O conceito de sistema neurofuncional aplica-se à percepção de faces?
DOI:
https://doi.org/10.34024/rnc.2008.v16.8623Palavras-chave:
Face, Processamento Mental, NeurociênciasResumo
Este estudo teve por objetivo discutir as principais controvérsias quanto à representação cerebral de faces, considerando os conceitos de sistema neurofuncional complexo. Atualmente os neurocientistas têm questionado se o cérebro processa e representa as informações de modo modular ou distribuído. Alguns estudos apontam para a existência de módulos neurais especializados para percepção de faces, visto que algumas regiões corticais apresentam fluxo sangüíneo aumentado quando os sujeitos vêem imagens de faces, comparadas com imagens de objetos. Em contrapartida, alguns autores acreditam que a representação de faces não se localiza em uma área particular do córtex, mas está baseada em um padrão distribuído e entrelaçado de resposta neural. É provável que nenhum extremo seja correto quando se considera a teoria modular e distribuída. Seria pertinente apontar para situações intermediárias. Concluiu-se que a representação de faces ocorre por meio de regiões cerebrais interconexas que processam as informações em série e em paralelo. Existe um processamento distribuído e sobreposto, no qual várias regiões contribuem para a representação de face, porém existem regiões cerebrais especializadas, que
respondem com maior efetividade a imagens da face.
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Publicado: 2008-12-31
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