| Popis: |
The aim of this study is to investigate a question of the role of interhemispheric cognitive reorganization in aphasics. The 51 left brain-damaged patients took part in this study. Four groups of fluent and non-fluent aphasics with different stages after post-onset were studied. The results of Luria’s neuropsychological diagnosis battery (special attention was paid to solving right hemisphere tasks as recognition of objects and letters in a highly distracted field, mental rotation, faces recollection etc. ), the type of aphasia and a dichotic listening task have been surveyed. The results: 1. There has not been found any significant correlations between a left ear effect on the one hand and a type of aphasia and a stage after post-onset on the other hand. The left ear effect occurred in all groups. 2. A high level of a left ear superiority has been shown in the majority of aphasics. 3. A left ear superiority has occurred simultaneously with the a right hemisphere dysfunction symptoms. This dysfunctional area has been homological to the speech area in a left hemisphere. The persistence of occurrence of the right hemisphere symptoms could be regarded as a side-effect of the interhemispheric reorganization. |
