Mod 3 working memory model slides

mod 3

1. Memory Specification : The working memory model: central executive, phonological loop, visuo -spatial sketchpad and episodic buffer. Features of the model: coding and capacity.

2. Memory: working memory model (WMM) Baddeley & Hitch (1974 ) Thought the multi-store model was right but STM was more complex. They did not think STM was: A single temporary store. A simple store for transferring information to LTM .

3. Memory: working memory model (WMM) They argued that STM was an ‘active store’ that stored different types of information while they were being worked on. STM can be thought of as consciousness: it holds information that is consciously thought about now. To replace the STM store of the MSM they proposed a multi-component working memory.

4. Working memory model: WMM WMM sees short-term memory as an active store holding several different types of information at the same time . Central executive : the part of WMM that oversees and co-ordinates the other components of working memory.

5. Central executive: coding & capacity The central executive has limited capacity. The central executive can store any type of information. It is modality free.

6. Phonological loop: coding & capacity Phonological loop : the part of WMM that deals with auditory information. The phonological loop stores information in an acoustic code. It has limited capacity.

7. Visuo -spatial sketchpad: coding & capacity Visuo -spatial sketchpad : the part of WMM that deals with visual information and spatial information. It has limited capacity.

8. Working memory model: WMM Baddeley & Hitch added one more component to the WMM in 2000. They called this the episodic buffer. This is the part of the WMM that acts as a temporary store of integrated information from the central executive, phonological loop, visuo -spatial sketchpad and LTM.

9. Episodic buffer: coding & capacity The episodic buffer can store any type of information: acoustic, visual, spatial. It has a limited capacity.

10. Working memory model: WMM Complete the working memory model description worksheet.

11. Evaluation: strengths Dual task performance studies. Baddeley (1975)

12. Evaluation: strengths Case studies of brain damaged people. K.F. Shallice & Warrington (1970)

13. Evaluation: limitations The central executive. Very little is known about it. We don’t really know how much information it can store. We don’t know exactly how it works.