... These two oft-used terms, along with the sensory memory, combine to make up the modal model. Several theorists such as Waugh & Newman (1965) have proposed a model in which we have these three separate systems, arranged in a hierarchy. Sensory stores feed into a phonetically coded short term memory via selective attention, and information then moves to a semantically coded long term memory. We will now look at each of these modules in turn and examine the ideas and evidence underlying each. The sensory memory is proposed to be the interface with the outside world. Information is received from each of our senses (a separate, modality specific store is suggested for each sense) and held in a buffer which very quickly decays and is updated. There is good evidence for the existence of the brief storage of a verbatim copy of sensory input in several sensory modalities. The two most ...

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