New research shows facial expressions are planned by the brain before movement, not automatic emotional reactions.

Photo-Illustration by Chloe Dowling for TIME (Source Images: Klaus Vedfelt—Getty Images, Tim Robberts—Getty Images, Kelvin Murray—Getty Images, Robert Recker—Getty Images, Howard Kingsnorth—Getty ...

Parkinson’s disease affects the control of movement throughout the body. This includes the facial muscles that are used to express emotion. When the movements of the face are rigid or slow to respond, ...

Facial emotion representations expand from sensory cortex to prefrontal regions across development, suggesting that the prefrontal cortex matures with development to enable a full understanding of ...