Mind over mouse: Researchers demonstrate thought-controlled cursor

It is a commonly held myth that much of the effectiveness of communication is determined by nonverbal cues, but try telling that to someone who has lost the power of speech due to brain injury or damage to their vocal cords or airway. In a move that could help restore communication for in this situation, researchers at the Washington University School of Medicine in St. Louis have successfully used regions of the brain that control speech to “talk” to a computer through the implantation of a temporary surgical implant. The patients were able to manipulate a cursor on a computer screen simply by saying or thinking of a particular sound.

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