The point of the Neurological research is ultimately about usefulness, not truthfulness.  These scientists are trying to intervene, manipulate, control, and change.  It is superfluous to claim that the Neurological research is a true vocabulary.  It is useful, like a hammer, a tool that humans use to interact with experiences that people have.  And by the way, that experience that she had that we call a stroke, was experienced, described, and observable—unlike the unobservable and undesccribable lions and giraffes.