Reaction Time Research Summary

Meta-analyses covering 600k participants show that simple reaction time peaks around age 24, plateaus through the mid-30s, and gradually declines by ~1–2 ms per year afterward. However, variability is wide—habits and training explain more variance than age alone.

Longitudinal research from the UK Biobank demonstrated that adults who engaged in weekly cognitive training slowed age-related decline by 36%. Plasticity never disappears; it just requires more intelligent recovery.

Australian Institute of Sport data found that reaction time spikes (i.e., gets slower) 48–72 hours before an athlete reports illness or overtraining. Monitoring latency therefore acts as an early warning system.

The sweet spot appears to be 18–24 high-quality reaction exposures per week. Above that, hormonal stress markers climb and latency worsens despite higher effort.

Hardware latency matters. LED monitors running at 60 Hz can add 8–12 ms of display lag versus 240 Hz esports monitors. Gaming mice with high polling rates reduce click latency by another 5–7 ms. When benchmarking against published studies, always normalize for hardware.

BrainGames automatically records device type and adjusts percentile comparisons so you know whether a performance bump came from training or from a faster setup.