... Paying attention to information in SM allows for it to be passed over into short-term memory. Short-term memory (SM), sometimes referred to, as working memory, is the stage after SM. Information selected by attention from sensory memory, may pass into short-term memory (STM). This allows us to retain information long enough to use it, e.g. looking up a telephone number and remembering it long enough to dial it, this is also known as 'chunking'. STM lasts approximately between 15 and 30 seconds, unless people rehearse the material, and it has limited capacity of around 7±2 'chunks' of information. STM also appears to mostly encode memory acoustically (in terms of sound), but can also contain visuospatial (by vision or pictures), or semantic (by meaning) information. If information is rehearsed, it is then passed into long-term memory (or LTM). LTM provides the lasting retention of information and skills, from minutes to a ...

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