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Concept

Change blindness

Two individuals stand facing each other on a foggy street, with one person holding a briefcase and the other carrying a backpack, illustrating the concept of change blindness where subtle differences might go unnoticed.

The failure to notice large changes between two views of a scene separated by a brief interruption — a blink, a saccade, a flicker, a cut in a film. In classic demonstrations, an experimenter stops a passer-by to ask directions, is briefly hidden by people carrying a door, and is swapped for a different person; many passers-by carry on the conversation without registering the switch. A cousin of inattentional blindness.

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