Étude de l’effet structurant des éléments d’un jardin thérapeutique sur la navigation dans la maladie d’Alzheimer : apprentissage de trajet et acquisition des connaissances spatiales

Abstract : The originality of this research is to focus on the characteristics of the physical environment and their impact on navigation and spatial memory capabilities. This field, until then little investigated, represents a societal stake for the autonomy and the well-being of the person. In particular, navigation difficulties have been described in normal aging and Alzheimer's disease (AD) in the early stage. However, the physical environment can support individuals' spatial abilities/skills, or, on the contrary, disrupt them.The aim of the present study is to assess the structuring effect of the elements of a real environment rich in landmarks, the “art, memory and life” healing garden of the CHRU of Nancy, on route learning, and on the acquisition of the spatial knowledge, in a population of subjects with AD. Indeed, the spatial organization of this garden has been designed to contribute, among other things, to alleviate the difficulties of these people in terms of spatial cognition.All the elements of the garden have been listed and integrated into a classification inspired by the works of Lynch (1960) and Zeisel and Tyson (1999). Thirty subjects with mild to moderate AD and 30 matched healthy subjects underwent the following protocol: (1) route learning (forward and return trips), during which the verbal description of the route was recorded; (2) a series of tasks assessing the acquisition of spatial knowledge of the garden as well as (3) standard cognitive tests. The speech was transcribed verbatim and subjected to a content analysis.The results show a significant residual route learning ability in the MA group, both on the forward and return trips. The repetition of the route and the richness of the environmental landmarks seem to have contributed to this result. Experimental task performances were cross-checked with discourse analysis and standard cognitive tests. The results highlight a preponderant role of certain characteristics of environmental elements, such as saliency and affordance, on the learning performances of route and spatial memory, and this even more markedly in the subjects of the MA group.The structuring effect of the elements of the environment is discussed on the one hand in healthy older subjects with regard to cognitive processes involved in the navigation and acquisition of spatial knowledge and on the other hand preserved and dysfunctional processes in the course of Alzheimer’s disease
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Theses
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http://docnum.univ-lorraine.fr/ulprive/DDOC_T_2017_0378_JACOB.pdf
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https://hal.univ-lorraine.fr/tel-02055863
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Submitted on : Monday, March 4, 2019 - 12:15:58 PM
Last modification on : Friday, October 25, 2019 - 11:16:01 PM

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  • HAL Id : tel-02055863, version 1

Citation

Christel Jacob. Étude de l’effet structurant des éléments d’un jardin thérapeutique sur la navigation dans la maladie d’Alzheimer : apprentissage de trajet et acquisition des connaissances spatiales. Psychologie. Université de Lorraine, 2017. Français. ⟨NNT : 2017LORR0378⟩. ⟨tel-02055863⟩

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