title: Treasured object use--a cognitive and developmental marker.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002657:Child Development; D002659:Child Development Disorders, Pervasive / Q000523:psychology*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000523:psychology*; D008297:Male; D009769:Object Attachment