Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-27T19:26:54.740Z Has data issue: false hasContentIssue false

Identical Triplets: Non-Identical Psychosis?

Published online by Cambridge University Press:  29 January 2018

Peter McGuffin
Affiliation:
Genetics Section, Institute of Psychiatry, De Crespigny Park, London SE5 8AF
Adrianne Reveley
Affiliation:
Genetics Section, Institute of Psychiatry, De Crespigny Park, London SE5 8AF
Anthony Holland
Affiliation:
The Maudsley Hospital, Denmark Hill, London SE5 8AZ

Summary

In contrast to all previous reports of psychoses in genetically identical siblings, identical triplets aged 28 were discordant by major Kraepelinian type of psychosis. Two of them had been diagnosed schizophrenic while the third was diagnosed manic depressive. Re-evaluation of their illnesses using standardized methods and diagnosis by blind raters suggested that the discordance was not due to simple misdiagnosis or different diagnostic bias between psychiatrists. These triplets illustrate some of the shortcomings of a strictly applied Kraepelinian dichotomy and show that a genetic perspective is important in attempting to resolve the classificatory problems of atypical psychoses.

Type
Research Article
Copyright
Copyright © The Royal College of Psychiatrists 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bertelsen, A., Harvald, B. & Hauge, M. (1977) A Danish twin study of manic depressive disorders. British Journal of Psychiatry, 130, 330–51.Google Scholar
Clayton, P. J., Rodin, L. & Winokur, G. (1968) Family history studies III. Schizoaffective disorders, clinical and genetic factors including one to two year follow-up. Comprehensive Psychiatry, 9, 3149.CrossRefGoogle Scholar
Emery, A. E. H. (1976) Methodology in Medical Genetics. Edinburgh: Churchill Livingstone.Google Scholar
Fuller, J. L. & Thompson, W. R. (1978) The Foundations of Behavior Genetics. St Louis: C. V. Mosby.Google Scholar
Gottesman, I. I. (1974) Developmental genetics and ontogenetic psychology: overdue detente and propositions from a matchmaker. In Minnesota Symposium on Child Psychology (ed. Pick, A.). Minneapolis: University of Minnesota Press. pp 5580.Google Scholar
Gottesman, I. I. & Shields, J. (1972) Schizophrenia and Genetics: A Twin Study Vantage Point. London: Academic Press.Google Scholar
Kaij, L. (1967) Atypical endogenous psychosis: report on a family. British Journal of Psychiatry, 113, 415–22.Google Scholar
Khouri, P. J., Haier, R. J., Reider, R. O. & Rosenthal, D. (1980) A symptom schedule for the diagnosis of borderline schizophrenia. British Journal of Psychiatry, 137, 145–7.Google Scholar
McCabe, M. S. (1975) Reactive psychoses. A clinical and genetic investigation. Acta Psychiatrica Scandinavica Supplementum 259.Google Scholar
Ödegaard, O. (1972) The multifactorial theory of inheritance in predisposition to schizophrenia. In Genetic Factors in Schizophrenia (ed. Kaplan, A. R.). Springfield, Illinois: Charles C. Thomas.Google Scholar
Perris, C. (1974) A study of cycloid psychoses. Acta Psychiatrica Scandinavica Supplementum 253.Google Scholar
Raven, J. C. (1948) The Mill Hill Vocabulary Scale, London.Google Scholar
Rosenthal, C. (1963) The Genain Quadruplets. A Study of Heredity and Environment in Schizophrenia. New York: Basic Books.CrossRefGoogle Scholar
Schneider, K. (1959) Clinical Psychopathology. (Translated Hamilton, M. W.). New York: Grune and Stratton.Google Scholar
Shields, J. (1968) A summary of the genetic evidence. In The Transmission of Schizophrenia (ed. Rosenthal, D. and Kety, S. S.).Google Scholar
Slater, E. & Cowie, J. (1971) The Genetics of Mental Disorder. London: Oxford University Press.Google Scholar
Spitzer, R. L. & Endicott, J. (1977) The Schedule for Affective Disorders and Schizophrenia. Lifetime Version. 3rd Edition. New York: New York State Psychiatric Institute.Google Scholar
Spitzer, R. L., Endicott, J. & Robins, E. (1975) Research Diagnostic Criteria, Instrument No. 58. New York: New York State Psychiatric Institute.Google ScholarPubMed
Wing, J. K., Cooper, J. E. & Sartorius, N. (1974) The Measurement and Classification of Psychiatric Symptoms. Cambridge: Cambridge University Press.Google Scholar
World Health Organization (1979) An International Follow-up Study of Schizophrenia. Chichester: John Wiley.Google Scholar
Submit a response

eLetters

No eLetters have been published for this article.