Attachment Security and Oxytocin Receptor Gene Polymorphism Interact to Influence Affectionate Communication

摘要

The present study investigated the interaction of attachment security and genotype in thernoxytocin receptor gene on affectionate communication. Specifically, we predicted thatrnindividuals’ genotype for the single-nucleotide polymorphism (SNP) rs53576 on thernoxytocin receptor gene would show a stronger influence in individuals with weakrnattachment security compared to individuals with strong attachment security. Onernhundred sixty-four participants completed questionnaire measures about their attachmentrnsecurity and affectionate communication and provided saliva samples for genetic analysis.rnIn support of a predicted gene-environment interaction (G x E) interaction, the GGrngenotype showed a stronger influence on affectionate communication for people low inrnattachment security than for people high in attachment security. These results supportrnthe (G x E) approach to understanding the relationship between genetics and environmentalrntriggers, as the influence of genotype for rs53576 on affectionate communication wasrnmoderated by attachment security.