Functional diffuse correlation spectroscopy was used during various attention-demanding motor tasks, and test whether cerebral blood flow (CBF) changes differentiate between age groups or are related to mild cognitive impairment (MCI). Sixty-nine subjects were measured during single (ST) and dual motor tasks (DT); seventeen Cognitively Healthy Younger (<65y.o.,CH-Y), sixteen Cognitively Healthy Older Adults (CH-O), fifteen subjects amnestic - MCI, single-domain (aMCI - SD) and twenty-one amnestic - MCI, multi-domain (aMCI - MD). Results show elevated CBF during cognitively demanding DT statistically different (p <0.001) from reference test. No statistical difference was observed between CH and aMCI subjects (p = 0.36).
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