School of Psychology, Flinders University, Adelaide, Australia.
Eur Eat Disord Rev. 2015 Jul;23(4):304-11. doi: 10.1002/erv.2364. Epub 2015 May 13.
Set-shifting inefficiencies have been consistently identified in adults with anorexia nervosa (AN). It is less clear to what degree similar inefficiencies are present in those with bulimia nervosa (BN). It is also unknown whether perfectionism is related to set-shifting performance. We employed a commonly used set-shifting measure, the Trail Making Test (TMT), to compare the performance of inpatients with AN and BN with a healthy control sample. We also investigated whether perfectionism predicted TMT scores. Only the BN sample showed significantly suboptimal performance, while the AN sample was indistinguishable from controls on all measures. There were no differences between the AN subtypes (restrictive or binge/purge), but group sizes were small. Higher personal standards perfectionism was associated with better TMT scores across groups. Higher concern over mistakes perfectionism predicted better accuracy in the BN sample. Further research into the set-shifting profile of individuals with BN or binge/purge behaviours is needed.
在厌食症（AN）患者中，已一致发现转换效率低下。但在神经性贪食症（BN）患者中，其转换效率低下的程度尚不清楚。也不知道完美主义是否与转换效率有关。我们采用了一种常用的转换效率测量方法，即连线测试（TMT），来比较 AN 和 BN 患者住院患者与健康对照组的表现。我们还研究了完美主义是否预测 TMT 分数。只有 BN 样本显示出明显的次优表现，而 AN 样本在所有指标上均与对照组无法区分。AN 亚型（限制型或暴食/清除型）之间没有差异，但组的规模较小。较高的个人标准完美主义与所有组的 TMT 分数较高有关。较高的关心错误完美主义预测 BN 样本的准确性更高。需要进一步研究 BN 患者或暴食/清除行为者的转换效率特征。
