What is change blindness?

Change blindness is the failure to notice a significant change in a visual scene when the change occurs during a brief interruption (flicker, blink, or cut). It reveals that human attention is highly selective — we only consciously process a small part of what our eyes see.

What does the Change Blindness game train?

It trains sustained visual attention, scene perception, and attentional focus — the ability to track relevant changes in a complex visual field.

Is change blindness related to inattentional blindness?

They are related but distinct. Inattentional blindness occurs when an unexpected object is missed because attention is directed elsewhere. Change blindness occurs when a change during a scene interruption goes unnoticed even when you are actively looking.

Is Change Blindness free?

Yes, completely free with no account required.

Change Blindness · MindPlay

Correct 0Best —

How to play

1. Two nearly-identical scenes alternate rapidly with a white flash between them.

2. One shape subtly changes color between scenes.

3. Click the shape that is changing to score the round.

4. Wrong clicks show a red ring — keep trying until you find the change.

easy

4 shapes · 5 rounds · 700ms

medium

6 shapes · 6 rounds · 500ms

hard

8 shapes · 7 rounds · 400ms

All-time stats

easy

best —played 0

medium

best —played 0

hard

best —played 0

Correct 0Best —

How to play

1. Two nearly-identical scenes alternate rapidly with a white flash between them.

2. One shape subtly changes color between scenes.

3. Click the shape that is changing to score the round.

4. Wrong clicks show a red ring — keep trying until you find the change.

easy

4 shapes · 5 rounds · 700ms

medium

6 shapes · 6 rounds · 500ms

hard

8 shapes · 7 rounds · 400ms

All-time stats

easy

best —played 0

medium

best —played 0

hard

best —played 0