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Unresponsive Patients Activate a Noninvasive Interface

The findings support further communication research.

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

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In a in on 22, of 41 an .

The an . It an , not or of a .

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

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Read and understand · 1/2Which conclusion matches the reported proportion?

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Success was reported in a subset. Approximately one third is a subset.

Clue: In a study published in Brain on October 22, approximately one third of 41 clinically unresponsive patients controlled an auditory signal through EEG activity.

Read and understand · 2/2Which result was not established?

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Established two-way communication. The final sentence states the limitation.

Clue: The technique used scalp electrodes rather than an implant. It remains an initial demonstration, not established two-way communication or evidence of a cure.

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Distinguish a proof of concept from established two-way communication.

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

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