The Stroop Task is a classic psychological experiment that examines cognitive load and selective attention.
Naming the ink color of a color word is slower and more error-prone when the color and word do not match — for example, the word BLUE written in red ink.
It measures selective attention, cognitive flexibility, and processing speed.
Click the button below to request microphone permission. Your browser will show a permission prompt.
No audio is stored or transmitted — speech is processed entirely on your device.
A colored word will appear. Say the ink color — not what the word reads.
For example, if you see:
→ say "red" (the ink color, not the word)
The task will begin immediately after. Complete as many trials as you can — there is no time limit per word.