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A common indicator of neurobiological disturbance among the elderly may also be associated with mortality, according to a study published August 9, 2017 in the open access journal PLOS ONE by Nicole A. Kochan at the Centre for Healthy Brain Ageing (CHeBA), UNSW Sydney.
Intraindividual reaction time variability (IIVRT), defined as an individual’s variation in reaction times when completing a single cognitive task across several trials, has been associated with mild cognitive decline, dementia and Parkinson’s disease. The authors of this study investigated whether IIVRT is also associated with mortality in old age by following a cohort of 861 adults aged 70 years to 90 years over an eight-year period.
Kochan and colleagues tested the…
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