Facial expression control starts in a very old part of the nervous system. In the brain stem sits the facial nucleus, which ...

When a baby smiles at you, it's almost impossible not to smile back. This spontaneous reaction to a facial expression is part ...

Every time we smile, grimace, or flash a quick look of surprise, it feels effortless, but the brain is quietly coordinating an intricate performance.

When YouTube thumbnails feature certain facial expressions such as surprise or disgust, do those videos tend to get more views? To find out, researchers at Kapwing used the AI facial recognition tool ...