yawning and psychopathy

Contagious yawning and psychopathy Yawning is a stereotyped behavior that, in our evolutionary history, has clear, deep roots as evidenced by its proliferation in mammals as well as many other vertebrates. It is clearly characterized by long inspiration followed by a shorter expiration. While literature concerning the pharmacology and functional anatomy of yawning is not … Continue reading “yawning and psychopathy”