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Personality Changes During the Transition from Cognitive Health to Mild Cognitive Impairment.

Abstract：

BACKGROUND/OBJECTIVES:Behavioral problems in individuals with Alzheimer's disease (AD) impose major management challenges. Current prevention strategies are anchored to cognitive outcomes, but behavioral outcomes may provide another, clinically relevant opportunity for preemptive therapy. We sought to determine whether personality changes that predispose to behavioral disorders arise during the transition from preclinical AD to mild cognitive impairment (MCI). DESIGN:Longitudinal observational cohort study. SETTING:Academic medical center. PARTICIPANTS:Members of an apolipoprotein E (APOE) ɛ4 genetically enriched cohort of Maricopa County residents who were neuropsychiatrically healthy at entry (N = 277). Over a mean interval of 7 years, 25 who developed MCI and had the Neuroticism, Extraversion, and Openness Personality Inventory-Revised (NEO-PI-R) before and during the MCI transition epoch were compared with 252 nontransitioners also with serial NEO-PI-R administrations. INTERVENTION:Longitudinal administration of the NEO-PI-R and neuropsychological test battery. MEASUREMENTS:Change in NEO-PI-R factor scores (neuroticism, extraversion, openness, agreeableness, conscientiousness) from entry to the epoch of MCI diagnosis or an equivalent follow-up duration in nontransitioners. RESULTS:NEO-PI-R neuroticism T-scores increased significantly more in MCI transitioners than in nontransitioners (mean 2.9, 95% confidence interval (CI) = 0.9-4.9 vs 0, 95% CI = -0.7-0.7, P = .02), and openness decreased more in MCI transitioners than in nontransitioners (-4.8, 95% CI = -7.3 to -2.4 vs -1.0, 95% CI = -1.6 to -0.4, P < .001). Concurrent subclinical but statistically significant changes in behavioral scores worsened more in MCI transitioners than nontransitioners for measures of depression, somatization, irritability, anxiety, and aggressive attitude. CONCLUSION:Personality and subclinical behavioral changes begin during the transition from preclinical AD to incident MCI and qualitatively resemble the clinically manifest behavioral disorders that subsequently arise in individuals with frank dementia.

journal_name

J Am Geriatr Soc

journal_title

Journal of the American Geriatrics Society

authors

Caselli RJ,Langlais BT,Dueck AC,Henslin BR,Johnson TA,Woodruff BK,Hoffman-Snyder C,Locke DEC

doi

10.1111/jgs.15182

subject

Has Abstract

pub_date

2018-04-01 00:00:00

pages

671-678

issue

eissn

0002-8614

issn

1532-5415

journal_volume

pub_type

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Personality Changes During the Transition from Cognitive Health to Mild Cognitive Impairment.