Click Anywhere to Start
When the red screen turns bright green, click as fast as humanly possible!
Tier 1 Professional Esports athletes. S-Rank nervous system response.
Elite competitive FPS gamers (Valorant Radiant / CS2 Faceit Level 10).
Above average human speed. Excellent hand-eye coordination.
Standard average for healthy adults using standard 60Hz office hardware.
Zero Mechanical Debounce: Razer Huntsman V3 Pro
Traditional mechanical switches introduce 5ms to 15ms of artificial contact bounce delay. The Razer Huntsman V3 Pro features 2nd-Gen Analog Optical Switches with 0.1mm Rapid Trigger, instantaneous light-beam actuation, and zero physical debounce delay.
The Biology of Human Reaction Time: Sight vs Sound
Reaction time is the total duration required for your sensory organs to detect an external stimulus, transmit that signal through peripheral nervous pathways to the brain's sensory cortex, make an executive motor decision in the motor cortex, and send an electrical discharge down the spinal cord to contract the finger muscles.
Why We React to Sound Faster than Sight
Across thousands of clinical human trials, auditory reaction time is consistently 30 to 50 milliseconds faster than visual reaction time:
- Auditory Pathway (8ms to 10ms): Sound waves physically move the ear's tympanic membrane and fluid within the cochlea, directly depolarizing hair cells into electrical nerve spikes almost instantaneously.
- Visual Pathway (20ms to 40ms): Photons entering the pupil must be absorbed by rhodopsin photopigments in retinal rods and cones, initiating an intracellular biochemical signal transduction cascade before generating an action potential along the optic nerve.
❓ Frequently Asked Questions (FAQ)
Can human reaction time be trained?
Yes. While base neural transmission speed is genetically influenced, practice improves anticipation, reduces cognitive decision friction, and optimizes motor muscle priming, typically lowering reaction times by 20ms to 40ms over consistent training.
Why does 240Hz feel faster than 60Hz?
A 60Hz screen refreshes once every 16.7 milliseconds. If a stimulus appears right after a refresh, you must wait up to 16ms before the green frame physically renders. A 240Hz monitor displays new frames every 4.1ms, delivering visual information to your retina 12ms faster.
Does caffeine improve reaction speed?
Moderate caffeine consumption (100mg - 200mg) blocks adenosine receptors in the brain, increasing central nervous system alertness and improving reaction time by 10ms to 25ms.
What is a false start?
A false start occurs when you click before the stimulus triggers (e.g. while the pad is still red). The test resets and forces you to wait for the genuine signal to prevent guessing.
⚡ Next Recommended Tests
8000Hz Polling Rate
Measure real USB report rate & microsecond intervals.
Keyboard Polling Rate
Measure USB interrupt frequency & scan intervals.
Audio Delay & Latency
Measure millisecond audio-visual desync delay.