Flanker Task

Identify the direction of the center arrow while ignoring the surrounding arrows. Respond as quickly and accurately as you can.

Use ← Left or → Right arrow keys, or click the buttons below.

In the flanker task, irrelevant arrows beside the target slow you down when they point the opposite way. That interference cost is a standard measure of how sharply you can focus on what matters while filtering noise.

FAQ

What is the flanker effect?: Slower or less accurate responses when surrounding stimuli conflict with the target — a sign of attentional filtering under load.
Is this a medical test?: This is a self-assessment game, not a medical diagnosis. Talk to a clinician if you have clinical concerns.

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Results

—Accuracy

—Avg RT (ms)

—Congruent avg RT (ms)

—Incongruent avg RT (ms)

—Flanker effect (ms)

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