thinking cap

This week on Stuff You Should Know, Josh and I had the pleasure of talking about a couple of real oddities. Alien Hand Syndrome is a very rare disorder in which a person's hand takes on a life of its own, without the knowledge of the owner. The offending hand performs purposeful actions like tearing paper or unbuttoning a shirt. It's so rare that there are more fictional cases in movies and on TV as there are real cases. Think "Evil Dead" and "Dr. Strangelove." It's very interesting stuff that science can't fully explain and we had a lot of fun with it. Tuesday's show was about the so-called "thinking cap." This is a device that attaches to your head and sends magnetic pulses directly to the brain and has resulted in some fascinating findings.

When Allan Snyder discovered that transcranial magnetic stimulation produces strange cognitive changes, he believed he'd stumbled upon a "creativity-amplifying machine." Learn more about the real-life thinking cap in this podcast from HowStuffWorks.com.