Working Memory Model - Phonological Loop? Watch

oscaranderson
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I'm doing AQA Psychology at the moment and I can't get my head around the phonological loop component of WMM.

Okay, I get that Baddeley and Hitch believed STM had to consist of more than one component. They explained that Working Memory is the part that is used when you need to do a task that involves holding info. as you go along (e.g. a sum; 1 + 2 + 3 + 4, you work out 1+2 = 3 and hold that in your WM while you work out 3+4, then bring them together to add them), and it must consist of verbal and visual parts since we can't dual task with two visual tasks or two verbal tasks, but can do one visual and one verbal at the same time.. blah blah, got that.
BUT, the issue I have regards the idea that there are two sub-stores within the Phonological loop - the component used for verbal info.
So the book says 'theres a phono. store that holds words we hear and an articulatory process that repeats words seen and heard - a form of maintenance rehearsal'
Okay, so the thing I can't grasp is - what's the difference? Is it the type of information stored or what? Why do we repeat/rehearse the words in the artic. loop/process?? With the example of the sum, what is the difference? Couldnt the '1+2' be kept in either the phono. store or the articulatory loop?
I just am completely lost with the whole concept, why does one bit store info. by repeating them while one bit just stores them?
PLEASE HELP!!
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tígertíger
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The way I see it is that the articulatory process is your inner voice, the one you hear in your head when trying to remember a set of numbers or when you're mentally working out 3+4. Once it's been repeated enough times (e.g. you've remembered that set of numbers for now), that information will get transferred to the phonological store. Some information will need to be repeated before we remember it, thus the need for an articulatory loop. Other incoming data, such as numbers that are being read aloud to us, will go straight to the phonological store which is like an inner ear. Thinking of it like that raises a lot of questions and doesn't make too much sense, but the theory suggests there's a difference between the two because working memory struggles to cope with two different types of processes that utilise the same store - for example, it's difficult to read (articulatory) and listen (phonological) to someone at the same time.

I hope that helps to explain it?
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