Dumstorf Katharina, Halbeisen Georg, Paslakis Georgios
University Clinic for Psychosomatic Medicine and Psychotherapy, Medical Faculty, Campus East-Westphalia, Ruhr-University Bochum, Virchowstr. 65, 32312, Luebbecke, Germany.
J Eat Disord. 2024 Jan 24;12(1):18. doi: 10.1186/s40337-024-00975-4.
Many young women are dissatisfied with their bodies. This study investigated the effect on current body dissatisfaction levels of a newly developed evaluative conditioning procedure that paired self-similar and self-dissimilar images of bodies with positive and neutral affective images, respectively. We hypothesized that learning the contingency that self-similar bodies predict positive affectivity is one process that could aid in explaining how these procedures function.
Adult women without disordered eating pathology participated in an online experiment with random assignment to an intervention or a control condition. All participants initially rated body images in self-similarity and were subsequently asked to categorize positive and neutral images by valence as quickly and accurately as possible. In the intervention condition, self-similar bodies systematically preceded positive images, and self-dissimilar images preceded neutral images, creating a similar body → positive contingency. Pairings in the control condition were unsystematic such that no contingency was present. We measured categorization latencies and accuracies to infer contingency learning as well as current body dissatisfaction immediately before and after exposure to the pairings. All participants further completed measures of trait body image concerns and disordered eating psychopathology at baseline, which we examined as moderators of an expected relation between condition assignment, contingency learning, and body dissatisfaction improvements.
We analyzed data from N = 173 women fulfilling the inclusion criteria. Moderated mediation analyses showed that assignment to the intervention (vs. control) condition predicted increased similar body → positive contingency learning, which in turn predicted improved body dissatisfaction post-intervention, but only among women with higher pre-existing trait body image concerns or disordered eating levels.
The findings point toward the relevancy of further exploring the utility of pairing procedures. Similar body → positive contingency learning predicted improved body dissatisfaction in individuals with normatively high body image concerns, which suggests pairing procedures could help inform future research on reducing body dissatisfaction.
许多年轻女性对自己的身体不满意。本研究调查了一种新开发的评价性条件作用程序对当前身体不满意水平的影响,该程序分别将与自我相似和自我不相似的身体形象与积极和中性情感形象配对。我们假设,了解自我相似身体预示积极情感这一偶然性是有助于解释这些程序如何起作用的一个过程。
没有饮食失调病理的成年女性参与了一项在线实验,随机分配到干预组或对照组。所有参与者最初对身体形象的自我相似性进行评分,随后被要求尽快且准确地按效价对积极和中性形象进行分类。在干预组中,自我相似的身体系统地先于积极形象出现,自我不相似的形象先于中性形象出现,从而形成了相似身体→积极的偶然性。对照组中的配对是不系统的,不存在偶然性。我们测量了分类潜伏期和准确率,以推断偶然性学习情况,以及在接触配对前后立即测量当前的身体不满意程度。所有参与者在基线时还完成了特质身体形象关注和饮食失调心理病理学的测量,我们将其作为条件分配、偶然性学习和身体不满意改善之间预期关系的调节因素进行了检验。
我们分析了符合纳入标准的N = 173名女性的数据。调节中介分析表明,分配到干预组(与对照组相比)可预测相似身体→积极偶然性学习的增加,这反过来又预测了干预后身体不满意程度的改善,但仅在先前特质身体形象关注较高或饮食失调水平较高的女性中如此。
研究结果表明进一步探索配对程序的效用具有相关性。相似身体→积极偶然性学习预测了身体形象关注较高的个体身体不满意程度的改善,这表明配对程序可能有助于为未来减少身体不满意的研究提供信息。