In 1862, French neurologist Guillaume Duchenne carried out an experiment. He stimulated people's facial muscles with small amounts of electricity to test which facial muscles we use for certain facial ...

Facial expressions play a fundamental role in social communication. While it is well established that others’ expressions influence our behavior—such as approaching a smiling person or avoiding an ...

A recent study published in the journal Brain Research provides evidence that people recognize facial expressions faster and ...

Cats can use hundreds of facial expressions to communicate, a new study reveals. Over the course of a year, researchers recorded a total of 276 distinct facial expressions used among a colony of 50 ...