Comunicação em adultos com lesão vascular de hemisfério direito : dados clínicos com bateria breve, neuroimagem e implicações para reabilitação neuropsicológica comportamental

• Autor(a) principal: Oliveira, Camila Rosa de
• Data de Publicação: 2012
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da PUC_RS
• Texto Completo: http://tede2.pucrs.br/tede2/handle/tede/795
• topic: PSICOLOGIA; PSICOLOGIA COGNITIVA; NEUROCOGNIÇÃO; ACIDENTE CEREBROVASCULAR; CNPQ::CIENCIAS HUMANAS::PSICOLOGIA

Communication abililities are often impaired in patients with right hemisphere damage (RBD). This dissertation investigates the profile of cognitive and communication processing following a RBD. In addition, it characterizes neural correlates of brain reorganization of RBD case by means of neuropsuchological assessment and functional magnetic resonance imaging (fMRI). Thus, the first study included 39 adults with RBD and 39 healthy controls, evaluated by the Brazilian Brief Neuropsychological Assessment Battery NEUPSILIN. The performance of the groups was compared by ANCOVA, as well as the frequency of deficits in LHD group was calculated. RBD group showed poorer performance on visual perception, recognition memory, arithmetic and written language processes. There is evidence that brief neuropsychological tools can be useful for the initial diagnostic hypotheses of cognitive functioning within the RBD. The second study included 50 adults with RBD, 25 adults with LBD (clinical control) and 50 healthy controls, examined by the Montreal Communication Evaluation Battery, abbreviated version. Adults with RBD showed an inferior performance compared to healthy controls in 89% of the tasks (one-way ANOVA). No differences were observed between adults with RBD and LBD. The results suggest evidence of hemispheric specialization (emotional prosody and lexical-semantic) and cooperation (discursive and pragmatic-inferential). The third study evaluated an adult with RBD (case CR) and a matched healthy control by means of a neuropsychological battery and an fMRI task of phonemic and semantic verbal fluency. CR showed different areas of activation in comparison to healthy control, suggesting an increased demand for bilateral activation towards a functional reorganization. This study presents initial evidence of brain reorganization after RBD for lacunar infarction.