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Fighting Alzheimer's before its onset
Date:9/10/2012

Montreal, September 10, 2012 By the time older adults are diagnosed with Alzheimer's disease, the brain damage is irreparable. For now, modern medicine is able to slow the progression of the disease but is incapable of reversing it. What if there was a way to detect if someone is on the path to Alzheimer's before substantial and non-reversible brain damage sets in?

This was the question Erin K. Johns, a doctoral student in Concordia University's Department of Psychology and member of the Center for Research in Human Development (CRDH), asked when she started her research on older adults with mild cognitive impairment (MCI). These adults show slight impairments in memory, as well as in "executive functions" like attention, planning, and problem solving. While the impairments are mild, adults with MCI have a high risk of developing Alzheimer's disease.

"We wanted to help provide more reliable tools to identify people who are at increased risk for developing Alzheimer's so that they can be targeted for preventive strategies that would stop brain damage from progressing," says Johns.

The new study was published in the Journal of the International Neuropsychological Society and was funded by the Quebec Network for Research on Aging and the Canadian Institutes of Health Research. In it, Johns and her colleagues found that people with MCI are impaired in several aspects of executive functioning, the biggest being inhibitory control.

This ability is crucial for self-control: everything from resisting buying a candy bar at the checkout aisle to resisting the urge to mention the obvious weight gain in a relative you haven't seen in a while. Adults with MCI also had trouble with tests that measure the ability to plan and organize.

Johns and her colleagues found that all the adults with MCI they tested were impaired in at least one executive function and almost half performed poorly in all the executive function tests. This is in
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Contact: Clea Desjardins
clea.desjardins@concordia.ca
514-848-2424 x5068
Concordia University
Source:Eurekalert

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