From the film, Ramachandran's patient couldn't recognize his mom visually but recognized her by phone. which shows he has ability to identify faces by other sense, hearing voice. However, maybe we should not trust what we see and listen. That's the information of what brain remapped. our brain is logical and smart than what we've thought about.
this is the website which has more cases- conditions caused by brain damage, and information about visual recognition, like motion blindness.