Reaction Time Variation May Be a Marker That Predicts Mortality in Old Age Summary: According to a PLOS ONE study, a person’s intraindividual reaction time variability may be an independent predictor of mortality. Source: PLOS. A common indicator of neurobiological disturbance among the elderly may also be associated with mortality, according to a study publishedContinue reading “Reaction Time Variation May Be a Marker That Predicts Mortality in Old Age”