What is it, really?
Attention is not one thing: there is sustained focus on a task, filtering of distractions, and rapid search for one detail in a crowded field. What they share — the mind chooses what to process, and what to let go.
The field’s most famous measure is the "Stroop effect" (Stroop, 1935): when the word "red" is printed in green ink, naming the ink colour takes longer — because reading is automatic, and naming the colour requires suppressing it. More than fifty years of research on the effect were summarised in a comprehensive review (MacLeod, 1991).
How researchers measure it
In the lab, attention is measured with Stroop tasks, visual-search tasks (finding a specific item among distractors) and tracking tasks (following one moving object among lookalikes). The games in our attention section are built around those same tasks — "Stroop Test" is the original task itself, and "Target Tracker" and "Object Identification" are built around search and tracking.
What it looks like day to day
In daily life: reading a book with the television on, spotting your granddaughter’s face in a group photo, or following one conversation at a noisy family dinner.
About the research
The original Stroop-effect paper — the exact task our game is built on.
Stroop, J. R. (1935). Studies of interference in serial verbal reactions. Journal of Experimental Psychology.
Fifty years of Stroop research summarised — why this simple task became a classic measure of attention.
MacLeod, C. M. (1991). Half a century of research on the Stroop effect: An integrative review. Psychological Bulletin.
This page explains how researchers define and measure this ability. It is not medical advice and not a promise of training outcomes.
Games built around Attention
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