Training Arena · beta
Snap Decision
Read the controls and intent below. The module preloads on supported layouts; only Start begins the run.
Choice response
Snap Decision — setup
Click the lit zone among 2, 4 or 8 choices.
- Finish condition
- 40 trials · 1.5-second response window each
- Input and controls
- Pointer selection required; a wide viewport is needed to distinguish choices. Pause/Resume and optional fullscreen are available during play. Aim drills also offer pointer lock.
- Read the result
- Info rate (bits/s), higher is better; speed and correctness jointly. Mode-specific points are secondary, not a universal skill grade.
Fixed-protocol benchmark. Anonymous raw telemetry is submitted automatically on completion for server validation and provisional ranking. Acceptance is not guaranteed. A paused/restarted nontracking run instead stays local-only and unranked.
Browser-observed, same-setup relative measurements; not physical latency or a guaranteed improvement in games. All Arena tasks are visual; no auditory drill.
Waiting for supported layout… No run has started.
The science, playfully
Hick–Hyman law · choice reactionThe science behind it
Reacting to one cue is a reflex; choosing between several is a decision, and choice reaction time grows with the log of the number of options (the Hick–Hyman law). Varying how many options are live exposes how much each extra choice costs you.
Reading your score
The ranked number folds speed and correctness together, so fast-but-wrong tanks it. The same trials also drive a drift-rate readout that is a coarse, sample-sensitive model estimate, not a diagnosis of decision ability.
The honest limits
This is not pure brain speed — your monitor, mouse, and the browser clock are all inside the number, not a physical confidence interval. Give it enough trials before trusting the readouts.