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Slide 1

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Working Memory Model
PSYA1 ­ Cognitive Psychology…read more

Slide 2

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The Model Central Executive
-Monitors and controls slave
-Limited capacity
-Can multitask - flexible
Phonological Loop Episodic Buffer Visuo ­ Spatial Sketchpad
- Maintenance rehearsal about acoustic -Temporary storage - Stores visual and spatial information,
information -Limited capacity maintained by rehearsal
Phonological Articulatory Visual Cache Inner Scribe
Store Control System - Information - Information
- Holds words - Sub-vocally about form about spatial
you hear ­ inner rehearses vocal and colours and movement
ear input to prevent
decay ­ inner
voice…read more

Slide 3

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Evidence for the Central Executive
· Bunge et al. (2000)
· fMRI scans: P's were asked to read a sentence and then were asked
to recall the last word
· More attentional demands is reflected in the brain activity.…read more

Slide 4

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Evidence for the Phonological Loop
· Word length effect
· Shorter words are better remembered better than longer words
· When P's were given an articulatory suppression task, the word length effect
· The case of KF
· Shallice and Warrington (1970)
· KF has no problems with LTM thus proving that the STM and LTM works
independently. KF's brain damage seems to be restricted to the phonological
· The case of SC
· Trojano and Grossi (1995)
· SC had good learning ability apart from words which were presented out loud
thus his damage seemed to be to his phonological loop…read more

Slide 5

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Evidence for the Visuo-Spatial Sketchpad
· Baddeley and Hitch (1976)
· P's were asked to track a light and mentally trace the letter `F' and
say when they're at the top or bottom
· When tasks were done separately, their performance was impaired
and vice versa.
· When a verbal task (saying `yes') and a visual task was performed,
their performance was not affected. However, when two visual tasks
were performed, their performances were affected due to
competition for resources.
· This provided strong evidence for separate components of the WMM
· The case of LH…read more

Slide 6

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Evidence for the Episodic Buffer
· Baddeley et al. (1987)
· P's were given words and were asked to recall them immediately
· P's were better with related words
· This supports that there is a immediate memory store (neither visual
or phonological) and so is drawn from the LTM…read more

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