Pervasive developmental disorder Create Talk0 Category page This page needs content. You can help by adding a sentence or a photo! Add to this page! “"Pathological Demand Avoidance Syndrome is a pervasive developmental disorder related to, but... Pathological Demand Avoidance Pages in category "Pervasive developmental disorder" This category contains only the following page. P Pathological Demand Avoidance Retrieved from "http://psychology.wikia.com/wiki/Category:Pervasive_developmental_disorder"