Highly task‐specific oromandibular dystonia in a telephone operator

Video S1. The patient is reading some sentences according to a speech-language pathologist (H.K)’s instructions. When speaking /ae/ and /ça/, the patient finds it difficult to open her mouth in full and bit her teeth together. Video S2. The patient is singing a traditional Korean folk song, ‘Arirang’. She does not have any problem with pronunciation. Video S3. Tongue depressor in the patient’s mouth makes her speak correctly when producing /ça/. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.