Alien Hand Syndrome (AHS) is a rare neurological disorder distinguished by involuntary, seemingly purposeful limb movements coupled with a sensation of estrangement from the affected limb. This ...

My friend and Huffington Post Blogger Dave Pruett is a mathematician turned philosopher who writes about the interface between science and what might be termed more mystical or parapsychological ...

Imagine sitting at home on your couch when one of your hands begins to move of its own accord — and you’re powerless to stop it. That’s what happened to one unidentified 77-year-old woman, whom ...

Credit: Getty Images Some rare psychological disorders may occur so infrequently that most mental health professionals might never encounter them. Approximately 1 of every 5 adults in the United ...