| working memory model | proposed by Baddeley and Hitch (1974), proposes a multi component model of short-term memory. consisting of
- central executive
- phonological loop
- visuo spatial sketchpad
- episodic buffer |
| central executive | - attentional system
- proccesses all sensory information and directs information to appropriate component
- has limited unknown capacity
- little is known about the CE |
| phonological loop | deals with auditory information and consists of the phonological store and articulatory process
- phonological store, stores the words you hear
- articulatory process allows for maintenance rehearsal |
| visual spatial sketchpad | stores visual and spatial information
helps people to navigate around and interact with their physical environment.
- visual cache, stores visual data
- inner scribe - records arrangement of objects
- Baddeley says it has a limited capacity |
| episodic buffer | - temporary store for information, intergrating visual, spatial and verbal information processed by other stores and maintaining a sense of time sequencing. the episodic buffer links WM to LTM |
| SUPPORT for WMM | - case study support from KF
- KF had poor STM for auditory information but could process visual information normally
- by the WMM, this suggests KF's phonological loop was damaged but his visuo-spatial sketchpad was intact. SUPPORTS existence of separate visual and acoustic memory stores. |
| LIMITATION of WMM | - lack of clarity over nature of central executive. not a lot of research done on it
- so it is considered an unsatisfactory component and this challenges the integrity of WMM |
