According to research rounded up by The Washington Post, MIT Media Lab professor Pattie Maes and colleagues showed 24 everyday photos to 200 participants; after a break, some saw AI-altered versions with changed facial expressions, added soldiers or climate imagery, and those participants were far more likely to form false memories — and more confident in them. In other experiments, participants questioned by a generative AI chatbot after watching a crime video produced about three times as many false memories as a control group, and nearly half falsely remembered remake films that were never made. Georgetown researcher Mattea Sim's 331-participant experiment found about 45% of those given an AI summary with a wrong traffic sign detail correctly remembered the sign, versus about 84% given an accurate summary, even when told the summary was AI-generated.