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Computer Input by Thought

After my tirade against the computer keyboard, I had it in mind to write about other computer input devices. However, in the case of the tablet PC, Dr. Bill Crounse has already done a good job on the Healthblog here. Nontheless, there is still some scope left.

So let's begin at the top: what about input by thought? In Scientific American Mind: Train Your Brain mental exercises with neurofeedback may ease the symptoms of attention-deficit disorder and epilepsy. A child manipulates a computer-generated jet by increasing the potential of certain brain waves.

Another SciAm article Thinking Out Loud describes how patients unable to speak of gesture can communicate by controlling a cursor through a brain-computer interface by manipulating their brain waves.

From rattling the plastics to racking our brains?

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