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Patients Change a Sound With Brain Signals

The test did not require a brain implant.

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Health news editorial illustration for Brain Signals Let Some Unresponsive Patients Control a Sound

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41 with not . in to a .

on the the . This is an , not a .

Source: Columbia University Irving Medical Center; Brain, 2026-10-22.

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Read and understand · 1/2Did every patient control the sound?

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No, about one in three did. One in three is not everyone.

Clue: Columbia researchers tested 41 patients with serious brain injuries who could not respond normally. About one in three learned to change a beeping sound using brain signals.

Read and understand · 2/2Where were the recording wires?

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On the head. The text places the wires on the head.

Clue: Wires on the head recorded the signals. This is an early step towards communication, not a cure.

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Describe one result and one thing this test does not prove.

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Some patients controlled sound; this does not establish ordinary conversation or a cure.

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