They could be used to study conditions like Parkinson's disease and Lou Gehrig's disease.

VOA: special.2009.06.23

And other patients suffer from Lou Gehrig's diseases and so forth are not even able to speak at all, and not able to perhaps blink their eyes to communicate.

其他患有葛雷克氏症的人等等,甚至一点都不能说话，不能通过眨眼的方式与人交流。

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