Reversion from mild cognitive impairment to normal cognition: False-positive error or true restoration thanks to cognitive control ability?

4Citations
Citations of this article
24Readers
Mendeley users who have this article in their library.

Abstract

Purpose: Relatively little attention has been paid to the meaning of reversion from mild cognitive impairment (MCI) to cognitively normal (CN), compared to MCI progression studies. The purpose of the study was to investigate the characteristics contributing to reversion from MCI to CN and to identify the associated factors with such reversion. Patients and methods: We retrospectively identified 200 individuals who initially diagnosed as MCI and completed the second visit from the National Research Center for Dementia (NRCD) registry in Korea. Participants underwent comprehensive clinical and neuropsychological assessments. Factors associated with reversion were examined by a independentsamples t-test, χ2 test, and logistic regression. Longitudinal change was examined by a repeated measures analysis of variance (rANOVA). Results: Based on the second assessment, 78 (39%) individuals were found to have reverted to CN (rMCI) and 118 (59%) remained with MCI (sMCI). Four (2%) progressed to Alzheimer’s disease dementia and they were excluded from further analysis. Over a wide range of socio-demographic, clinical, and neuropsychological variables, group difference was significant only in neuropsychological tests of cognitive control. Both groups showed improvement in several neuropsychological tests, implying a practice effect, but the rMCI group showed greater improvement. Conclusion: Reversion from MCI to CN might not be a false-positive error but a true recovery from cognitive impairment. Our results suggest that cognitive control ability may be a characteristic favorable for the restoration of cognitive function. Therefore, assessment of cognitive control might facilitate the development of appropriate interventions for MCI as well as prognosis evaluation.

Cite

CITATION STYLE

APA

Chung, J. Y., Yoon, H. J., Kim, H., Choi, K. Y., Lee, J. J., Lee, K. H., & Seo, E. H. (2019). Reversion from mild cognitive impairment to normal cognition: False-positive error or true restoration thanks to cognitive control ability? Neuropsychiatric Disease and Treatment, 15, 3021–3032. https://doi.org/10.2147/NDT.S223958

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free