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 responding to colour when a word disagrees with it — a word's meaning and its ink colour are sometimes the same and sometimes different, and you respond to the ink colour.

What you'll do

Across a series of short trials, you respond to the ink colour you see. Some trials match (the word and colour agree); some don't. A Stop button is always visible.

What it records

Neutral timing measurements:

  • Timing difference — the difference in response time between matching and mismatching trials, in milliseconds (ms).
  • Error rate — the proportion of incorrect responses.

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 attention is good, poor, 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 the Stroop Test as a clinical instrument or the Stroop Color and Word Test. 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.