Dr. Kohn. Cyclothymia. La cyclothymic. 1909

The content of the author's monograph is a description of a special state of mind, characterized by its periodicity. According to his observations, there is a special psychopathic organization that manifests itself in mood disorders. These disorders are intermittent and circulatory, indicating their instability. This will be in the true sense of the cyclotypic organization. It manifests itself mainly on hereditary soil. Its manifestations begin in adolescence and have different degrees: mild, moderate and strong. A mild degree is expressed only by an increase in the normal state.