Reaction time
You tap when a signal appears; the task records how quickly you respond as a neutral measurement to keep and share, never a score or a result.
Experimental check-in task — not a cleared or approved medical device. This task records neutral measurements for you to keep and share. It does not score you, does not say what any number means, and does not diagnose. Only a clinician can interpret it.
What this task looks at
This task looks at how quickly you respond — you tap when a target appears (and, in a second version, tap the matching side). It records the time between the signal and your tap.
What you'll do
Two short activities: tap when the target appears, and tap the matching side when it does. A Stop button is always visible.
What it records
Neutral timing measurements from your responses:
- Median response time — the typical time between signal and tap, in milliseconds (ms).
- Response-time variability — how consistent your responses were.
- Error count — the number of mismatched taps (a count).
Each is shown with its units and the method version used, plus a short note on what the task looked at. These describe timing only.
What it does not do
It does not tell you whether your reactions are fast, slow, normal, or a sign of anything. It records timing numbers; your clinician interprets them.
Not the same as
This is an original, own-authored task. It is not and is not equivalent to any clinical cognitive battery or CANTAB reaction-time tasks. This task does not reproduce them.
Experimental. Not a cleared or approved medical device. Records neutral measurements only — no diagnosis, no interpretation.
See all the check-in tasks
Each task records one kind of neutral measurement — for reflection and conversation with a clinician, never a diagnosis.