There wasanother developed model of representing short term memory called the workingmemory model. The researchers proposed a three parts model, where short termmemory is made of many subtopics which operate the functions. This is beingsupported by the study by Baddeley and Hitch in year 1974, which investigatedif participants can use different parts of working memory simultaneously. In thismodel there is the central executive, which is the most important part of themodel that controls the mechanism where information goes. Operated by Phonologicalloop and visuospatial sketchpad to long term memory. The phonological loop twoparts, receives the information from the long term memory in from of verbal andarticulatory system, which is basically about written and spoken material.
Thearticulatory control system, here written words are being converted into spokenwords so that they can go into the phonological store. Here the informationwill be circulated. Repetition of phone number as an example.
The Visuospatialsketchpad deals with visual information, it receives info from sensory memoryof long term memory, example like picturing objects in your mind. Lastly the episodicbuffer has been added, which acts as a backup of information, which works withlong term memory and working memory.Baddeleyand Hitch in year 1974, which investigated if participants can use differentparts of working memory simultaneously supports this model. The method was thatparticipants were asked to perform two tasks at the same time. One was toremember number sequences and the other was that they had to read a text and understandit. Results show that when the sequence of number increased the remembering washard. There was this evidence that short term memory has more than one singlestore.
Remembering many little things is easier than more and big once. Theconclusion central executive and phonological loop is used in those two tasks. Here in allin can be seen that, the remembering affects memory a lot, in relation to thatmodel.
When people have to remember and concentrate on more than two things,they have more pressure, and for sure when they have to do it at the same time.Especially when people have to remember impaired tasks.