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Indentification des facteurs sous-tendant la relation entre personnalité et la santé physique lors de l'avancée en âge : le rôle des facteurs démographiques, médicaux, et environnementaux

Abstract : Given the economic, environmental, and health issues related to the increasing number of people over 65 years in the coming decades, the identification of the factors associated with the maintenance or the degradation of physical health with advancing age is a major public health concern. Personality, as defined by the Five-Factors Model (FFM, Digman, 1990), is consistently associated with physical health in old age. However, few studies have focused on the underlying mechanisms of this relation. Based upon a five studies research program, the present doctoral dissertation aimed to contribute to current knowledge by identifying a number of factors which may modulate and explain the contribution of personality traits on markers of physical health with advancing age. This research revealed a moderating role of chronological age in the relation between personality, and openness to experiences in particular, and perceived health (study 1), which appeared to be dependent upon disease burden (study 2). Moreover, the contribution of personality on markers of physical health does not seem to be activated by the exposure to age-related stereotype (study 3). Finally, the present doctoral project confirmed the relation between openness to experience and a youthful subjective age, which is a recognized protective factor for physical health in old age, and identified the mediating role of age-group dissociation in this relationship (study 4). The tendencies to dissociate oneself from one's age group and to feel younger among open older people seem to be independent of the context and the environment (study 5). This doctoral dissertation contributes to an in-depth understanding of the mechanisms underlying the contribution of personality traits on physical health with advancing age, and adds to a growing body of research emphasizing the implications of openness to experience for global health and functioning of older people.
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Brice Canada. Indentification des facteurs sous-tendant la relation entre personnalité et la santé physique lors de l'avancée en âge : le rôle des facteurs démographiques, médicaux, et environnementaux. Médecine humaine et pathologie. Université de Grenoble, 2014. Français. ⟨NNT : 2014GRENS021⟩. ⟨tel-01557557⟩

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