ulatuslik arenguhäire, mida iseloomustavad au­tis­mitaolised sotsiaalse suhtlemise häired, huviobjektide ja tegevuse piiratus ning tegevuse skemaatiline kordumine, kuid mille korral ei esine kõne või vaimse arengu mahajäämust, a disorder of uncertain nosological validity, characterized by the same type of qualitative abnormalities of reciprocal social interaction that typify autism, together with a restricted, stereotyped, repetitive repertoire of interests and activities, an autism spectrum disorder that is characterized by impaired social interaction, by repetitive patterns of behavior and restricted interests, by normal language and cognitive development but poor conversational skills and difficulty with nonverbal communication, and often by above average performance in a narrow field against a general background of impaired functioning