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Covert versus overt self-recognition in late stage Alzheimer's disease
Published online by Cambridge University Press: 01 March 1997
Abstract
Some persons with Alzheimer's disease (AD) lose the ability to recognize themselves, as when they cannot overtly recognize their reflection in a mirror. There is evidence, however, that covert or unconscious self-recognition might be displayed in such individuals. In this study, 3 persons with AD lacking the ability to overtly self-recognize demonstrated multiple instances of unconscious or covert self-recognition. A variety of interventions, inspired by research with prosopagnosics, was implemented to remediate this loss. Interventions enabled all participants to exhibit overt self-recognition, though each did so with the aid of a different intervention. In addition, successful overt self-recognition required a verbal probe and was entirely intervention-dependent: When the intervention was removed, overt self-recognition was lost. Results support a dissociation between explicit–declarative versus implicit–nondeclarative memory systems, and extends this dissociation into the realm of self-recognition in AD. (JINS, 1997, 3, 195–198.)
Keywords
- Type
- CASE STUDY
- Information
- Journal of the International Neuropsychological Society , Volume 3 , Issue 2 , March 1997 , pp. 195 - 198
- Copyright
- © 1997 The International Neuropsychological Society