacity of 4 chunks
Interstates info from all other places
Baddeley et al , evidence for phonological loop
Investigate existence of PL in STM
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Everyday words displayed quickly after another. Write words in order as seen
CON1) 5 one syllable English words
CON2) 5 polysyllabic English words
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Recalled shorter one syllable words better. Word length effect
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Amount you hold it for is determined by length of time it takes to say words
PL holds amount of info u can say for 2s
Baddeley et al - evidence for Visuo spatial sketch pad
Existence of Visuo spatial sketch pad in STM
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Visualise a letter and describe angles at each point at same time as completing Visual tracking task
Task1) angle on top of bottom of letter say yes
If anywhere else say no
Task2)track movement of a dot of light with a pointer
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Hard to do as dealing with VSS at same time
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Supports existence of separate stores as if no different components, wouldn’t struggle
Strength of WMM
More then one Slave system as participants found it hard doing two tasks simultaneously than doing visual and verbal task at same time
Evidence for brain damaged patients
-no problem with visual but struggled with verbal
Weakness of WMM
Evidence from brain damaged participant may not be reliable as based on one person
Central executive poorly explained