About This Test
What is Reaction Time?
Reaction Time (RT) is the interval of time between the presentation of a stimulus and the initiation of a muscular response. It is a direct measure of central nervous system processing speed.
3 Factors That Affect Reaction Time
- Age: RT naturally slows as we age due to the gradual loss of neurons and reduced myelination.
- Fatigue: Sleep deprivation significantly impairs neural transmission, slowing reflexes similar to alcohol intoxication.
- Hardware Latency: Input lag from wireless mice and 60Hz monitors can add 10-50ms to your score.
How This Test Works
This test measures Simple Reaction Time (SRT). You must respond to a single stimulus (color change) with a single response (click). It averages 5 attempts to filter out lucky guesses or distractions.