We presented a case of laryngeal nystagmus combined with myoclonus of the vocal cords
A possibly related condition was an obsessive-compulsive neurosis. The following findings were obtained by high-speed X-ray photography.
1. Rhythmical movement were observed, both in the external and internal laryngeal muscles.
2. Involuntary phonation at the time of expiration was confirmed as the cause of the abnormal sound.
