Disease, Human Norm, and Human Diversity in Neuropsychiatry

ifferent meanings of the concept of normality will be presented. I will briefly discuss if or not there is a generally accepted concept of what a disease is. Then I will address the definition of what a psychiatric disorder is. Based on the example of autism, I will finally illustrate that phenomenologically identical medical syndromes can be regarded as well as a norm variant, as a psychological disorder, and as a psychiatric disease. This comprehensive perspective on the diverse phenomena of body and mental functioning illustrates that many if not most of the present psychiatric diagnoses cannot be considered as names of diseases, but as umbrella terms for a wide range of differently caused mental phenomena.