[Autistic children with mental handicap: differential etiologic, diagnostic, and therapy related principles]

Almost 70% of the autistic children are developmentally deviated and developmentally delayed too. There are still no sufficient diagnostical or intervation-oriented strategies recognizing this fact. Problems of diagnosis and developmental facilitation of autistic, developmental delayed children could be found in the field of unresolved questions of differential-aetiology and differential-diagnosis and of intervention-orientated assessment. This work is an attempt to develop some theoretical foundations and practical issues.