Numbers and space: a cognitive illusion?

Numbers and space: a cognitive illusion? Research Abstract Details

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Numbers and space: a cognitive illusion? Abstract Text:

Maria Dolores de Hevia,Luisa Girelli,Giuseppe Vallar,

This study investigated the relationships between numerical and spatial representations by means of a bisection task, exploring the view that the core representation of number meaning is spatially organized as a mental number line. In Experiment nos. 1 (bisection of digit strings) and 2 (bisection of flanked lines) spatial biases towards the larger digit were found to be related only to processing of relative magnitude. Experiment nos. 3 (bisection of an unfilled space) and 4 (bisection of flanked lines/unfilled spaces) aimed at disclosing perceptual, attentional, and numerical constraints on the bias induced by the position of the larger digit. This effect is interpreted in terms of a cognitive illusion of length, whereby a spatial bias compensates for the numerical disparity. This seems to operate in a categorical fashion ("small/large"), and to be congruent with the assumption that relatively large numbers are associated with the right side of a mental representational space.

Numbers and space: a cognitive illusion? Publishing Authors By Initials

M Dolores de Hevia,L Girelli,G Vallar,

For similar natural sciences: weights and measures research abstracts see: natural sciences: weights and measures research

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Numbers and space: a cognitive illusion? Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Experimental brain research. Experimentelle Hirnfo

VOLUME: 168

Page Numbers: 254-64

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ISSN: 0014-4819

DAY: 26

MONTH: 07

YEAR: 2005

Numbers and space: a cognitive illusion? Information

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LANGUAGE: eng

NlmUniqueID: 43312

Numbers and space: a cognitive illusion? Keywords Mesh Terms:

KEYWORDS: Weights and Measures

MESH TERMS: physiology

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Grant and Affiliation Information for Numbers and space: a cognitive illusion?

AFFILIATION: Dipartimento di Psicologia, Universit� degli Studi Milano-Bicocca, Edificio U6 Piazza dell'Ateneo Nuovo, 1, 20126, Milano, Italy. lola.dehevia@unimib.it

Country: Germany