Approach and avoidance motivation in eating disorders
Approach and avoidance motivation in eating disorders
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DOI：
10.1016/j.psychres.2011.04.022
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发表时间：
2011-08-15
影响因子：
11.3
通讯作者：
Smillie, Luke D.
中科院分区：
文献类型：
--
作者：
Harrison, Amy;Treasure, Janet;Smillie, Luke D.
.已经提出，接近和回避过程可能在进食障碍（ED）的发展和维持中起关键作用，包括神经性厌食症（AN）和神经性贪食症（BN）。行为抑制系统和行为激活系统量表（BIS/BAS）和食欲动机量表（AMS）的问卷调查286名参与者：91名健康对照（HC）。121名参与者与当前的艾德，无论是AN（限制性和狂欢清除亚型），或BN和74名参与者从ED恢复。ED的个人有更高的敏感性水平的惩罚和较低水平的奖励反应比对照组。从艾德中恢复的个体得分与急性组中的个体相同，除了BAS乐趣寻求，他们的得分显著高于那些限制AN的个体。判别分析显示，HC是最大限度地分离的急性和恢复艾德组沿着一个维度反映高惩罚敏感性和低奖励敏感性。分类分析表明，艾德和HC组成员是从奖励和惩罚敏感性指标预测的;然而，恢复的参与者往往被错误地归类为ED。这项研究表明，高惩罚敏感性和低奖励反应/敏感性可能形成一个与发展ED风险相关的人格集群。（C）2011由Elsevier爱尔兰Ltd.出版。
. It has been proposed that approach and avoidance processes may be critically involved in the development and maintenance of eating disorders (EDs), including anorexia nervosa (AN) and bulimia nervosa (BN). The Behavioural Inhibition System and Behavioural Activation System Scales (BIS/BAS) and Appetitive Motivation Scale (AMS) questionnaires were administered to 286 participants: 91 healthy controls (HCs). 121 participants with a current ED, either AN (restrictive and binge purge subtypes), or BN and 74 participants recovered from an ED. Individuals with EDs had higher levels of sensitivity to punishment and lower levels of reward reactivity than controls. Individuals in recovery from an ED scored the same as those in the acute group, with the exception of BAS fun seeking, for which they scored significantly higher than those with restricting AN. Discriminant analysis revealed that HCs were maximally separated from those in the acute and recovered ED groups along a dimension reflecting high punishment sensitivity and low reward sensitivity. Classification analysis demonstrated that ED and HC group membership was predicted from reward and punishment sensitivity measures; however recovered participants tended to be misclassified as ED. This study suggests high punishment sensitivity and low reward reactivity/sensitivity might form a personality cluster associated with the risk of developing an ED. (C) 2011 Published by Elsevier Ireland Ltd.