[Kraepelin's basic nosologic postulates. An attempt at a critical evaluation of the later works of Kraepelin]

This study discusses three important papers by Emil Kraepelin, published between 1918 and 1920. Kraepelin supports--in accordance with his teacher Wilhelm Wundt--the view of psychophysical parallelism as a basic principle of dealing with the questions of mental illness. Kraepelin is often called a nosologist; but one must not forget that Kraepelins nosology was not a static one, nor did he vote in favor of any kind of dogmatism. Only when Kraepelin's basic positions are reflected in a differentiated way, his enormous influence on very different parts of psychiatry as science can be understood.