Stroop Test — Train Focus and Cognitive Control
Name the ink color, ignore the word.
- Reflex
- 2 min
- Medium
The Stroop task measures how well you suppress an automatic response. A color word appears in a conflicting ink color; your job is to answer with the ink, not what the word says.
Play Stroop TestHow it works
1A color word appears in conflicting ink.
2Answer with the ink color.
12 correct
3Stay accurate while the timer gets tighter.
How to play
- 1
Look at the ink
A color word appears in red, blue, green or yellow ink.
- 2
Ignore the word
Choose the ink color even when the written word names a different color.
- 3
Build a streak
Answer before time runs out. The pace rises as your correct streak grows.
What it trains
Cut the delay between seeing and acting. Incongruent color words slow responses because reading competes with naming the ink color.
- Brain area
- Anterior cingulate cortex + prefrontal cortex
- Based on
- Stroop, 1935
Leaderboard
Weekly season resets every Monday. Scores show as 5 correct.
Leaderboard
Questions
What does the Stroop test measure?
It measures selective attention and inhibitory control: the ability to suppress a strong automatic response.
Why are conflicting trials harder?
Reading is highly automatic, so your brain must inhibit the word meaning before naming the ink color.
Is a higher score better?
Yes. Your score is the number of correct responses in a 45-second run.

