chapter  12
Visuospatial Representation of Number Magnitude
Pages 12

A ccording to an inuential model proposed by Dehaene (i.e., the triple code model; e.g., Dehaene, 1992), numbers are mentally represented in three ways. One is the visual-Arabic code, in which numbers are represented as strings of visual forms (e.g., <21452>). In the verbal code, numbers are represented as sequences of number-words syntactically organized (e.g., <two-thousand fourhundred and fty-two>). In addition to the visual-Arabic code and the verbal code, Dehaene’s model postulates the existence of an analogical code, based on which numbers are represented as local activations (points or regions) along a continuous, analogue mental number line (MNL; e.g., Dehaene, 2003; also see Gallistel & Gelman, 1992, 2000, for a different view of the MNL).