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"Fractals Reveal Degradation of Behavioral Control with Aging and in Alzheimer’s Disease"

February 10, 2009

Brigham and Women's Hospital Press Release:

New research reveals previously unrecognized behavior disturbances in aging and those with Alzheimer’s disease (AD). Using nonlinear dynamic approaches, Kun Hu, PhD, Steven Shea, PhD and Frank Scheer, PhD, of Brigham and Women’s Hospital, and colleagues found that changes in physical activity during daytime display a robust fractal pattern in healthy young adults and that this pattern is significantly perturbed in elderly people and patients with AD. The perturbed fractal pattern indicates dysfunctions of the activity control network that may involve the master circadian pacemaker or suprachiasmatic nucleus (SCN). These findings are published in the Proceedings of the National Academy of Sciences.

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