“…The few studies that examined childhood-onset psychosis documented that the most common diagnoses in youth who experience hallucinations and/or delusions are mood, schizoaffective, and schizophrenic disorders (Chambers et al, 1982;Lohr and Birmaher, 1995;McKenna et al, 1994;Russell et al, 1989;Volkmar, 1996), although psychotic-like phenomena have been reported in anxiety, disruptive behavior, substance use disorders, and PTSD as well (Altman et al, 1997;Aug and Ables, 1971;Del Beccaro et al, 1988;Garralda, 1984aGarralda, , 1984bKaufman et al, 1997;Kotsopoulos et al, 1987;Lohr and Birmaher, 1995;McKenna et al, 1994;Rothstein, 1981;Schreier, 1998;Volkmar, 1996). One follow-up study of childhood psychotic patients found that half progressed to chronic psychosis in adulthood (Dahl, 1976).…”