A baseball cap that reads your mind

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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. Cred ...
The brain-computer interface consists of a baseball with six electrodes (one under the left ear) that detect the wearer’s EEG signals. In the current prototype, the system can detect brain activity that corresponds with a person’s drowsiness level. Credit: Chin-Teng Lin, et al. ©2008 IEEE.

It looks like an ordinary baseball cap. But when you put it on, the cap detects and analyzes the electroencephalogram (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.


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