Evaluate two models of one cognitive process

1042 WordsMar 1, 20145 Pages
Cecilia Nguyen Evaluate two models of one cognitive process This essay will be discussing one particular cognitive process: the memory by evaluating two models, which are the Multi store model introduced by Atkinson and Shiffrin in 1968 and the Working memory model by Baddeley and Hitch in 1974. The first model is the multi store model. It was first proposed by Atkinson and Shiffrin in 1968 and is a typical example of the information-processing approach. According to this model, memory consists of three types of memory stores: sensory stores, short-term store and long term store. Sensory stores consist of the eyes, nose, fingers, tongue, etc and the corresponding area of the brain. The sensory stores…show more content…
The visuo-spatial sketchpad when planned a spatial task and it saves memory temporarily. The episodic buffer is the general store, it integrates info from the central executive, the phonological loop and the visuo-spatial sketchpad and forms long term store. Research evidence for the working model of memory varies. Case studies of brain damaged patients support this model a lot. The case study of KF - a brain damaged patient with no problem with long term learning but some aspects of his immediate memory were impaired. This has proven that the working model of memory was right when suggesting that short term store works independently of long term store. In addition to evidence supporting this model, Baddeley and Hitch did a research on making participants do two tasks using the same or different components. Task one occupied the central executive, task two either involved the articulatory loop or both the central executive and the articulatory loop. Speed on task one was the same whether using the articulatory loop or no extra task. This shows that doing two tasks that involve the same component causes difficulty. It also suggested that when two different components are used, performance is not affected. Even though the working model of memory is better than the multi store model, it still has some weaknesses. For example the role of the central executive is vague and it needs more research. Also there were problems with
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