Increased intraindividual variability in reaction time performance is associated with emerging cognitive decline in cognitively unimpaired adults.

Neuropsychology, Vol 38(2), Feb 2024, 184-197; doi:10.1037/neu0000928Objective: To investigate whether intraindividual variability (IIV) in reaction time (RT) over monthly administered cognitive tasks is increased in cognitively unimpaired older adults who are at risk...