Differences according to Sex in Sociosexuality and Infidelity after Traumatic Brain Injury

摘要

Nonmonogamy is part of the evolutionary trends preserved in humans [1]. In fact, infidelity constitutes probably one of the most complex problems faced by mental health professionals, especially couple therapists, marriage and family therapists, and psychotherapists [2,3]. Based on evolutionary theories, there are sex differences regarding reactions to infidelity. For instance, men seem to be more distressed by sexual infidelity (e.g., sexual relationship or sexually oriented physical contact with another person), while women may be more distressed by emotional infidelity (e.g., diversion of the partner's emotional commitment toward another person) [4]. Interestingly, human brains show different activation patterns in response to different types of infidelity; men and women process sexual and emotional infidelity using different neuropsychological networks [5].