believed that the memory store is not just a unitary store, but instead multiple
The Working Memory Model ( WMM ) is made up of 4 stores:
Central Executive
Phonological loop
Visuo spatial Sketch Pad
Episodic Buffer
Central executive: a vague and untestable store that directs information to its necessary sub component: phonological store, visuospatialsketchpad, episodicbuffer.
Phonological Loop: responsible for processing auditory information
It consists of two subcomponents: the phonological store and the articulatory process.
Visuospatial sketchpad: processes visual information, including images and locations. It has two subcomponents: the innerscribe and the visualcache
EpisodicBuffer: An extra storage system baddeley added because he thought there wasn't enough
Episodic buffer: A temporary store that holds information from the STM and LTM, and stores any additional information the other stores can't