Reaction times and performance variability in normal aging, mild cognitive impairment, and Alzheimer's disease

• Published in: Journal of geriatric psychiatry and neurology Vol. 21; no. 3; p. 204
• Main Authors: Gorus, Ellen, De Raedt, Rudi, Lambert, Margareta, Lemper, Jean-Claude, Mets, Tony
• Format: Journal Article
• Language: English
• Published: United States 01.09.2008
• Subjects: Activities of Daily Living - classification; Activities of Daily Living - psychology; Aged; Aged, 80 and over; Alzheimer Disease - diagnosis; Alzheimer Disease - psychology; Amnesia - diagnosis; Amnesia - psychology; Cognition Disorders - diagnosis; Cognition Disorders - psychology; Decision Making; Female; Humans; Individuality; Male; Mental Status Schedule - statistics & numerical data; Psychometrics; Psychomotor Performance; Reaction Time; Reference Values

This study evaluated whether reaction times (RT) and performance variability are potential markers for the early detection of Alzheimer's disease (AD). Cognitively healthy elderly (n = 218), persons with amnestic MCI (a-MCI) (n = 29) and patients with AD (n = 50) were examined with RT tasks wit...