Did you catch that guy’s smile? Probably. We are able to accurately recognize a smile in about 50 milliseconds (that’s a fleeting 1/20 of a second). Not only that, we can recognize a happy expression ...

Facial expressions are a key asset in our arsenal of communication methods. Without saying a word, we can alert those around us to our emotional state—ranging from elation to sorrow—simply by flexing ...

“While this study doesn’t have direct clinical impact, it supports previous observations that psychostimulants affect brain function in children with ADHD not only when they’re faced with cognitive ...