American Psychiatrie Association (1994) Diagnostic and Statistical Manual of Mental Disorders (4th edn) . Washington, DC: APA.
Angold, A., Prendergast, M., Cox, A., et al (1995) The Child and Adolescent Psychiatric Assessment (CAPA). Psychological Medicine, 25, 739–753.
Arnold, P. D., Siegel-Bartelt, J., Cytrynbaum, C., et al (2001) Velo-cardio-facial syndrome: implications of microdeletion 22q11 for schizophrenia and mood disorders. American Journal of Medical Genetics, 105, 354–362.
Bassett, A., Chow, E. W., AbdelMalik, P., et al (2003) The schizophrenia phenotype in 22q11 deletion syndrome. American Journal of Psychiatry, 160, 1580–1586.
Cannon, M., Jones, P., Gilvarry, C., et al (1997) Premorbid social functioning in schizophrenia and bipolar disorder: similarities and differences. American Journal of Psychiatry, 154, 1544–1550.
Cosway, R., Byrne, M., Clafferty, R., et al (2000) Neuropsychological change in young people at high risk for schizophrenia: results from the first two neuropsychological assessments of the Edinburgh High-Risk Study. Psychological Medicine, 30, 1111–1121.
Crawford, J. R., Allen, K. M. & Jack, A. M. (1992) Short-forms of the UK WAIS-R: regression equations and their predictive validity in a general population sample. British Journal of Clinical Psychology, 31, 191–202.
Diduca, D. & Joseph, S. (1999) Assessing schizotypal traits in 13–18 year olds: revising the JSS. Personality and Individual Differences, 27, 673–682.
Done, D. J., Crow, T. J., Johnstone, E. C., et al (1994) Childhood antecedents of schizophrenia and affective illness: social adjustment at ages 7 and 11. BMJ, 309, 699–703.
Emerson, E. (2003) Prevalence of psychiatric disorders in children and adolescents with and without intellectual disability. Journal of Intellectual Disability Research, 47, 51–58.
Feinstein, C., Eliez, S., Blasey, C., et al (2002) Psychiatric disorders and behavioral problems in children with velocardiofacial syndrome: usefulness as phenotypic indicators of schizophrenia risk. Biological Psychiatry, 51, 312–318.
Fenton, W. S. & McGlashan, T. H. (1994) Antecedents, symptom progression, and long-term outcome of the deficit outcome in schizophrenia. American Journal of Psychiatry, 151, 351–356.
Gottesman, I. I. & Erlenmeyer-Kimling, L. (2001) Family and twin strategies as ahead start in defining prodromes and endophenotypes for hypothetical early-interventions in schizophrenia. Schizophrenia Research, 51, 93–102.
Harrison, P. J. & Owen, M. J. (2003) Genes for schizophrenia? Recent findings and their pathophysiological implications. Lancet, 361, 417–419.
Karayiorgou, M., Morris, M. A., Morrow, B., et al (1995) Schizophrenia susceptibility associated with interstitial deletions of chromosome 22q11. Proceedings of the National Academy of Sciences of the USA, 92, 7612–7616.
Kaufman, A. S., Kaufman, J. C., Balgopal, R., et al (1996) Comparison of three WISC-III short forms: weighing psychometric, clinical, and practical factors. Journal of Clinical Child Psychology, 25, 97–105.
Miller, P. M., Byrne, M., Hodges, A., et al (2002a) Childhood behaviour, psychotic symptoms and psychosis onset in young people at high risk of schizophrenia: early findings from the Edinburgh High-Risk Study. Psychological Medicine, 32, 173–179.
Miller, P. M., Lawrie, S. M., Byrne, M., et al (2002b) Self-rated schizotypal cognitions, psychotic symptoms and the onset of schizophrenia in young people at high risk of schizophrenia. Acta Psychiatrica Scandinavica, 105, 341–345.
Murphy, K. C., Jones, L. A. & Owen, M. J. (1999) High rates of schizophrenia in adults with velo-cardio-facial syndrome. Archives of General Psychiatry, 56, 940–945.
Nuechterlein, K. H., Asarnow, R. F., Subotnik, K. L., et al (2002) The structure of schizotypy: relationships between neurocognitive and personality disorder features in relatives of schizophrenic patients in the UCLA Family Study. Schizophrenia Research, 54, 121–130.
Ott, S. L., Roberts, S., Rock, D., et al (2002) Positive and negative thought disorder and psychopathology in childhood among subjects with adulthood schizophrenia. Schizophrenia Research, 58, 231–239.
Pantelis, C., Velakoulis, D., McGorry, P. D., et al (2003) Neuroanatomical abnormalities before and after onset of psychosis: across-sectional and longitudinal MRI comparison. Lancet, 361, 281–288.
Papolos, D. F., Faedda, G. L., Veit, S., et al (1996) Bipolar spectrum disorders in patients diagnosed with velo-cardio-facial syndrome: does a hemizygous deletion of chromosome 22q11 result in bipolar affective disorder?
American Journal of Psychiatry, 153, 1541–1547.
Poulton, R., Caspi, A., Moffitt, T. E., et al (2000) Children's self-reported psychotic symptoms and adult schizophreniform disorder: a 15 year longitudinal study. Archives of General Psychiatry, 57, 1053–1058.
Scambler, P. J. (2000) The 22q11 deletion syndromes. Human Molecular Genetics, 9, 2421–2426.
Swillen, A., Devriendt, K., Ghesquiere, P., et al (2001) Children with a 22q11 deletion versus children with a speech – language impairment and learning disability: behavior during primary school age. Genetic Counselling, 12, 309–317.
World Health Organization (1992) Tenth Revision of the International Classification of Diseases and Related Health Problems
. Geneva: WHO.
Yung, A. R., Phillips, L. J., Yuen, H. P., et al (2004) Risk factors for psychosis in an ultra high-risk group: psychopathology and clinical features. Schizophrenia Research, 67, 131–142.