Fokal beyin hasarlı hastalarda hikaye anlatımı: Makro - düzey analiz

Focal brain injury has detrimental effects on producing narratives. This study examined the narrative production of unilateral brain damaged patients and healthy controls by focusing on the narrative complexity and the evaluative aspect of their narratives. The results showed that narratives of the left hemisphere damaged (LHD) patients were less complex as indicated by fewer story components included in their narratives compared to the controls. In addition, they had problems in maintaining the overall theme of the story. The evaluative aspect of the LHD patients' narratives was also deficient compared to the controls. The right hemisphere damaged (RHD) patients seemed to be preserved in both of these linguistic abilities as a group. Yet, the single case analyses revealed that particular regions in the right hemisphere such as damage to the frontal lobe including the dorsolateral prefrontal cortex (DLPFC), both the anterior and superior temporal gyrus, the middle temporal gyrus, and the supramarginal gyrus can lead to problems in creating narratives. These findings suggest that an intact left hemisphere is needed for both the production of complex narratives that can be enriched through the use of evaluation. In addition, damage to the right frontotemporal regions and the left frontal regions together with the left insula seems to be related to the production of complex narratives.