Journal of Abnormal Child Psychology

, 34:18

Examining the State-Trait Anxiety Relationship: A Behavioural Genetic Approach

Authors

    • Institute of PsychiatryKing's College London
    • Box P080, Social, Genetic and Developmental Psychiatry Research CentreInstitute of Psychiatry, De'Crespigny Park
  • Thalia C. Eley
    • Institute of PsychiatryKing's College London
  • Jim Stevenson
    • Department of PsychologyUniversity of Southampton
Article

DOI: 10.1007/s10802-005-9006-7

Cite this article as:
Lau, J.Y.F., Eley, T.C. & Stevenson, J. J Abnorm Child Psychol (2006) 34: 18. doi:10.1007/s10802-005-9006-7

State and trait anxiety define different aspects of anxiety, and may represent environmentally and genetically mediated components of this phenotype. Furthermore their relationship, where trait anxiety is expressed through levels of state anxiety under threatening circumstances, may represent a process of interplay between a genetic vulnerability factor and an environmental stressor. To test these hypotheses, we explored genetic and environmental influences on measures of state and trait anxiety in a sample of 1058 twins (521 males and 537 females) aged 8–16. The results were consistent with these hypotheses. State anxiety is largely influenced by environmental factors in males and females whereas trait anxiety shows moderate genetic effects and substantial non-shared environment effects. Their association was accounted for by non-shared environmental effects, with modest genetic and shared environmental inputs. The implications of these results for vulnerability mechanisms involving stress reactivity on anxiety are discussed.

KEY WORDS:

state anxiety trait anxiety genetics twins children

Copyright information

© Springer Science+Business Media, Inc. 2006