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Genetical, Environmental and Personality Factors Influencing the Age of First Sexual Intercourse in Twins

Published online by Cambridge University Press:  31 July 2008

N. G. Martin ,
L. J. Eaves  and
H. J. Eysenck
N. G. Martin
Affiliation:
Department of Genetics, University of Birmingham, Denmark Hill, London
L. J. Eaves
Affiliation:
Department of Genetics, University of Birmingham, Denmark Hill, London
H. J. Eysenck
Affiliation:
Department of Psychology, Institute of Psychiatry, Denmark Hill, London
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Summary

A study of MZ and DZ twins suggests that cultural differences are less important than individual environmental experiences in determining the age of first sexual intercourse. Certain personality factors are found to be correlated with this trait and there is also evidence that genetical differences may predispose individuals to cross this threshold at an earlier or a later age.

Type
Research Article
Information
Journal of Biosocial Science , Volume 9 , Issue 1 , January 1977 , pp. 91 - 97
Copyright
Copyright © 1977, Cambridge University Press

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References

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