Mind-Reading Devices to Help the Speechless Speak

The thoughts are there, but there is no way to express them. For "locked in" patients, many with Lou Gehrig's disease, the only way to communicate tends to be through blinking in code.

But now, words can be read directly from patients' minds by attaching microelectrode grids to the surface of the brain and learning which signals mean which words, a development that will ultimately help such patients talk again.

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