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While progressive neurocognitive impairments are associated with aging and Alzheimer's disease (AD), cortical reorganization might delay difficulties in effortful word retrieval, which represent one of the earliest cognitive signs of AD. Using functional near-infrared spectroscopy (fNIRS), we investigated cortical hemodynamic responses elicited by(More)
BACKGROUND Aging processes and several vascular burden factors have been shown to increase the risk of dementia including Alzheimer's disease. While pathological alterations in dementia precede diagnosis by many years, reorganization of brain processing might temporarily delay cognitive decline. We hypothesized that in healthy elderly individuals both(More)
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