Anticipatory and Consummatory Responses Across Reward Domains in Adolescents With Anorexia Nervosa

IF 4.7 2区医学 Q1 NUTRITION & DIETETICS

International Journal of Eating Disorders Pub Date : 2024-09-05 DOI:10.1002/eat.24287

Julia Pines, Kelsey Hagan, Caitlin Lloyd, Elizabeth Raffanello, Susie Hong, Jonathan Posner, B. Timothy Walsh, Joanna E. Steinglass

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引用次数: 0

Abstract

Objective

Anorexia nervosa (AN) is characterized by a tendency to limit intake of food, with specific restriction of foods that are generally considered highly palatable. This observation raises questions about whether reward processing is disturbed in AN. This study examined whether adolescents with AN differ from healthy control peers (HC) in anticipatory and consummatory reward processing.

Method

Adolescents with AN (n = 71) and HC (n = 41) completed the Temporal Experience of Pleasure Scale (TEPS). The TEPS Anticipatory Pleasure scale was divided into two further subscales (Food and Non-food). Anticipatory (Food and Non-food) and Consummatory Pleasure (Non-food) scores were compared between adolescents with AN and HC using independent t-tests.

Results

TEPS scores were significantly lower among adolescents with AN than HC in Anticipatory Pleasure Food (t(110) = 7.80, p < 0.001) and Non-food (t(110) = 4.36, p < 0.001), and Consummatory Pleasure (t(110) = 2.60, p = 0.01) subscales. When controlling for BDI score, there was no significant group difference in TEPS Consummatory Pleasure scores (t(108) = 0.88, p = 0.38). Among adolescents with AN, Food Anticipatory Pleasure was significantly negatively correlated with all EDE-Q subscales and global score (r(68) = −0.38, p = 0.002) and positively correlated with food intake at a laboratory buffet meal (r(61) = 0.53, p < 0.001).

Discussion

Measures of both anticipatory and consummatory reward were reduced among adolescents with AN with a short duration of illness. In this study, eating disorder symptoms were related to diminished reward responses in anticipation of food. Dampened anticipatory reward response may comprise a mechanism of illness in AN that should be subject to further study.

查看原文本刊更多论文

神经性厌食症青少年在不同奖励领域的预期反应和消耗反应。

目的：神经性厌食症（AN）的特点是倾向于限制食物的摄入量，尤其是限制摄入通常被认为味觉很好的食物。这一观察结果引发了有关神经性厌食症患者的奖赏加工是否受到干扰的问题。本研究探讨了患有厌食症的青少年与健康对照组青少年（HC）在预期性和消耗性奖赏处理方面是否存在差异：方法：患有自闭症的青少年（n = 71）和健康对照组青少年（n = 41）完成了 "快感时空体验量表"（Temporal Experience of Pleasure Scale，TEPS）。TEPS的预期快感量表又分为两个子量表（食物和非食物）。使用独立t检验比较了AN青少年和HC青少年的预期性快感（食物和非食物）和消耗性快感（非食物）得分：有自闭症的青少年在预期性快感食物方面的 TEPS 分数明显低于有自闭症的青少年（t(110) = 7.80，p 讨论：在病程较短的AN青少年中，预期奖赏和消费奖赏的测量值均有所降低。在这项研究中，进食障碍症状与预期食物奖赏反应减弱有关。预期奖赏反应减弱可能是进食障碍的一种发病机制，值得进一步研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Eating Disorders 医学-精神病学

CiteScore

10.00

自引率

12.70%

发文量

204

审稿时长

4-8 weeks

期刊介绍： Articles featured in the journal describe state-of-the-art scientific research on theory, methodology, etiology, clinical practice, and policy related to eating disorders, as well as contributions that facilitate scholarly critique and discussion of science and practice in the field. Theoretical and empirical work on obesity or healthy eating falls within the journal’s scope inasmuch as it facilitates the advancement of efforts to describe and understand, prevent, or treat eating disorders. IJED welcomes submissions from all regions of the world and representing all levels of inquiry (including basic science, clinical trials, implementation research, and dissemination studies), and across a full range of scientific methods, disciplines, and approaches.