First 408 words of the document:
Evaluation of the working memory model
Buddeley and Hitch
Participants were told to follow a particular point of light with a pointer as
it moved in a pattern. At the same time they had to imagine a capital letter
and say if the corners of the letter contained the top or bottom edges.
Participants found this very hard and this is because both tasks completed
for the limited resources of the Visuo-spatial sketchpad. This supports the
model because you can't do two opposite tasks at the same time.
Patient KF had a motorbike accident and suffered some brain damage.
Afterwards he could still make long term memories, but he only had a STM
auditory capacity of 2 chunks, his visual STM was fine.
This supports the model because only one of the slave systems was damaged,
proving that there are 2 parts of STM.
Further evaluation points
The model explains STM in more detail than the multistore model. It
suggests that STM is more than just a temporary store; it is involved in
active processing as well. This supports the working memory model.
It is supported by evidence from various sources, experiments, brain
damaged patients and PET scans.
The model has lots of implications, as there is a high correlation between
working memory span and performance on various tasks; for example, a
poorly functioning phonological loop is associated with dyslexia. This
supports the working memory model.
The exact role of the central executive remains unclear, and is not as well
supported by evidence as the two slave systems, some researchers have
suggested that there may be two working memories (a visual and a auditory
one) rather than one working memory. This undermines the working memory
Working memory does not mention LTM and yet some of the tasks it does
clearly uses some information from LTM. The connection between the two
memories is unclear, until the episodic buffer was added in 2000. This
shows some support for the working memory model but also undermines it a
Berz has also criticized the model for failing to account for musical
memory. We can listen to instrumental music without impairing performance
on other acoustic tasks, and this counter to the predictions made by