Psychology AS - Memory

WMM - Working Memory Model

Central executive - has a small storage capacity for allocating memories to the right slave systems for processing

Phonological loop - the phonological store "inner ear" and articulatory process "inner voice"  remembers speech and sound and repeats any input to stop it form decaying

Visuo spatial sketchpad - the visual cache hold information about for, and colour and the inner scribe can create mental images in your "minds eye"

episodic buffer - temporary storage and helps memories move between the STM and LTM

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Evaluation of WMM

Phonological loop - Baddeley et al. (1975)  showed that people have more difficulty remembering long than short words presumably because the phonological loop only holds abotu 2 seconds worth of information.

Brain-damadged participants - Shalice and Warrington (1970) studied "KF" whose LTM was intact and in STM he could not remember verbal material suggesting only his phonological loop was affected

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Evaluation of WMM cont.

Strengths - The model makes predicitons that can be tested empirically and thus permits the model to be supported or refuted

it offers a further improvement of the MSM which suggested that memory was not only one store but many, the WMM distinguishes these stores

Weaknesses - some of the components are not satisfactorally explained for some components it is unclear how they could be tested e.g central executive

The WMM does not talk about the LTM 

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