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Impact of a Healing Garden on Self-Consciousness in Patients with Advanced Alzheimer's Disease: An Exploratory Study1.

BACKGROUND
The environment of patients with Alzheimer's disease and related disorders (ADRD) intensifies the consequences of cognitive impairment and exacerbates behavioral problems if inappropriate or, conversely, mitigate these problems if its design is tailored to the needs of these persons.


OBJECTIVE
We evaluate the impacts of hospitalization and of a specific healing garden on self-consciousness which represent a central impairment in ADRD. The self-consciousness questionnaire (SCQ), validated for its assessment at mild to moderate phases of the disease, explores the dimensions of personal identity, awareness of cognitive deficiencies, self-assessment of affective state, awareness of body representation, prospective memory, capacity for introspection, and moral judgments.


METHODS
After having verified, by means of a preliminary study, its feasibility to the more advanced stages of the disease, this questionnaire allowed assessment of the impact of the environment by comparing, in routine care, patients hospitalized in a cognitive-behavioral unit who solely remain indoors with others who use the Art, Memory and Life healing garden.


RESULTS
A significant decrease in SCQ due to an increase in anosognosia during hospitalization was observed in the group that remained indoors. For the group using the garden, a positive effect on overall SCQ score was observed, as a result of a significant improvement in body representation as the driving parameter.


CONCLUSION
Factors that are grounded in the hypotheses that spearheaded its conception, such as sensory enrichment, familiarity, contact with nature, scaffolding role for cognitive functions, supportive effect for social interactions, and the "Nancy hypotheses of beauty", thus contribute to their validation.