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Research has demonstrated a link between decline in autobiographical memory and decline in the sense of self in Alzheimer's disease (AD). Recent work has also shown that odour is a powerful cue to alleviate decline in autobiographical memory in AD. Based on these findings, we investigated whether odour exposure improves access to self-concept in AD patients. To this end, we invited AD and control participants to make self-related statements (i.e., statements in response to the question "") after odour exposure or without odour exposure. We measured the number and the categories of self-related statements (i.e., whether these statements described the psychological, social or physical self) that were generated in each condition. Results demonstrated that both AD and control participants generated more self-statements in the odour condition than in the odor-free condition, especially psychological self-statements. This study is the first to demonstrate the positive influence of olfactory stimulation on the retrieval of self-related knowledge in AD.
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| http://dx.doi.org/10.1080/09602011.2020.1831553 | DOI Listing |
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