Abstract：
Substance use is associated with altered or elevated food consumption and disordered eating. In the present study we examined whether breadth (variety) of drug use was associated with elevated portion size in a general population sample as it was in persons in recovery from substance use disorder. Furthermore, measures of emotional eating, impulsivity, food misuse, food craving were taken as possible mediators and reward responsiveness was examined as a potential moderator of this association. 444 adults (48.6 % women, mean age of 47.8 years) completed an online study in which they were asked to make judgements of ideal portion size for 6 different foods using a validated online tool that allowed participants to adjust the portion size of images of foods. Ideal portion size has been identified as a strong predictor of actual consumption. Participants were also asked to report the number of substances used in the past and provide anthropometric information. The results confirmed that breadth of drug use was associated with selection of higher portion size. Reward responsiveness was not a moderator of this relationship. Of the tested mediators, only impulsivity mediated the association between breadth of drug use and portion size. The results show that impulsivity may underlie the association between eating and substance use.
摘要：
物质使用与改变或增加的食物消耗和无序饮食有关。在本研究中，我们检查了一般人群样本中药物使用的广度（种类）是否与从物质使用障碍中康复的人的比例增加有关。此外，情绪饮食的措施，冲动,食物滥用,食物渴望被认为是可能的中介,奖励反应被认为是这种关联的潜在调节因素.444名成年人(48.6%为女性,平均年龄47.8岁）完成了一项在线研究，其中要求他们使用经过验证的在线工具对6种不同食物的理想份量进行判断，该工具允许参与者调整食物图像的份量。理想的部分大小已被确定为实际消费的有力预测因子。参与者还被要求报告过去使用的物质数量并提供人体测量信息。结果证实，药物使用的广度与选择较高的份量有关。奖励反应不是这种关系的调节者。在经过测试的调解员中，只有冲动性介导了药物使用广度和份量之间的关联。结果表明，冲动可能是饮食与物质使用之间关联的基础。
