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Selective forgetting of self-threatening statements: Mnemic neglect for dementia information in people with mild dementia

Cheston, Richard; Dodd, Emily; Christopher, Gary; Jones, Charlie; Wildschut, Tim; Sedikides, Constantine

Authors

Emily Dodd Emily3.Dodd@uwe.ac.uk
Research Associate in Trial Co-ordinator

Charlie Jones

Tim Wildschut

Constantine Sedikides



Abstract

© 2018 The Authors. International Journal of Geriatric Psychiatry Published by John Wiley & Sons Ltd. Objective: We tested whether people with dementia manifest selective forgetting for self-threatening information, the mnemic neglect effect (MNE). This selective forgetting is observed among healthy adults in the recall, but not the recognition, of self-threatening feedback. Methods: Sixty-four statements about dementia were rated for their level of negativity by 280 staff and students at University of the West of England. The 12 statements rated as most negative and the 12 statements rated as least negative were then read to 62 people with dementia. Participants were randomized to 1 of 2 conditions with the statements referring either to self or to another person. High-negativity and self-referent statements had strong threat potential. Participants recalled the statements and then completed a recognition task, which consisted of the 24 previously read statements and 24 new statements. Results: Participants manifested the MNE: They recalled fewer high-negativity (compared with low-negativity) statements, but only when these referred to the self rather than another person. This pattern occurred independently of levels of depression or anxiety. Participants also made more self-protective intrusion errors when the statements referred to the self than another person. Participants did not differ in their recognition of statements. Conclusion: The MNE occurs among people with dementia. The selective forgetting of highly negative, self-referent statements serves to protect the self against the threat that dementia represents. Given the similarities between the MNE and the clinical phenomenon of repression, the findings may mark psychological processes that are implicated in the acceptance (or lack thereof) of a dementia diagnosis.

Journal Article Type Article
Publication Date Aug 1, 2018
Journal International Journal of Geriatric Psychiatry
Print ISSN 0885-6230
Electronic ISSN 1099-1166
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 33
Issue 8
Pages 1065-1073
APA6 Citation Cheston, R., Dodd, E., Christopher, G., Jones, C., Wildschut, T., & Sedikides, C. (2018). Selective forgetting of self-threatening statements: Mnemic neglect for dementia information in people with mild dementia. International Journal of Geriatric Psychiatry, 33(8), 1065-1073. https://doi.org/10.1002/gps.4894
DOI https://doi.org/10.1002/gps.4894
Keywords dementia, Alzheimer’s disease, self-concept, memory, awareness, threat
Publisher URL https://doi.org/10.1002/gps.4894
Additional Information Corporate Creators : UWE, Bristol Dementia Well-being service, Centre for Research on Self and Identity, University of Southampton

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