PMID: 11918091Mar 29, 2002Paper

The heritability of common phobic fear: a twin study of a clinical sample

Journal of Anxiety Disorders
I SkreE Kringlen

Abstract

The aim of this study was to investigate the genetic and environmental contribution to common phobic fears, and to relate the findings to contemporary theories about the etiology of common phobic fears. Self-reported common phobic fear was studied in a treatment sample of 23 monozygotic and 38 same-sex dizygotic twin pairs. Heritability of .47 was observed for common phobic fear of small animals and social fear, and a heritability of .30 in common agoraphobic fear. For common fear of nature phenomena and situational fear, the heritability was 0. The finding that common nature and situational fears were solely caused by environmental factors is in support of learning theory, whereas results for animal, social, and other common phobic fear are in support of an integrative theory of biological preparedness, learning history, and a cognitive style of fearful expectation.

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Citations

Feb 26, 2008·European Archives of Psychiatry and Clinical Neuroscience·Alice M GregoryThalia C Eley
Dec 13, 2007·Behavior Genetics·Marijn A DistelDorret I Boomsma
Jun 19, 2013·Journal of Anxiety Disorders·C M H H Van HoutemA De Jongh
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Jan 26, 2002·Behavioural Brain Research·André RamosReinaldo N Takahashi
Feb 26, 2008·Psychological Medicine·K S KendlerP Lichtenstein
Jan 8, 2011·Psychological Medicine·N CzajkowskiT Reichborn-Kjennerud
Mar 8, 2012·Cyberpsychology, Behavior and Social Networking·Deniz Deryakulu, Erkan Calışkan
Apr 25, 2012·Psychiatric Genetics·Abby J FyerSteven P Hamilton
Jun 26, 2004·Annual Review of Neuroscience·Joshua A Gordon, Rene Hen
Jan 27, 2009·Journal of Affective Disorders·Jack EdvardsenPer Anders Øien
Aug 19, 2007·Journal of Affective Disorders·Jack EdvardsenPer Anders Oien
Aug 19, 2007·Biological Psychiatry·John M HettemaKenneth S Kendler
Nov 19, 2014·World Journal of Clinical Cases·Ava Elizabeth CarterRoy George
Sep 29, 2021·The Journal of Nervous and Mental Disease·James Reich, Alan Schatzberg

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