Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.1/4874
Título: Cortical brain regions associated with color processing: an FMRI study
Autor: Bramão, Inês
Faísca, Luís
Forkstam, Christian
Reis, Alexandra
Petersson, Karl Magnus
Palavras-chave: FMRI
Color information and processing
Naming
Natural objects
Artifacts objects
Non-objects
Data: 2010
Editora: Bentham Open
Citação: Bramão, Inês; Faísca, Luís; Forkstam, Christian; Reis, Alexandra; Petersson, Karl Magnus. Cortical brain regions associated with color processing: an FMRI study, The open neuroimaging journal, 4, 1, 164-173, 2010.
Resumo: To clarify whether the neural pathways concerning color processing are the same for natural objects, for artifacts objects and for non-objects we examined brain responses measured with functional magnetic resonance imaging (FMRI) during a covert naming task including the factors color (color vs. black&white (B&W)) and stimulus type (natural vs. artifacts vs. non-objects). Our results indicate that the superior parietal lobule and precuneus (BA 7) bilaterally, the right hippocampus and the right fusifom gyrus (V4) make part of a network responsible for color processing both for natural objects and artifacts, but not for non-objects. When color objects (both natural and artifacts) were contrasted with color non-objects we observed activations in the right parahippocampal gyrus (BA 35/36), the superior parietal lobule (BA 7) bilaterally, the left inferior middle temporal region (BA 20/21) and the inferior and superior frontal regions (BA 10/11/47). These additional activations s uggest that colored objects recruit brain regions that are related to visual semantic information/retrieval and brain regions related to visuo-spatial processing. Overall, the results suggest that color information is an attribute that can improve object recognition (behavioral results) and activate a specific neural network related to visual semantic information that is more extensive than for B&W objects during object recognition
Peer review: yes
URI: http://hdl.handle.net/10400.1/4874
Aparece nas colecções:FCH2-Artigos (em revistas ou actas indexadas)

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