Abstract
Right-brain-damaged individuals may present discursive, pragmatic, lexical-semantic and/or prosodic disorders. Objective: To verify the effect of right hemisphere damage on communication processing evaluated by the Brazilian version of the Protocole Montréal d'Évaluation de la Communication (Montreal Communication Evaluation Battery) - Bateria Montreal de Avaliação da Comunicação, Bateria MAC, in Portuguese. Methods: A clinical group of 29 right-brain-damaged participants and a control group of 58 non-brain-damaged adults formed the sample. A questionnaire on sociocultural and health aspects, together with the Brazilian MAC Battery was administered. Results: Significant differences between the clinical and control groups were observed in the following MAC Battery tasks: conversational discourse, unconstrained, semantic and orthographic verbal fluency, linguistic prosody repetition, emotional prosody comprehension, repetition and production. Moreover, the clinical group was less homogeneous than the control group. Conclusions: A right-brain-damage effect was identified directly, on three communication processes: discursive, lexical-semantic and prosodic processes, and indirectly, on pragmatic process.
Key words:
neuropsychology; right hemisphere; brain damage; communication.
Resumo
Os indivíduos com lesão vascular de hemisfério direito podem apresentar distúrbios discursivos, pragmáticos, léxico-semânticos e/ou prosódicos. Objetivo: Verificar o efeito da lesão de hemisfério direito no processamento comunicativo avaliado pela versão Brasileira do Protocole Montréal d'Évaluation de la Communication - Bateria Montreal de Avaliação da Comunicação, Bateria MAC (em português). Métodos: Participaram do estudo um grupo clínico, com 29 adultos lesados de hemisfério direito, e um grupo controle, com 58 adultos sem lesão neurológica. Foram administrados um questionário de dados socioculturais e aspectos da saúde e a Bateria MAC. Resultados: Houve diferenças significativas entre os grupos clínico e controle nas tarefas da Bateria MAC discurso conversacional, evocação lexical livre, com critério ortográfico e semântico, prosódia lingüística repetição, prosódia emocional compreensão, repetição e produção. Além disso, o grupo clínico mostrou-se menos homogêneo do que o controle. Conclusões: Identificou-se o efeito da lesão de hemisfério direito em três processamentos comunicativos: discursivo, léxico-semântico e prosódico e, indiretamente, no processamento pragmático.
Palavras-chave:
neuropsicologia; hemisfério direito; lesão cerebral; comunicação.
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Publication Dates
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Publication in this collection
Jul-Sep 2007