TY - JOUR PY - 2020// TI - Threat-avoidance tendencies moderate the link between serotonin transporter genetic variation and reactive aggression JO - Frontiers in behavioral neuroscience A1 - Peeters, Deborah G. A. A1 - Lange, Wolf-Gero A1 - von Borries, Anna Katinka Louise A1 - Franke, Barbara A1 - Volman, Inge A1 - Homberg, Judith R. A1 - Verkes, Robbert-Jan A1 - Roelofs, Karin SP - e562098 EP - e562098 VL - 14 IS - N2 - The short (S) allele of the serotonin transporter-linked promoter region (5-HTTLPR) polymorphism has been linked to reactive aggression in men, but this association is less consistent in females. Reactive aggression has been particularly described as a result of fear-driven defense to threat, but how this interaction between defensive behavior and aggression is expressed in S-allele carriers remains unknown. In order to explore this interplay between 5-HTTLPR genotype, defensive behavior and reactive aggression, we combined genotyping with objective measures of action tendencies toward angry faces in an approach-avoidance task (AAT) and reactive aggression in the Taylor aggression paradigm (TAP) in healthy females, N = 95. This study shows that female S-allele carriers in general display increased implicit reactive aggression (administering aversive white noise) toward opponents. Furthermore, we found that threat-avoidance tendencies moderate the association between 5-HTTLPR genotype and aggression displayed on the TAP. Together, these findings indicate a positive correlation between avoidance of angry faces in the AAT and reactive aggression in the TAP exclusively present in S-allele carriers.
Language: en
LA - en SN - 1662-5153 UR - http://dx.doi.org/10.3389/fnbeh.2020.562098 ID - ref1 ER -