Response inhibition
Response Conflict
A timed reaction drill that trains response inhibition and selective attention: act on the relevant feature of each stimulus while ignoring a conflicting one. Two classic paradigms, the Flanker task and the Simon task, both staples of trading-firm cognitive assessments.
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1 min10 min
Performance
This modehighest score / min
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attempts
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Track your best scores and watch your accuracy climb across every session.
Sign up →Frequently asked questions
What is the Response Conflict Game?
The Response Conflict Game measures response inhibition and selective attention, how well you can act on the relevant feature of a stimulus while ignoring a conflicting one. It bundles two classic paradigms used in trading-firm cognitive assessments: the Flanker task and the Simon task.
What's the difference between Flanker and Simon mode?
Flanker mode pairs two letters, one tied to each side, and shows a row of them; you respond to the central target letter, ignoring the flanking distractors. Simon mode pairs two shapes, one tied to each side, and shows one of them on the left or right; you answer the shape's side regardless of where it appears. Simon mode is available with a premium subscription.
How do I answer?
On desktop, use the left arrow and right arrow keys. On mobile, tap the left and right buttons. In Flanker mode the central letter decides the side; in Simon mode the shape decides the side. You score +1 for each correct answer and lose 1 point for each mistake.
How long is a session?
You set the session length with the timer slider, anywhere from 1 to 10 minutes (1 minute is a good default). Answer as many trials correctly as you can before the timer runs out. Both speed and accuracy matter, so stay accurate rather than rushing.
How should I train?
Short, frequent sessions beat occasional long ones. Train a few times a week and watch your score-per-minute climb as the cost of the conflicting trials (the slowdown on incongruent stimuli) shrinks with practice.