How does Terri respond when someone asks her to blink or squeeze a hand to indicate her reply to a question? Isn't this the method used with patients who can't talk?
In her case it doesn't apply because she can talk.
One of the drs said that she did squeeze his hand when asked but Greer ruled that there was no way to tell via the submitted video that she had actually done it. But he's never gone to see her himself. Figure that one out.