Rodrigue Christopher, Ouellette Anne-Sophie, Lemieux Simone, Tchernof André, Biertho Laurent, Bégin Catherine
School of Psychology, Laval University, Quebec City, Canada.
School of Nutrition, Laval University, Quebec City, Canada.
Eat Weight Disord. 2018 Aug;23(4):469-478. doi: 10.1007/s40519-018-0530-1. Epub 2018 Jun 26.
Food addiction (FA) has recently emerged as a new field in the study of obesity. Previous studies have contributed to identifying psychological correlates of FA. However, few researchers have examined the cognitive profile related to this condition; up until now, attentional biases related to food cues and a poorer performance monitoring have been observed. The present study aimed to examine the psychological profile and executive functioning related to FA in individuals with severe obesity and awaiting bariatric surgery. Participants (N = 86) were split into two groups, according to their level of FA symptoms (low FA vs high FA). Groups were compared on questionnaires measuring binge eating, depression and anxiety symptoms, and impulsivity as well as on measures reflecting executive functioning (D-KEFS and BRIEF-A). The relationship between FA groups and patterns of errors during the D-KEFS' Color-Word Interference Test was further analyzed. Individuals within the high FA group reported significantly more binge eating, depressive and anxiety symptoms, and more metacognitive difficulties. They also tended to show a poorer inhibition/cognitive flexibility score and a typical pattern of errors, characterized by an increased number of errors as the tasks' difficulty rose as opposed to a decreased number of errors, which characterizes an atypical pattern of errors. The present results show that the inability to learn from errors or past experiences is related to the severity of FA and overall impairments.Level of evidence Level V, descriptive study.
食物成瘾（FA）最近已成为肥胖研究中的一个新领域。先前的研究有助于确定FA的心理相关因素。然而，很少有研究人员研究与这种情况相关的认知特征；到目前为止，已经观察到与食物线索相关的注意力偏差和较差的绩效监测。本研究旨在检查严重肥胖且等待减肥手术的个体中与FA相关的心理特征和执行功能。参与者（N = 86）根据其FA症状水平分为两组（低FA组与高FA组）。对两组在测量暴饮暴食、抑郁和焦虑症状以及冲动性的问卷上进行比较，并在反映执行功能的测量指标（D-KEFS和BRIEF-A）上进行比较。进一步分析了FA组与D-KEFS颜色-词语干扰测试期间错误模式之间的关系。高FA组的个体报告的暴饮暴食、抑郁和焦虑症状明显更多，元认知困难也更多。他们还往往表现出较差的抑制/认知灵活性得分和典型的错误模式，其特征是随着任务难度增加错误数量增加，而不是错误数量减少，后者是一种非典型的错误模式。目前的结果表明，无法从错误或过去的经验中学习与FA的严重程度和整体损害有关。证据水平为V级，描述性研究。
