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dc.contributor.author
Vinckier, Fabien
dc.contributor.author
Dehaene, Stanislas
dc.contributor.author
Jobert, Antoinette
dc.contributor.author
Dubus, Jean Philippe
dc.contributor.author
Sigman, Mariano
dc.contributor.author
Cohen, Laurent
dc.date.available
2019-01-07T13:59:59Z
dc.date.issued
2007-12
dc.identifier.citation
Vinckier, Fabien; Dehaene, Stanislas; Jobert, Antoinette; Dubus, Jean Philippe; Sigman, Mariano; et al.; Hierarchical Coding of Letter Strings in the Ventral Stream: Dissecting the Inner Organization of the Visual Word-Form System; Cell Press; Neuron; 55; 1; 12-2007; 143-156
dc.identifier.issn
0896-6273
dc.identifier.uri
http://hdl.handle.net/11336/67508
dc.description.abstract
Visual word recognition has been proposed to rely on a hierarchy of increasingly complex neuronal detectors, from individual letters to bigrams and morphemes. We used fMRI to test whether such a hierarchy is present in the left occipitotemporal cortex, at the site of the visual word-form area, and with an anterior-to-posterior progression. We exposed adult readers to (1) false-font strings; (2) strings of infrequent letters; (3) strings of frequent letters but rare bigrams; (4) strings with frequent bigrams but rare quadrigrams; (5) strings with frequent quadrigrams; (6) real words. A gradient of selectivity was observed through the entire span of the occipitotemporal cortex, with activation becoming more selective for higher-level stimuli toward the anterior fusiform region. A similar gradient was also seen in left inferior frontoinsular cortex. Those gradients were asymmetrical in favor of the left hemisphere. We conclude that the left occipitotemporal visual word-form area, far from being a homogeneous structure, presents a high degree of functional and spatial hierarchical organization which must result from a tuning process during reading acquisition. © 2007 Elsevier Inc. All rights reserved.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cell Press
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Sysneuro
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Hierarchical Coding of Letter Strings in the Ventral Stream: Dissecting the Inner Organization of the Visual Word-Form System
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-02T19:33:50Z
dc.journal.volume
55
dc.journal.number
1
dc.journal.pagination
143-156
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Vinckier, Fabien. Inserm; Francia
dc.description.fil
Fil: Dehaene, Stanislas. Inserm; Francia
dc.description.fil
Fil: Jobert, Antoinette. Inserm; Francia
dc.description.fil
Fil: Dubus, Jean Philippe. Hôpital Universitaire Pitié Salpêtrière; Francia
dc.description.fil
Fil: Sigman, Mariano. Inserm; Francia. Universite Paris-sud Xi; . Cea/dsv; . Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Cohen, Laurent. Inserm; Francia. Hôpital Universitaire Pitié Salpêtrière; . Cea/dsv;
dc.journal.title
Neuron
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.neuron.2007.05.031


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