Working memory model -Baddeley & Hitch

What did Baddeley and Hitch argue?

STM active multi-component store (WMM) rather than a passive single store as MSM predicted.

How many main subsystems are in the WMM?

Four

What does the WMM say it's easier to do?

It is easier to do 2 tasks simultaneously that use diff subsystems than 2 tasks that use the same subsystem

What does the central executive do?

Processes incoming information + allocates it to other subsystems

• very limited capacity

• does NOT store information

What does the phonological loop do? 👂👄

Deals with auditory info and codes acoustically

• has 2 components

• phonological store: stores words u hear

  Articulatory control system: uses maintenance rehearsal to hold the info

• limited capacity of about 2 seconds of speech

What does the visuo-spatial sketchpad do?

Deals with visual + spatial info

• codes visually

• has 2 components

• visual cache: stores info ab visual form + colour

• inner scribe: processes spatial + movement info

• limited capacity of about 4 objects

What does the episodic buffer do?

Temporary store for CE of all info (visual, spatial, auditory)

• links working memory (STM) to LTM + other cognitive processes such as perception

• limited capacity of about 4 chunks