Asperger syndrome is an autistic disorder which was first described in
1944 without further acceptance in the literature over almost four de
cades. Following several publications in the '80's, the disorder becam
e more widely known. Asperger syndrome was introduced into ICD-10 and
DSM-IV as a new diagnosis in 1988 and 1994, respectively. Several auth
ors developed own criteria. Until now, some of the diagnostic criteria
of Asperger syndrome remain controversial. We present a survey and a
comparison of the criteria in the classification of DSM-IV, ICD-10 and
of other authors. Six criteria are widely accepted, but there are div
ergent opinions about the criteria ''intelligence'' and ''speech devel
opment''.