Linking Romantic Attachment and Self-Injury: The Roles of the Behavioural Systems

Attachment theory is considered an explanatory framework for understanding non-suicidal self-injury. Despite theoretical postulations, few studies have examined links between romantic attachment and its interconnected systems (the caregiving and sexual systems) and self-injury. This study investigated whether self-injurious thoughts and behaviours could be predicted by the functioning of the three systems. Two-hundred and sixty-three young adults participated in the study. Results revealed that participants endorsing self-injurious thoughts experience greater attachment anxiety and avoidance, controlling and compulsive romantic caregiving behaviours, and lower sexual satisfaction than participants with no thoughts. Conversely, findings indicate that the behavioural systems did not predict self-injurious behaviours. Such findings suggest that dimensions of the three interrelated behavioural systems hold unique roles in understanding young adult self-injurious thoughts, and that the constructs that predict self-injurious thoughts may differ from those that predict self-injurious behaviours.