A baseball cap that reads your mind
http://www.physorg. com/news13015227 7.html
Published: 10:24 EST, May 16, 2008
By Lisa Zyga

The brain-computer interface consists of a baseball with six
electrodes (one under the left ear) that detect the wearers EEG
signals. In the current prototype the system can detect brain activity
that corresponds with a persons drowsiness level.

It looks like an ordinary baseball cap. But when you put it on, the
cap detects and analyzes the electroencephalogra m (EEG) signals from
your brain. It can even tell you if you're getting too sleepy when
driving based on your brain wave patterns. Similar technology could
also allow you to control home electronics such as TVs, computers, and
air conditioners, all by just thinking about them.