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While most people with schizophrenia face the functional consequences of a lifelong disorder, very few studies have investigated the specific domain of daily living activities performance. The purpose of this thesis was to examine the relationships between daily activity performance, cognitive deficits, and community functioning in people with schizophrenia. More specifically, the objectives were: 1) to describe functional limitations during daily task performance, 2) to explore the existence of subgroups of participants with similar functional limitations profiles, 3) to explore the relationships between daily task performance and cognitive functions as well as 4) with community functioning. This thesis tested the hypothesis that limitations in task performance negatively influence community functioning. / A sample of 82 individuals with schizophrenia and 28 healthy controls participated in this study and were assessed during a meal preparation task with the Perceive, Recall, Plan and Perform (PRPP) System of Task Analysis and on cognitive tests of visuospatial memory, spatial working memory, visuomotor coordination, planning and selective attention. Community functioning was assessed with the Independent living Skills Survey and the Multnomah Community Ability Scale. Limitations in the Perceive, Recall and Plan quadrants of the PRPP System, were found in participants with schizophrenia when compared to a control group (n = 28), as well as in the complete sample (n = 82). Participants in the high-efficiency subgroup ( n =36) were more independent in daily living and performed better on the visuospatial associative learning task than the low-efficiency subgroup (n = 46). At the specific level of individual profiles, participants were distributed along a continuum of low- to high-functioning on the PRPP System factors and on functional, cognitive, and clinical characteristics. / The associative learning task was most associated with task performance, along with working memory and planning. Finally, less efficient planning skills were associated with a lower level of community functioning, confirming the hypothesis. These results emphasize the relationship of associative visual memory to daily task performance, as well as that of efficiency in daily activities for residential status. Integrating these findings into the rehabilitation process will contribute to better meeting the needs of people with schizophrenia.

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O efeito da reabilitação neuropsicológica foi verificado em uma amostra de 16 pacientes com diagnóstico de doença de Alzheimer leve e moderado. Após ensaio clínico aberto com rivastigmina por 4 meses, os pacientes foram divididos em três grupos: sessões em grupo, individual e em casa com o cuidador. Os três grupos realizaram o mesmo protocolo de reabilitação, e antes e depois das 22 semanas de tratamento foram avaliados pelos mesmos instrumentos. Os resultados indicaram que as sessões em grupo são mais eficientes para sintomas psiquiátricos; individual para atividades da vida diária; e em casa, dependendo do perfil do paciente e do cuidador, pode ser uma alternativa de tratamento / The effect of a neuropsychological rehabilitation was tested in a sample of 16 patients with mild and moderate Alzheimer disease. After an open trial with rivastigmine for 4 months, they were divided in 3 groups: group sessions, individualized and at home with a caregiver. All 3 groups fulfilled the same rehabilitation protocol, and just before and after the 22 week period of treatment, all patients were evaluated using the same instruments. The results of the study indicated that group session are more effective for psychiatric symptoms, individualized sessions for activities of daily living training and at home training, depending on the patient's and caregiver's profiles, can be an option for treatment of these patients

O efeito da reabilitação neuropsicológica foi verificado em uma amostra de 16 pacientes com diagnóstico de doença de Alzheimer leve e moderado. Após ensaio clínico aberto com rivastigmina por 4 meses, os pacientes foram divididos em três grupos: sessões em grupo, individual e em casa com o cuidador. Os três grupos realizaram o mesmo protocolo de reabilitação, e antes e depois das 22 semanas de tratamento foram avaliados pelos mesmos instrumentos. Os resultados indicaram que as sessões em grupo são mais eficientes para sintomas psiquiátricos; individual para atividades da vida diária; e em casa, dependendo do perfil do paciente e do cuidador, pode ser uma alternativa de tratamento / The effect of a neuropsychological rehabilitation was tested in a sample of 16 patients with mild and moderate Alzheimer disease. After an open trial with rivastigmine for 4 months, they were divided in 3 groups: group sessions, individualized and at home with a caregiver. All 3 groups fulfilled the same rehabilitation protocol, and just before and after the 22 week period of treatment, all patients were evaluated using the same instruments. The results of the study indicated that group session are more effective for psychiatric symptoms, individualized sessions for activities of daily living training and at home training, depending on the patient's and caregiver's profiles, can be an option for treatment of these patients