Super-recognizers never forget a face. They can catch a glimpse of their childhood friend in a rearview mirror and instantly know it's them. They help police departments and security agencies identify suspects. They also make good private detectives and unofficial investigators.
But as fascinating as their superpower is, it remains poorly understood. Until now, scientists have believed super-recognizers were so good with faces because they processed them holistically by taking a facial snapshot and memorizing it.
In a paper published in the journal Psychological Science, psychologists from UNSW Sydney and the University of Wollongong (UOW) challenged this view, proving that super-recognizers—who make up about 2 percent of society—look at faces just like all of us, but do it faster and more accurately.
UNSW researcher and study lead author James Dunn says that when super-recognizers catch a glimpse of a new face, they divide it into parts and then store these in the brain as composite images.
“They are still able to recognize faces better than others even when they can only see smaller regions at a time. This suggests that they can piece together an overall impression from smaller chunks, rather than from a holistic impression taken in a single glance,” Dunn said.
For the purpose of the study, co-lead author Sebastien Miellet, UOW researcher and an expert in active vision, used eye-tracking technology to analyze how super-recognizers scan and process faces and their parts.
“With much precision, we can see not only where people look but also which bits of visual information they use,” Miellet said.
When studying super-recognizers’ visual processing patterns, Dunn and Miellet realized that contrary to typical recognizers, super-recognizers focused less on the eye region and distributed their gaze more evenly than typical viewers, extracting information from other facial features, particularly when learning faces.
“So the advantage of super-recognizers is their ability to pick up highly distinctive visual information and put all the pieces of a face together like a puzzle, quickly and accurately,” Miellet said.
UNSW and UOW researchers will continue to study the super-recognizer population. Miellet believes that one hypothesis is that super-recognizers’ superpower may stem from a particular curiosity and behavioral interest in other people. Potentially, super-recognizers may also be more empathetic than most of us.
“In the next stages of our study, we'll equip some super-recognizers and typical viewers with a portable eye tracker and release them onto the streets to observe, not in the lab but in real life, how they interact with the world,” Miellet said.
Republished courtesy of Association for Psychological Science.