National Post Life & Wellness

There’s a dancing gorilla in this CT scan — and 80% of the radiologists asked didn’t spot it
The image above has a dancing gorilla in it, but 20 out of 24 radiologists couldn’t see it in a psychological study administered by Brigham and Women’s hospital. The study, which appears in this month’s Psychological Science, tested the eyesight of 24 radiologists with the best credentials.

These radiologists were asked to look at a five typical lung cancer screenings — four of which were gorilla-free — and in the stack of screenings from the fifth patient was the dancing gorilla, waving his arms in the top right hand corner of the scan. The radiologists in the study ran their eyes over the scan four times on average. (Trafton Drew/Brigham & Women’s Hospital, Harvard Medical School)f