A Blog by Jonathan Low

 

May 26, 2021

Zoom Out: The Brain Learns Faces Better In Person

Familiarity may breed contempt, but it also improves the brain's ability to register and remember faces. JL

Nature Magazine reports:

Face-to-face interactions beat digital ones for gaining familiarity with someone else’s face. The brain remembers faces better after an in-person meeting than after viewing faces in photos or video. The human brain has a special network devoted to remembering human faces. Volunteers who interacted with (other people) had the strongest activity, and those who’d seen television had the next strongest, suggesting that these faces were the most familiar. The brains of volunteers who’d sorted celebrity photos didn’t show much activity at all. In-person interactions boost the brain’s ability to register familiarity.
Face-to-face interactions beat digital ones for gaining familiarity with someone else’s face. 
The brain remembers faces better after an in-person meeting than after viewing faces in photos or video.

The human brain has a special network devoted to remembering human faces, but how those memories form has been a mystery. Géza Gergely Ambrus and Gyula Kovács at Friedrich Schiller University Jena in Germany and their colleagues had volunteers either sort photos of celebrities they didn’t know, watch a television show or speak in person with two laboratory members. Next, the researchers recorded the volunteers’ brain activity as they viewed photos of the celebrities, the show’s actors or the lab members.

About half a second after the volunteers saw a familiar face, their brains showed a spike in a particular activity pattern. Volunteers who had interacted with the lab members had the strongest activity, and those who’d seen the television show had the next strongest, suggesting that these faces were the most familiar. The brains of volunteers who’d sorted celebrity photos didn’t show much activity at all.

The researchers say that in-person interactions boost the brain’s ability to register familiarity.

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