Pupil response may help brain-damaged patients communicate.
A study suggests that, even if someone can't blink at will, their eyes can indicate a response to a question.
http://alsassistivetechnology.blogspot.com/2013/08/pupil-response-may-help-brain-damaged.html
Alisa
Alisa Brownlee, ATP
Clinical Manager, Assistive Technology Services
ALS Association, National Office and Greater Philadelphia Chapter
215-631-1877
Follow me on Twitter: @alsassistivetec
Blog: http://alsassistivetechnology.blogspot.com