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Abstract:

Written mathematical notation conveys, in a compact visual form, the nested functional relations among abstract concepts such as operators, numbers or sets. Is the comprehension of mathematical expressions derived from the human capacity for processing the recursive structure of language? Or does algebraic processing rely only on a language-independent network, jointly involving the visual system for parsing the string of mathematical symbols and the intraparietal system for representing numbers and operators? We tested these competing hypotheses by scanning mathematically trained adults while they viewed simple strings ranging from randomly arranged characters to mathematical expressions with up to three levels of nested parentheses. Syntactic effects were observed in behavior and in brain activation measured with functional magnetic resonance imaging (fMRI) and magneto-encephalography (MEG). Bilateral occipito-temporal cortices and right parietal and precentral cortices appeared as the primary nodes for mathematical syntax. MEG estimated that a mathematical expression could be parsed by posterior visual regions in less than 180. ms. Nevertheless, a small increase in activation with increasing expression complexity was observed in linguistic regions of interest, including the left inferior frontal gyrus and the posterior superior temporal sulcus. We suggest that mathematical syntax, although arising historically from language competence, becomes "compiled" into visuo-spatial areas in well-trained mathematics students. © 2012 Elsevier Inc.

Registro:

Documento: Artículo
Título:The cortical representation of simple mathematical expressions
Autor:Maruyama, M.; Pallier, C.; Jobert, A.; Sigman, M.; Dehaene, S.
Filiación:INSERM, U992, Cognitive Neuroimaging Unit, F-91191 Gif/Yvette, France
CEA, DSV/I2BM, NeuroSpin Center, F-91191 Gif/Yvette, France
Univ Paris-Sud, Cognitive Neuroimaging Unit, F-91191 Gif/Yvette, France
Laboratory of Integrative Neuroscience, Physics Department, University of Buenos Aires, Buenos Aires, Argentina
Collège de France, F-75005 Paris, France
Palabras clave:Functional magnetic resonance imaging; Language; Magnetoencephalography; Mathematics; Syntax; adult; amygdaloid nucleus; article; brain function; brain region; cerebellum; controlled study; electroencephalogram; female; functional magnetic resonance imaging; hippocampus; human; human experiment; inferior frontal gyrus; magnetoencephalography; male; mathematical computing; memory consolidation; middle frontal gyrus; operculum (brain); priority journal; putamen; right hemisphere; superior temporal sulcus; supramarginal gyrus; task performance; Adult; Brain; Brain Mapping; Comprehension; Female; Humans; Image Interpretation, Computer-Assisted; Magnetic Resonance Imaging; Magnetoencephalography; Male; Mathematical Concepts; Photic Stimulation; Signal Processing, Computer-Assisted; Young Adult
Año:2012
Volumen:61
Número:4
Página de inicio:1444
Página de fin:1460
DOI: http://dx.doi.org/10.1016/j.neuroimage.2012.04.020
Título revista:NeuroImage
Título revista abreviado:NeuroImage
ISSN:10538119
CODEN:NEIME
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10538119_v61_n4_p1444_Maruyama

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Citas:

---------- APA ----------
Maruyama, M., Pallier, C., Jobert, A., Sigman, M. & Dehaene, S. (2012) . The cortical representation of simple mathematical expressions. NeuroImage, 61(4), 1444-1460.
http://dx.doi.org/10.1016/j.neuroimage.2012.04.020
---------- CHICAGO ----------
Maruyama, M., Pallier, C., Jobert, A., Sigman, M., Dehaene, S. "The cortical representation of simple mathematical expressions" . NeuroImage 61, no. 4 (2012) : 1444-1460.
http://dx.doi.org/10.1016/j.neuroimage.2012.04.020
---------- MLA ----------
Maruyama, M., Pallier, C., Jobert, A., Sigman, M., Dehaene, S. "The cortical representation of simple mathematical expressions" . NeuroImage, vol. 61, no. 4, 2012, pp. 1444-1460.
http://dx.doi.org/10.1016/j.neuroimage.2012.04.020
---------- VANCOUVER ----------
Maruyama, M., Pallier, C., Jobert, A., Sigman, M., Dehaene, S. The cortical representation of simple mathematical expressions. NeuroImage. 2012;61(4):1444-1460.
http://dx.doi.org/10.1016/j.neuroimage.2012.04.020