AUTHORS: Keményová, P., Sashova Tomova, A., Vidošovičová, M., Čelárová, D., Radošinská, J., Ostatníková, D. ABSTRACT: Although the diagnosis of autism spectrum disorders is commonly established in childhood, there is a considerable portion of adults with autism spectrum disorders who are undiagnosed or obtained improper diagnosis. Adequate and precise assessment confirming the diagnosis in advanced age