Working memory (Baddeley & Hitch, 1974) is a popular model which builds on an over-simplified explanation of short term memory (STM) given by the multi-store model of memory. Working memory suggests that the STM store consists of three subsystems, each of which have limited capacity and different roles in the processing of incoming information. This information passes through our sensory registers, for example, the visuospatial sketchpad deals with processing of visual and spatial information such as navigation. The second subsystem is the Phonological loop, concerned with processing articulatory information such as reading and listening. These are seen as slave systems to the central executive which controls the allocation of attentional resources in memory. The primary function of working memory is to temporarily store incoming information relevant to a task while discarding irrelevant information, and is used in almost every scenario imaginable whether it be recalling a customers' drinks order whilst calculating what change they're owed or remembering the directions you received from a passenger whilst driving along an unfamiliar route. Working memory performance changes as we age, improving as individuals mature from childhood to early adulthood, and then seemingly declining throughout adulthood, and decreasing significantly as we reach old age. An influential study to begin with is that of Case et al (1982) who aimed to identify the working memory abilities of young children aged 6 years to 12 years by using a counting span task. In this task children were presented with a series of displays containing a mix of targets and distracting items, once the final display was presented, children were asked to recall the number of targets in the previously presented slides and counting span was determined by the amount of displays recalled correctly, processing speed was also measured. Interestingly across all age groups, Case et al (1982) found a significant relationship between memory capacity and processing speed ass