Stroop Effect

The Stroop effect is the robust interference observed when participants name the ink colour of a colour word whose meaning conflicts with its ink, for example the word red printed in blue. Stroop (1935) demonstrated that word reading is an automatised process that competes with the slower, more controlled act of colour naming, producing elevated response times and errors on incongruent trials. The effect is a canonical index of inhibitory control and selective attention.

Reference: Stroop, 1935. The NeuroRank implementation holds the canonical form and scales interference via task-irrelevant stimulus density.

1. Misreading the minimap when a ping colour clashes with background terrain, forcing slower intentional parsing.
2. Team-colour swaps in tournaments that create friendly-fire hesitation because the automatised red-means-enemy mapping is broken.
3. HUD changes between games where health bars switch from red-below-half to yellow-below-half: ingrained cues conflict with new rules.

NeuroRank does not run a classic Stroop task. Instead, the composure module uses the Flanker paradigm, which targets the same underlying selective-attention and inhibitory-control construct with cleaner spatial cues that suit a gaming context.