Problems in adolescents and young adults with high-functioning pervasive developmental disorders (PDD) would be a topic in recent years not only in child psychiatry, but also in adult psychiatry. In campus mental health, it was also pointed out that the students with high-functioning PDD who have no diagnosis in childhood would be a clinical case because of maladjustments or psychiatric symptoms. But in clinical practice, we have much difficulty to make a diagnosis of PDD, because we can hardly find out the typical triad of PDD on account of secondary psychiatric symptoms. That's why we made a trial to use Autism-Spectrum Quotient Japanese Version: AQ-J as a screening method for diagnosis and support for the students with PDD.