Why You May Not Like Ted Cruz’s Face

Neurologist Richard Cytowic told Quartz that the unusual movements of Sen. Ted Cruz’s face may make him seem less sincere to the human brain than other candidates.

Said Cytowic: “The normal way a face moves is what’s called the Duchenne smile, named after the 19th century French neurologist. So the mouth goes up, the eyes narrow and the eyes crinkle at the outside, forming crows feet. Cruz doesn’t give a Duchenne smile. His mouth goes in a tight line across or else it curves down in an anti-Duchenne smile. So he doesn’t come across as sincere at all.”