DUAL CODING THEORY   and VISUALIZATION LJ
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    FNF: DUAL CODING THEORY   http://www.hi.is/~joner/eaps/wh_dualc.htm       2001-03-27  JE VS: 527.4666

"According to Paivio (1991), (NL) DCT evolved from his studies on the role of imagery in associative learning. These studies marked the first systematic objective measurement of the effects of imagery on memory. Before reviewing these effects, a brief description of the assumptions and components of this theory is needed.

Dual Coding Theory proposes that memory consists of two separate but interrelated codes for processing information—one verbal and the other visual. The verbal and visual systems can be activated independently, but there are interconnections between the two systems that allow dual coding of information. The interconnectedness of the two systems permits cueing from one system to the other, which in turn facilitates the interpretation of our environment (Rieber, 1994; Simpson, 1995).

Each system has different functions, storage processing characteristics and memory units (Rieber, 1994). The verbal system specializes in processing and storing linguistic information (words, sentences, etc.,). Information is stored in discrete, sequential units that are called logogens. In contrast, the visual system specializes in processing and storing image or ‘picture-like’ representations. Processing in the visual system is believed to be more holistic and based on continuous organizational units termed imagens. Chan Lin (1994) illustrates this
point through the example of a face which, if processed visually, is perceived concurrently as a whole made up of distinctive sub-elements (eyes, nose, mouth), often to an astonishing level of detail. A verbal representation, on the other hand, requires a sequential description of each individual element. Thus, in this type of representation, the level of detail is directly proportional to the length of the description.
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See the full original at:   http://chd.gse.gmu.edu/immersion/knowledgebase/strategies/cognitivism/DualCodingTheory.htm
http://chd.gse.gmu.edu/immersion/knowledgebase/

See also

DUAL CODING THEORY

http://chd.gse.gmu.edu/immersion/knowledgebase/strategies/cognitivism/DualCodingTheory.htm

 
DUAL CODING THEORY
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PICTORIAL SUPERIORITY
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Why Pictures are Cognitively ‘Better’
http://cogsci.ucsd.edu/~shorodez/pict_research.html

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Jón Erlendsson 2001-03-27  (18.00)                             
TEL:  WORK:   354-527.4666    354-527.4666    HOME:  354-565.2238 
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