(used from the DSM-IV p77 current version)
A. Qualitative impairment in social interaction, as manifested by at least two of the following:
1. Marked impairments in the use of multiple non-verbal behaviors such as eye to eye gaze, facial expressions, body postures, and gestures to regualate social interaction.
2. failure to develop peer relationships appropriate to developmental levels
3. a lack of spontaneous seeking to share enjoyment, interests , or achievments with other people (e.g. by a lack of showing or pointing out objects of interest to other people)
4. lack of social or emotional reciprocity
B. Restricted repetitive and stereotyped patterns of behavior, interests and activities as manifested by at least one of the following:
1. encompassing preoccupation with one or more stereotyped and restricted patterns of interest that is abnormal either in intensity or focus.
2. apparently inflexible adherance to specific, non functional routines or rituals
3.stereotyped and repetitive motor mannerisms (e.g. hand or finger flaping or whole body movements)
4. persistent preoccupation with parts of objects
C. The disturbance causes clinically significant impairments in social, occupational, or other important areas of functioning.
D. There is no clinically significant general delay in language (e.g. single words used by age 2 years, communicative phrases by 3 years)
E. There is no clinically significant delay in cognitive development or in the development of age appropriate self-help skills, adaptive behavior (other than social interaction) and curiosity about the environment in childhood.
F. Criteria not met for another pervasive developmental disorder or schizophrenia