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Longitudinal Research on Temperament in Twins

Published online by Cambridge University Press:  01 August 2014

Anne Mari Torgersen
Anne Mari Torgersen*
Affiliation:
Department of Psychology, University of Oslo, Norway
*
Institute of Psychology, University of Oslo, Box 1094 Blindern, 0317 Oslo 3, Norway

Abstract

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The changing influence of genetic factors of temperamental individuality has been studied longitudinally in a group of 44 same-sexed twin pairs at four different ages from infancy to puberty. Previous results showed that genetic factors seemed to play an important role in the development of temperamental characteristics when the twins were in infancy and at six years of age. The present report shows that when the within-pair differences in temperament are studied again at age 15 years, the similarity of identical pairs is even higher than at earlier ages. When shared and nonshared stress in the twin pairs was assessed at this age, some interactions were found between within-pair differences in temperament, stress and zygosity.

Keywords

Longitudinal studyTwinsTemperamentGene-environment interaction
Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 36 , Issue 2 , April 1987 , pp. 145 - 154
Copyright
Copyright © The International Society for Twin Studies 1987

References

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