Visualizando a elaboração da linguagem em surdos bilíngues por meio da ressonância magnética funcional

Michelle Nave Valadão; Myriam de Lima Isaac; Sara Regina Escorsi Rosset; Draulio Barros de Araujo; Antonio Carlos dos Santos

Authors

Michelle Nave Valadão UFV ##default.groups.name.author##
Myriam de Lima Isaac USP ##default.groups.name.author##
Sara Regina Escorsi Rosset USP ##default.groups.name.author##
Draulio Barros de Araujo UFRN ##default.groups.name.author##
Antonio Carlos dos Santos USP ##default.groups.name.author##

Keywords:

Brazilian Sign Language, sign language, language, deafness, functional magnetic resonance imaging

Abstract

Sign languages are natural languages that have the same properties of oral languages. This study aimed to identify the cortical areas activated in bilingual deaf subjects who communicate through Brazilian Sign Language and Portuguese Language. Tasks involved the production of language. Thirteen functional magnetic resonances imaging (fMRI) exams were performed. An Echo Planar Imaging (EPI) sequence was used to obtain the BOLD (Blood Oxygen Level Dependent), associated with a whole brain high resolution imaging for co-register. The statistical maps were obtained using the General Linear Model with Brain Voyager^TMsoftware. The task of producing Brazilian Sign Language provided more significant activations than did the task of producing Portuguese Language, suggesting that bilingual deaf subjects present a higher language proficiency in sign language.

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References

BAVELIER, D. et al. Impact of early deafness and early exposure to sign language on the cerebral organization for motion processing. The Journal of Neuroscience, v.21, n.22, p.8931-8942, 2001.

BEHARES, L. E.; PELUSO, L. A Língua Materna dos Surdos. Revista Espaço. INES. Rio de Janeiro, 1997.

BRAUN, A.R. et al. The neural organization of discourse: An H2 15O-PET study of narrative production in English and American Sign Language. Brain, v.124, n.10, p.2028-2044, 2001.

CAMPBELL, R.; CAPEK, C.M. Seeing speech and seeing sign: insights from a fMRI study. International Journal of Audiology, v.47, p.3-9, 2008. Supplement 2.

CAMPBELL, R.; MACSWEENEY, M.; WATERS, D. Sign language and the Brain: a review. Journal of Deaf Studies and Deaf Education, v.13, n.1, p. 3-20, 2008.

CAPEK C. M. et al. Hand and mouth: Cortical correlates of lexical processing in British Sign Language and speech reading English. Journal of Cognitive Neuroscience, v.20, n.7, p.1-15, 2008.

CAPEK, C. M. et al. Superior temporal activation as a function of linguistic knowledge: insights from deaf native signers who speechread. Brain and Language, v.112, n.2, p.129-34, 2010.

CAPOVILLA, F.C. et al. Avaliando compreensão de sinais da Libras em escolares surdos do ensino fundamental. Interação em Psicologia, v.8, n.2, p.159-169, 2004.

CAPOVILLA, F.C.; RAPHAEL, W.D.; LUZ, R.D. Capítulos introdutórios. IN: CAPOVILLA, F.C.; RAPHAEL, W.D. Dicionário Enciclopédico Ilustrado Trilíngue da Língua de Sinais Brasileira Sinais de M a Z, v. II. 2.ed. São Paulo: Editora da Universidade de São Paulo - Imprensa Oficial do Estado, 2001.

CORINA, D.P. et al Functional roles of broca's area and SMG: Evidence from cortical stimulation mapping in a deaf signer. Neuroimage, v.10, n.5, p.570-581, 1999.

COSTAFREDA, S.G. et al. A systematic review and quantitative appraisal of fMRI studies of verbal fluency: role of the left inferior frontal gyrus. Human Brain Mapping, v.27, n.10, p.799-810, 2006.

DAVIS, H. Abnormal hearing and deafness. IN: DAVIS, H.; SILVERMAN, S.R. Hearing and deafness 3Th ed. New York: Rinehart and Winston, 1970.

EMMOREY, K.; MCCULLOUGH, S. The bimodal bilingual brain: Effects of sign language experience. Brain and Language, v.109, n.2-3, p.124-132, 2009.

GOMEZ-TORTOSA, E. et al Selective deficit of phone language in a bilingual patient following surgery in the left perisylvian area. Brain and Language, v.48, n.3, p.320-325, 1995.

HAMERS, J. F.; BLANC, M. H. A. Bilinguality & Bilingualism. Cambridge: Cambridge University Press, 1989.

HARRISON, K. M. P.; LODI, A. C. B.; MOURA, M. C. Escolas e escolhas: processo educacional dos surdos. IN: FILHO, O. L. Tratado de Fonoaudiologia 2ª.ed. Ribeirão Preto: Tecmedd, 2005.

HUETTEL, S. A.; SONG, A. W.; McCARTHY, G. Functional Magnetic Ressonance Imaging Sunderland: Sinauer Associates, 2004.

JUSTINA, H. M. D. Variabilidade da atividade cerebral em resposta a estímulos vestibular e oculomotor avaliada por fMRI. Ribeirão Preto: USP, 2005. Dissertação (Mestrado) - Faculdade de Filosofia Ciências e Letras da Universidade de São Paulo, Ribeirão Preto, 2005.

KEEHNER, M.; GATHERCOLE, S. E. Cognitive adaptations arising from nonnative experiences of sign language in hearing adults. Memory & Cognition, v.35, n.4, p.752-761, 2007.

KIM, K. H. S. et al. Distinct cortical areas associated with native and second language. Nature, v.388, n.10, p.171-174, 1997.

LACERDA, C. B. F Um pouco da história das diferentes abordagens na educação dos surdos. Cadernos CEDES, v.9, n.46, s/p, 1998.

LURITO, J. T. et al Comparison of rhyming and word generation with fMRI. Human Brain Mapping, v.10, n.3, p.99-106, 2000.

MACSWEENEY, M. et al. Neural systems underlying British Sign Language and audiovisual English processing in native users. Brain, v.125, n.7, p.1583-1593, 2002a.

MACSWEENEY, M. et al. Neural correlates of British Sign Language comprehension: Spatial processing demands of topographic language. Journal of Cognitive Neuroscience, v.14, n.7, p.1064-1075, 2002b.

MACSWEENEY, M. et al. Dissociating linguistic and nonlinguistic gestural communication in the brain. Neuroimage, v.22, n.4, p.1605-1618, 2004.

MACSWEENEY, M. et al. The signing brain: the neurobiology of sign language. Trends in Cognitive Sciences, v.12, n.11, p.432-440, 2008.

MATELLI, M.; LUPPINO, G. Functional anatomy of human motor cortical areas. IN: BOLLER, F.; GRAFMAN, J. Handbook of neuropsychology Amsterdam: Elsevier Science, 1997.

MOURA, M. C.; LODI, A. C. B.; HARISSON, K. M. P. História e educação do surdo, a oralidade e o uso de sinais. IN: FILHO, O.L. Tratado de Fonoaudiologia 2ª.ed. Ribeirão Preto: Tecmedd, 2005.

NEVILLE, H. J. et al. Neural systems mediating American Sign Language: Effects of sensory experience and age of acquisition. Brain and Language, v.57, n.3, p.285-308, 1997.

NEVILLE, H. J. et al. Cerebral organization for language in deaf and hearing subjects: biological constraints and effects of experience. Proceedings of the National Academy of Sciences, v.95, n.3, p.922-029, 1998.

NEWMAN, A. J. et al. A critical period for right hemisphere recruitment in American Sign Language processing. Nature Neuroscience, v.5, n.1, p.76-80, 2002.

OGAWA, S. et al. Brain magnetic resonance imaging with contrast dependent on blood oxygenation. Proceedings of the National Academy of Sciences, v.87, n.24, p.9868-72, 1990a.

OGAWA, S. et al. Oxygenation-sensitive contrast in magnetic resonance image of rodent brain at high magnetic fields. Magnetic Resonance in Medicine, v.14, n.1, p.68-78, 1990b.

PETITO, L. A. et al. Speech-like cerebral activity in profoundly deaf people while processing signed languages: implications for the neural basis of all human language. Proceedings of the National Academy of Sciences, v.97, n.25, p.3961-13966, 2000.

PICARD, N.; STRICK, P. L. Imaging the premotor areas. Current Opinion in Neurobiology, v.11, n.6, p.663-672, 2001.

QUADROS, R. M. Educação de surdos: a aquisição da linguagem. Porto Alegre: Artes Médicas, 1997.

QUADROS, R. M.; KARNOPP, L. B. Língua de sinais brasileira: estudos linguísticos. Porto Alegre: Arqmed, 2004.

RIZZOLATTI, G.; CRAIGHERO, L. The mirror-neuron system. Annual Review of Neuroscience, v.27, n.1, p.169-192, 2004.

SAN JOSÉ-ROBERTSON, L. et al. Neural systems for sign language production: mechanisms supporting lexical selection, phonological encoding, and articulation. Human Brain Mapping, v.23, n.3, p.156-167, 2004.

SILVA, A. B. P.; PEREIRA, M. C. C.; ZANOLI, M. L. Mães ouvintes com filhos surdos: concepção de surdez e escolha da modalidade de linguagem. Psicologia: Teoria e Pesquisa, v.23, n.3, p.279-286, 2007.

SILVA, I. R. Quando ele fica bravo, o português sai direitinho; fora disso, a gente não entende nada: o contexto multilíngue da surdez e o (re) conhecimento das línguas no seu entorno. Trabalhos de Linguística Aplicada, v.42, n.2, p.393-407, 2008.

TALAIRACH, J.; TOURNOUX, P. Co-plannar stereotaxic atlas of the human brain New York: Thieme Medical Publishers, 1988.

ZATORRE, R. On the representation of multiple languages in the brain: old problems and new directions. Brain and Language, v.36, n.1, p.127-147, 1989.