Lowe M R, Gleaves D H, DiSimone-Weiss R T, Furgueson C, Gayda C A, Kolsky P A, Neal-Walden T, Nelsen L A, McKinney S
Department of Clinical and Health Psychology, Allegheny University of the Health Sciences, Philadelphia, Pennsylvania 19102, USA.
J Abnorm Psychol. 1996 Nov;105(4):508-17. doi: 10.1037//0021-843x.105.4.508.
The authors evaluated the continuity model of bulimia nervosa, which suggests that bulimia results from extreme weight concern and dieting practices. Individuals with bulimia, current dieters, restrained nondieters, and unrestrained nondieters were compared on measures of general psychopathology, eating-disorder-specific psychopathology, and overeating. Multiple methods, including questionnaires, clinical interviews, and food records, were used to collect data. The continuity and discontinuity models were tested with trend and regression analyses. The results of most analyses were consistent with the continuity perspective. However, binge eating behaviour exhibited a clear nonlinear trend, which occurred because binge eating was common in bulimic individuals but virtually non-existent in the other 3 groups. Current dieters scored higher than restrained nondieters on restraint/ weight concern, but not on psychopathology or binge eating. Overall, the results suggest that "normal" dieting is associated with psychological, but not consummatory, symptoms of bulimia.
作者评估了神经性贪食症的连续性模型，该模型认为贪食症是由对体重的极度关注和节食行为导致的。对患有贪食症的个体、当前节食者、克制性非节食者和非克制性非节食者在一般精神病理学、饮食失调特异性精神病理学和暴饮暴食方面进行了比较。采用了多种方法，包括问卷调查、临床访谈和食物记录来收集数据。通过趋势分析和回归分析对连续性和非连续性模型进行了检验。大多数分析结果与连续性观点一致。然而，暴饮暴食行为呈现出明显的非线性趋势，这是因为暴饮暴食在贪食症患者中很常见，但在其他三组中几乎不存在。当前节食者在克制/体重关注方面的得分高于克制性非节食者，但在精神病理学或暴饮暴食方面并非如此。总体而言，结果表明“正常”节食与贪食症的心理症状有关，但与进食症状无关。
