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ATTENTION LAB

Stroop effect: choose the ink, not the word

The word says one thing; its ink shows another. Hold the rule, choose your answer and observe how reading habits affect your pace.

Three ways to explore the effect

01 / How to practise

One cue takes priority over habit

Read the rule above the stimulus before answering. In the main mode, name the ink color even when the word names another color.

  1. Choose a rule and round duration. Ink is the main mode; reading and switching change the task.

  2. Press Start. Choose one of four colors using the cue above the word.

  3. Each response brings a new stimulus. An error also ends the current trial.

  4. Wait for the timer to end, then review accuracy, points and correct-response times.

02 / STROOP

Where does the conflict come from?

Reading a familiar word can compete with identifying its ink color. This task changes the relationship between the word, ink and response rule. A higher score reflects practice under these conditions; it does not by itself establish higher IQ or better attention across everyday tasks.

BrainApps science and methodology ↗

Before your next round

What counts as a correct answer?

In ink mode, choose the ink color; in reading mode, the word’s meaning. Switching mode shows the current rule above every stimulus.

Why include matching trials?

Comparing matching and conflicting combinations helps you observe a difference within one round. Conditions are shuffled in blocks of eight stimuli.

What does the time difference mean?

The median conflicting response minus the median matching response. In a short round it can fluctuate or even be negative; it is not a diagnosis or a standard score.

What happens if I leave the page?

An active round is interrupted and is not added to history. Completed rounds remain in this browser’s local storage.

Do I need an account?

Not for this trainer. An account provides a separate BrainApps workout profile; this page keeps its history in your browser.

Explore attention with BrainApps

Discover how BrainApps uses cognitive tasks and find attention among the skills in our skill tree.

BRAINAPPS

Continue with BrainApps

Explore the BrainApps game versions of the Stroop task.

Stroop Task ↗Stroop Revolution ↗Stroop Challenge Reloaded ↗

BRAINAPPS SCIENCE

Explore other scientific tasks

Switch the type of challenge: investigate memory, interference and flexible thinking.

All scientific theories ↗

Build a regular practice

Repeat under the same conditions or try a different mode. Compare accuracy and pace together, not just your points.