Duke University Medical Center, Chapel Hill, NC, USA.
J Clin Psychol. 2011 Apr;67(4):391-403. doi: 10.1002/jclp.20770. Epub 2011 Jan 3.
We studied the relation between intrusive and repetitive hair pulling, the defining feature of trichotillomania, and compulsive and impulsive features in 1,453 individuals with anorexia nervosa and bulimia nervosa. We conducted a series of regression models examining the relative influence of compulsive features associated with obsessive-compulsive disorder, compulsive features associated with eating disorders, trait features related to harm avoidance, perfectionism, and novelty seeking, and self harm. A final model with a reduced sample (n = 928) examined the additional contribution of impulsive attributes. One of 20 individuals endorsed hair pulling. Evidence of a positive association with endorsement of compulsive behavior of the obsessive-compulsive spectrum emerged. Hair pulling may be more consonant with ritualistic compulsions than impulsive urges in those with eating disorders.
我们研究了侵入性和重复性的拔毛行为（拔毛癖的主要特征）与神经性厌食症和贪食症的 1453 名个体的强迫和冲动特征之间的关系。我们进行了一系列回归模型分析，以检验与强迫症相关的强迫特征、与进食障碍相关的强迫特征、与伤害回避、完美主义和寻求新奇有关的特质特征，以及自伤行为的相对影响。在一个缩减样本（n=928）的最终模型中，我们还考察了冲动属性的额外贡献。20 个人中有一个人有拔毛行为。有证据表明，与强迫症谱中的强迫行为的认可呈正相关。在患有饮食障碍的人群中，拔毛行为可能更符合仪式性强迫，而不是冲动冲动。
