Facial expressions arise from brain networks that encode slow, context-rich meaning and fast muscle control on different time scales, keeping smiles and threats socially precise.

Humans not only recognize emotions on the faces of monkeys and apes but also unconsciously mimic those expressions.

The expressions consisted of a play face, a threat display, and a neutral expression. While the participants were watching the videos, their own facial expressions were filmed using webcams. The ...

When a baby smiles at you, it’s almost impossible not to smile back. This spontaneous reaction to a facial expression is part of the back-and-forth that allows us to understand each other’s emotions ...

Researchers found that autistic and non-autistic people move their faces differently when expressing emotions like anger, happiness, and sadness. Autistic participants tended to rely on different ...