[History of scientific research films in neurology in germany 1895-1929].

Based on a systematic journal survey, an account is given of the history of research films in neurology and psychiatry in Germany in the era of the silent film 1895-1929. In 1897, Paul Schuster of Berlin was the first who filmed patients with a variety of movement disorders. Since 1927, Otto Löwenstein of Bonn developed the method of pupillography which was based on single-frame analysis and allowed quantitative evaluation of pupillary responses. Film recordings of epileptic fits proved to be of value in the scientific study of epilepsy. The few films copies that have survived the passage of time are valuable documents of medical history.