Time 00:00.0
Errors 0
Choose a test to begin. Trails A: Tap/click numbers in order 1 → 25. Trails B: Alternate numbers and letters: 1 → A → 2 → B → … → 13 → L.

Tip: Timer starts on your first correct click. Wrong taps count as errors and briefly flash red.
Disclaimer: This is an educational self‑test and not a clinical assessment or diagnosis.