“…Sapir 7 suggests that psychogenic dysphonia should be suspected when three criteria are satisfied: symptom incongruity (ie, the dysphonia is physiologically incongruent with the existing disease, internally inconsistent, and incongruent with other speech and language findings); symptom reversibility (ie, the voice completely returns to normal state with short-term voice therapy or psychotherapy); and symptom psychogenicity (ie, the dysphonia occurs in logical linkage at the time of onset, course, and severity to an identifiable psychological stimulus). 7 The second is laryngeal focal dystonia, that is, adductor spasmodic dysphonia, which is characterized by action-induced, task-specific hyperadduction of the vocal folds. 1 Various techniques have been suggested to differentiate this neurogenic condition from MTD, for example, acoustic voice analyses.…”