In connection with the interdisciplinary approach in psychiatry a few problems are discussed, amongst others that of the differente in meaning of the 'lotion normal in the cooperating disciplines. At the same time there is a reference to the differente in attitude to the object in the purely scientific rerearch and on the other hand in the application of it in medical treatment. There was also a reference to the difficulty in interdisciplinary research of the use and the definition of apparently corresponding (conceptions) which mostly don't in the least have the same meaning within the various reference scopes.
To avoid the above mentioned difficulties as much as possible there was pointed to the possibility of taking an analysis and operationalization of the psychiatrie diagnosis — and determination process as a starting point.