Stroop Test
Pick the ink color the word is drawn in โ not what the word says. We measure your average reaction time and accuracy across 30 rounds.
Tap to startStroop measures how well you suppress irrelevant information. MIKIRI measures how well you grab only what matters when there's no time. Both are the speed of the same mental filter.
Can you read a number that vanishes in 0.4s?Bonus: can you read a number shown for 0.4 seconds?
Next after this test comes split-second vision. Try one round of the real MIKIRI mechanic right here.
The real game starts at 3 digits and slow, and ends with 12 digits in a blink. Free, no signup, world ranking.
Play MIKIRI free โถ| Rating | Average reaction time | |
|---|---|---|
| S | < 650ms | Interference-resistant |
| A | 650โ800ms | Fast |
| B | 800โ950ms | Around average |
| C | 950โ1100ms | Below average |
| D | ≥ 1100ms | Warm up first |
How this test works
A color-name word (like "Red") appears drawn in a different color (like blue ink). Tap the swatch matching the ink color, not what the word says, from the four options below. This repeats 30 times.
Some rounds are "congruent" (word and ink match) and some are "incongruent" (they don't). Incongruent rounds are usually slower โ we show that gap as your interference time.
How to get better
- Don't try to "read" the word โ treat the letters as a shape and pull out only the color
- Don't memorize swatch positions from memory โ actually look each time, since the layout can vary
- Don't fear mistakes โ settle into your own pace first, then speed up gradually
Want to measure reaction or memory too?
Try our reaction time test or number memory test. MIKIRI has seven free games โ visual search (MATCH), resisting illusions (MIRAGE) โ each with a global top-100 leaderboard.
Try other tests
FAQ
- What is the Stroop effect?
- A psychological phenomenon where a mismatch between a word's meaning and its visual color briefly confuses the brain, slowing your response. Reading is so automatic that it interferes with naming the color.
- What's a normal amount of interference?
- Incongruent rounds are often 50-200ms slower than congruent ones, though this varies a lot between people and even day to day.
- Does accuracy matter too?
- Yes. Speed alone isn't the whole picture โ a fast average with low accuracy may just mean you're guessing rather than actually reading the ink color.
- Is this test free?
- Completely free, no signup. Works in any phone or desktop browser.