Write to Me Only With Thine Eyes - ScienceNOW: People "locked in" by paralyzing disorders such as Lou Gehrig's disease have long relied on blinks or facial twitches to build sentences one letter at a time. But they soon might be able to take advantage of a simpler, faster mode of communication, new research suggests. With the help of an old optical illusion, people can train their eyes to write and draw in cursive on a computer screen as quickly as they can write with a pen. In addition to providing a new medium for self-expression, the technique challenges traditional ideas about the limits of human vision.
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