What is this condition called?

Hi
My mother suffered her 3rd stroke. Now she is in bed can not move any part of her body except opening her eyes. She can breath by herself but she can not eat that is why we inserted nasogastric tube to feed her. She has been like this for more than 40 days, I feel she can hear us because one day she opened her eyes wide when I spoke a bit loud to her (actually she was like I scared her when I spoke loud). When she opens her eyes, she is not moving them left or right to follow the voice, just open them.

What is the medical term of this condition? and what do we expect next? will she be able to start eating again? talking again? moving again? she is 84 years old.

Thanks a lot.