Decision Speed Test

What is the Decision Speed Test?

This tool is an advanced implementation of the Eriksen Flanker Task, a gold-standard cognitive psychology assessment introduced by B.A. Eriksen and C.W. Eriksen in 1974. It measures your selective attention, inhibitory control, and information processing speed.

By forcing your brain to filter out irrelevant spatial noise (the "flanking" arrows) and focus solely on a target stimuli (the center arrow), this test evaluates how efficiently you can resolve cognitive conflict under time pressure.

Understanding Your Results

• Congruent Trials (e.g., >>>>>): The flanking arrows match the center arrow. These are typically processed the fastest because the surrounding visual noise reinforces the correct answer.
• Incongruent Trials (e.g., >><>>): The flanking arrows point in the opposite direction. Your brain must actively inhibit the urge to react to the flanks, resulting in a slower response time.
• The Flanker Effect (Δ): This is the most crucial metric. It is the difference in milliseconds between your Incongruent average and your Congruent average. A lower Flanker Effect (Δ) indicates superior inhibitory control and focus.

Real-World Applications

Why train your decision speed and selective attention? It translates directly to high-performance activities:

• Esports & Gaming: Tactical shooters (Valorant, CS2) require players to instantly identify targets amidst chaotic visual clutter (abilities, tracers, irrelevant map geometry). A low Flanker Delta means you can clear angles and identify enemies faster.
• Driving & Sports: Reacting to a brake light while ignoring a flashing billboard, or tracking a ball while ignoring defensive players moving in opposite directions.
• Deep Work Focus: The ability to suppress irrelevant stimuli is heavily tied to sustained concentration in academic and professional environments.