Molecular genetic underpinnings of self-control: 5-HTTLPR and self-control in a sample of inmates

Jessica Wells, Todd Armstrong, Brian Boutwell, Danielle Boisvert, Shahida Flores, Mary Symonds, David Gangitano

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Purpose: Several studies now show that self-control, as proposed by Gottfredson and Hirschi (1990), is at least moderately heritable. Studies of molecular genetic variation related to serotonergic function suggest that the heritability of self-control may be explained, in part, by the 5-HTTLPR polymorphism. Methods: The current research tests the association between the 5-HTTLPR polymorphism and self-control as measured by the Grasmick et al. (1993) scale. Analyses were based on a sample of incarcerated males and considered the effect of the 5-HTTLPR polymorphism on the full self-control scale as well as the specific dimensions of self-control. Results: The s/s genotype interacted with abuse to predict increases in overall self-control, preference for simple tasks and physical activity. Relative to the s/l genotype, the l/l genotype, which has been linked to psychopathy, was directly associated with more self-centeredness. Conclusions: Results show that molecular genetic variation related to serotonergic function plays a role in the heritability of self-control. Variation in the association between 5-HTTLPR genotype and the distinct dimensions of self-control, while consistent with recent literature (see Yildirim & Derksen, 2013), indicates that self-control as originally presented by Gottfredson and Hirschi (1990) is not a unitary construct.

Original languageEnglish
Pages (from-to)386-396
Number of pages11
JournalJournal of Criminal Justice
Volume43
Issue number5
DOIs
StatePublished - 1 Sep 2015

EGS Disciplines

  • Criminology and Criminal Justice

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