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Ascending Digits Task as a Measure of Executive Function in Geriatric Depression

Received October 13, 2003; revised May 21, 2004; accepted August 30 2004. From the Department of Psychiatry and Behavioral Sciences, Duke University Medical Center. Address correspondence to Dr. Steffens, Associate Professor of Psychiatry and Medicine Head, Division of Geriatric Psychiatry Duke University Medical Center Box 3903 Durham, NC; 27710 steff001{at}mc.duke.edu (E-mail).

ABSTRACT

The authors hypothesized that older depressed patients would perform more poorly on the Ascending Digits Task (ADT) when matched against a nondepressed elderly comparison group. In a novel measure, the ADT, 129 older depressives scored more poorly than 129 comparison subjects in bivariate analyses and models controlling for demographic variables. The ADT may be a good measure of executive function in older adults.

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