One readily noticeable pathognomonic trait of autism is hand-flapping—a stereotyped motor movement that can look a bit like an attempt to accelerating the drying of nail polish. Not all with autism do ...

Hand clapping is ubiquitous behavior for humans across time and cultures, serving many different purposes: to signify approval with applause, for instance, or to keep time to music. Acousticians often ...

I’m a 31-year-old attractive single woman, and I recently went on Match.com and found a guy. Our e-mails and one phone conversation went well, and he seemed kind and was OK-looking in his picture, so ...

Clapping is a universal gesture used across cultures to celebrate, protest, worship, or perform—but a new study shows it's not just social, it's also deeply scientific. Researchers from Cornell ...