Completely 'locked-in' patients can communicate
Patients with absolutely no control over their body have finally been able to communicate, say scientists.
A brain-computer interface was used to read the thoughts of patients to answer basic yes-or-no questions.
One man was able to repeatedly refuse permission for his daughter to get married.
The study on four patients in Switzerland - published in PLOS Biology - also showed they were happy despite the effects of being "locked-in".
The patients all had advanced forms of amyotrophic lateral sclerosis, in which the brain loses the ability to control muscles.
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