Everyday functioning in mild cognitive impairment and its relationship with executive cognition.

Abstract:

OBJECTIVE:Elderly persons with mild cognitive impairment (MCI) are at increased risk of dementia and functional impairments. The present study investigated the contribution of three domains of executive cognition to everyday functioning among persons with MCI. METHODS:124 MCI patients and 68 cognitively normal elderly participants were administered a cognitive screening battery. These tests were used to divide patients into four subgroups (amnestic single domain, amnestic multiple domain, non-amnestic single domain, and non-amnestic multiple domain). Subjects were then administered 18 executive function tests that assess planning/problem-solving, working memory, and judgment. Performance of everyday activities and everyday cognition was rated with two informant-reported measures. RESULTS:All MCI subtypes had more difficulties in everyday activities than cognitively normal elderly participants. Multiple domain MCI patients had more functional impairments than single domain MCI patients. Contrary to our expectations, only one executive function component, working memory, contributed significantly to functional status after controlling for demographic, health-related and other cognitive factors. CONCLUSIONS:Functional abilities are compromised in all MCI subtypes. Working memory may be associated with functional impairments, but general cognitive measures account for more unique variance.

authors

Aretouli E,Brandt J

doi

10.1002/gps.2325

subject

Has Abstract

pub_date

2010-03-01 00:00:00

pages

224-33

issue

3

eissn

0885-6230

issn

1099-1166

journal_volume

25

pub_type

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