<prompt> Which of the following is not true about the autistic specific disorder -Impaired communicationImpaired imaginationLanguage developmental delayVision problems  <response>: Ans. is d i.e., Vision problems o Autism is characterized by Impaired social interaction, impaired communication, and restricted repetitive stereotyped pattern of behavior. o Restricted repetitive stereotypes pattern of behavior is due to impaired imagination. o So, Diagnostic triad of features is : ? i Impaired social interaction ii Impaired communication iii Impaired imagination o Language development is often quite delayed. 