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Brain test

Flanker test online: Arrow Storm

An Eriksen flanker test: go the way the purple arrow points and ignore the arrows around it.

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How it works

A row of five arrows flashes up. One of them is purple, and it can be anywhere in the row. Tap the button for the way the purple arrow points and ignore the others. Eight rounds, and a wrong button, or a tap too quick to have looked, costs 1.5 s.

What it measures

This is based on the Eriksen flanker task (1974), where arrows around the target pull your response one way or the other.

When the other arrows point the opposite way, you are measurably slower: the effort of ignoring them shows up in milliseconds.

What’s a good score?

In Reactdle, 600 ms or faster rates Sharp, up to 800 ms is Steady, and slower is Sluggish.

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About Reactdle

Arrow Storm is one of twenty tests in Reactdle, a free daily reaction game. Every day everyone gets the same five tests, one from each kind: reflex, aim, brain, timing and words.

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