Stages of cognitive development Create Talk0 Category page This page needs content. You can help by adding a sentence or a photo! Add to this page! “ Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual... Object permanence Pages in category "Stages of cognitive development" This category contains only the following page. O Object permanence Retrieved from "http://psychology.wikia.com/wiki/Category:Stages_of_cognitive_development"