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Person

Ronald Rensink

A man with short gray hair and glasses wears a light beige jacket over a dark shirt, set against a neutral background.

Canadian cognitive scientist at the University of British Columbia whose flicker-paradigm experiments in the mid-1990s established change blindness as a laboratory phenomenon. By inserting a blank frame between two slightly different photographs, Rensink showed that observers could stare at alternating images for tens of seconds without detecting changes that were, once pointed out, impossible to miss.

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