MOTOR PRECISION

Execute fast, precise motor responses under time pressure.

The cerebellum operates at millisecond resolution. It forms predictive models of sensorimotor sequences — anticipating the sensory outcome of an action before the action completes, and correcting in advance. This is what allows a skilled pianist to play at tempo without processing each note consciously.

The basal ganglia run a parallel timing system — an internal clock that governs self-generated movement when no external cue provides the beat. When you decide to act without a signal telling you when, the basal ganglia determines the timing. The two systems cooperate: the cerebellum handles millisecond precision, the basal ganglia handles the when.

Reaction Field puts both systems under pressure simultaneously. Speed without accuracy is penalized. Accuracy without speed is penalized. The tradeoff itself is what is measured — not raw speed, not raw accuracy, but your personal operating point on the speed-accuracy curve.

Your MOTOR PRECISION is unmeasured.