00:00According to a psychological study from 2012, most of us can recognize the face of someone we know in under a half second, but not everyone.
00:10Some people have a condition known as developmental prosopagnosia, where they either can't recognize familiar faces as quickly, or the faces of strangers look remarkably familiar.
00:19It was long believed to be a relatively rare occurrence, but now a new Harvard study suggests it might be more common than previously thought.
00:26Looking at 3,100 participants in the U.S., researchers found that not only does face blindness affect some 3% of people, but the condition isn't as simple as you have it or you don't.
00:35It's likely more of a spectrum, with the researchers writing, quote,
00:38First, the majority of researchers have used overly strict diagnostic criteria, and many individuals with significant face recognition problems in daily life have been wrongly told they do not have prosopagnosia.
00:48If this experiment's results are extrapolated to the entire U.S. population, that means around 10 million Americans have difficulty with recognizing faces, not a small number, and other researchers seem to agree.
00:59A 2022 study also suggested relaxing the criteria for the diagnosis of face blindness, suggesting that identifying more people with this difficulty could lead to better cognitive training and treatments.
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