Reduced cooperation in borderline personality disorder largely reflects an absence of consistent cooperators: a reanalysis of Saunders et al. (2015)

Background. Interpersonal difficulties are a core feature of borderline personality disorder (BPD). Saunders et al. (2015) reported that, in an iterated Prisoner’s Dilemma against a Tit-for-Tat partner, women with BPD cooperated less than both women with euthymic bipolar disorder and healthy control