Dual-coding theory: Difference between revisions

Revision as of 05:10, 20 January 2007

Revision as of 05:29, 20 January 2007

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Research with PET scans and fMRI, for example, has shown that participants used the same brain areas to process imagined visuals as images that were actually seen. Participants also had improved memory for spoken words and sentences when paired with an image, imagined or real, and showed increased brain activation to process abstract words not easily paired with an image.

Paivio found that participants who werewhen shown a rapid sequence of pictures as well as a rapid sequence of words, whenand later asked to recall the words and pictures, (either in order of appearance, or in any order they wanted), were better at recalling images when allowed to do so in any order. Participants, however, more readily recalled the sequential order of the words, rather than the sequence of pictures. These results supported Paivio's hypothesis that verbal information is processed differently than imaginal, or visual, information and that verbal information was superior to visual information when sequential order was also required for the memory task (Paivio, 1969).

Working memory as proposed by [[Alan Baddeley]] includes a two-part processing system with a visuospatial sketchpad and a phonological loop which essentially maps to Paivio’s theory.