On the etiology of aesthetic chills: A behavioral genetic study

Bignardi, Giacomo; Chamberlain, Rebecca; Kevenaar, Sofieke T; Tamimy, Zenab; Boomsma, Dorret I

doi:10.1038/s41598-022-07161-z

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On the etiology of aesthetic chills: A behavioral genetic study

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Bignardi, Giacomo
Max Planck School of Cognition;
Department of Psychology, Goldsmiths University of London ;
Language and Genetics Department, MPI for Psycholinguistics, Max Planck Society;

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Bignardi, G., Chamberlain, R., Kevenaar, S. T., Tamimy, Z., & Boomsma, D. I. (2022). On the etiology of aesthetic chills: A behavioral genetic study. Scientific Reports, 12: 3247. doi:10.1038/s41598-022-07161-z.

Cite as: https://hdl.handle.net/21.11116/0000-0009-EBD0-3

Abstract

Aesthetic chills, broadly defined as a somatic marker of peak emotional-hedonic responses, are experienced by individuals across a variety of human cultures. Yet individuals vary widely in the propensity of feeling them. These individual differences have been studied in relation to demographics, personality, and neurobiological and physiological factors, but no study to date has explored the genetic etiological sources of variation. To partition genetic and environmental sources of variation in the propensity of feeling aesthetic chills, we fitted a biometrical genetic model to data from 14127 twins (from 8995 pairs), collected by the Netherlands Twin Register. Both genetic and unique environmental factors accounted for variance in aesthetic chills, with heritability estimated at .36 ([.33, .39] 95% CI). We found females more prone than males to report feeling aesthetic chills. However, a test for genotype x sex interaction did not show evidence that heritability differs between sexes. We thus show that the propensity of feeling aesthetic chills is not shaped by nurture alone, but it also reflects underlying genetic propensities.Competing Interest StatementThe authors have declared no competing interest.