Facial expression control starts in a very old part of the nervous system. In the brain stem sits the facial nucleus, which ...

Vision shapes behavior and, a new study by MIT neuroscientists finds, behavior and internal states shape vision. The research, published Nov. 25 in Neuron, finds in mice that via specific circuits, ...

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 ...