Adam Wilson posted two messages on Twitter on April 15. The first one, "GO BADGERS," might have been sent by any University of Wisconsin-Madison student cheering for the school team.
The brain-computer interface allows people to compose a tweet by focusing on the desired letter.
His second post, 20 minutes later, was a little more unusual: "SPELLING WITH MY BRAIN."
Wilson, a doctoral student in biomedical engineering, was confirming an announcement he had made two weeks earlier -- his lab had developed a way to post messages on Twitter using electrical impulses generated by thought.
That's right, no keyboards, just a red cap fitted with electrodes that monitor brain activity, hooked up to a computer flashing letters on a screen. Wilson sent the messages by concentrating on the letters he wanted to "type," then focusing on the word "twit" at the bottom of the screen to post the message.
04-24-2009, 10:37 AM
Post with your brain
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