During the last 20 years ethological psychiatric research has developed a working method for the systematic and quantitative recording and analysis of the nonverbal behaviour of psychiatric patients in their actual hospital environment. In this study this method was used to follow changes in the behaviour pattern of 5 depressed, hospitalized patients during their entire hospital stay. Parallel to ethological recording, patients were rated according to Hamilton twice a week. The patients who were most depressed at admission showed the greatest behavioural changes; the changes were most conspicuous in the behavioural elements representing social contact and communication. One patient who obviously developed a new depression during the observation period without this being recognized by the Hamilton rating or the clinical control, seemed to have been better described by the behaviour recording. This study shows that ethological psychiatric methods are very suitable for obtaining a better basis for the observations of the staff in the ward environment.
Five patients who had all been diagnosed as endogenously depressed at admission were rated twice a week and observed ethologically for 4 h/week during the entire hospitalization (4-11 weeks). Observations were carried out in the actual social environment of the ward. Data were analysed based on the parameters of behaviour diversity, behaviour activity, and marker elements. Depression was scored as low values of diversity and activity; improvement corresponded to higher values of these parameters. As possible markers of improvement, 8 behavioural elements have been singled out. One patient constituted a special case: at discharge she was rated as completely recovered; however, the ethological data indicated a serious aggravation. The day after discharge the patient attempted to commit suicide. It is concluded that ethological psychiatric research may be able to supplement traditional psychiatry with decisive information in the areas of diagnosis and treatment assessment.
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