The relationship between trauma and beliefs about hearing voices: A study of psychiatric and non-psychiatric voice hearers. Psychological Medicine, 38, 1409-17. Anthony, E.J. (1987) Children at risk for psychosis growing up successfully, in The Invulnerable Child (eds E.J. Anthony and B.J. Cohler), The Guildford Press, New York. pp. 147-84. Applebaum, P.S., Clark Robbins, P. and Roth, L.H. (1999)