Appropriation de la temporalité au cours du vieillissement normal et pathologique

Abstract : To approach the representation of time and perturbations in time perception for daily activities in mild and moderate Alzheimer's disease patients, we study a temporal semantic knowledge scale and a time duration estimation about daily activities test, in a control group and in a group of 22 patients. The patients also had a general neuropsychological assessment. We conducted with 6 of these patients a semi structured interview. These 6 patients were followed-up with an other similar evaluation. We create a paradigm with the same material to explore brain areas involved in time duration estimation of daily activities. Age and cultural level, but not gender, influence the semantic knowledge scale, which is significatively impaired in patients. Temporal segmentation, independant from cultural level, appears to be the best preserved acquisitions. There is no difference in time duration estimation test about daily activities between controls and patients who seems to use their preserved procedural memory process connected to the scripts of the actions knowledge. The analysis of the interviews using interlocutory logic, gave us a deep understanding of how the patients experience time. Their perception of time is impaired. The estimation duration is significatively more impaired than chronology. The alterations of temporality in Alzheimer's disease have serious impact in daily life of patients and their caregivers. Results will be helpful to develop their diagnosis, elaborate strategies to help the patients and for tutoring interventions for caregivers and professionnals.
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Marie-Thérèse Rivasseau - Jonveaux. Appropriation de la temporalité au cours du vieillissement normal et pathologique. Psychologie. Université Nancy 2, 2010. Français. ⟨NNT : 2010NAN21024⟩. ⟨tel-01748888⟩

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