Researchers using 15O-PET have discovered that patients with Alzheimer's disease relied on additional parts of their brains to match the performance of control subjects in a cognitive study. "Patients with AD showed greater activation in the fusiform gyrus and inferior frontal gyrus, whereas controls engaged the middle frontal gyrus, suggesting that patients with AD utilized additional posterior neural resources," researchers wrote in Neurology. These strategies may be used by patients with Alzheimer's as a functional coping mechanism, researchers said.

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