Abstract
Usually clinical evaluations for the problems of patients with language disturbances due to brain damage are based on observations from linguistic and neuropsychological points of view. However, this is not sufficient grounds for understanding the language pathology of patients and managing them clinically. It is nacessary to shift or change the therapists' paradigm in order to appreciate the pathology and the mental state of the patients who have difficulties with communication.
This paper discusses that (1) this issue from the viewpoint of semiology, recognizing that “differentiation” in the language activity of human beings is useful when therapists try to understand the patients, and (2) how the relation and structure of therapy influence the rehabilitation process directly, therefore how the “roles” which therapists take on come to be important.
