School of Psychology, The University of New South Wales, Sydney, NSW, Australia.
Appetite. 2012 Oct;59(2):488-93. doi: 10.1016/j.appet.2012.06.014. Epub 2012 Jun 28.
The aim of the present study was to determine whether the counter-regulation observed among preloaded restrained eaters is a result of motivated overeating. Restrained eaters (n=58) and unrestrained eaters (n=60) first consumed either a non-caloric drink or a high-calorie milkshake preload. Next, participants completed a food-reinforcement task to assess their motivation to obtain cookies. Finally, participants completed a cookie taste test. Preloaded unrestrained eaters ate less than did unrestrained eaters in the control condition. Preloaded restrained eaters, in contrast, displayed the typical pattern of counter-regulation in that they ate significantly more cookies than did restrained eaters in the control condition. Reinforcing value predicted cookie consumption for unrestrained but not for restrained eaters. These findings suggest that counter-regulation is not a result of motivated eating, and that the exact mechanism that underlies the phenomenon still requires clarification.
本研究旨在确定预先限制进食者中观察到的补偿性进食是否是出于暴食的动机。限制进食者（n=58）和非限制进食者（n=60）首先摄入无热量饮料或高热量奶昔预食。接下来，参与者完成了一项食物强化任务，以评估他们获得饼干的动机。最后，参与者完成了饼干品尝测试。与对照组相比，预加载的非限制进食者比非限制进食者吃得少。相比之下，预先限制进食者表现出典型的补偿性进食模式，即与对照组相比，他们明显吃了更多的饼干。强化价值预测了非限制进食者的饼干摄入量，但不能预测限制进食者的饼干摄入量。这些发现表明，补偿性进食不是出于暴食的动机，而且支撑这一现象的确切机制仍需要进一步阐明。
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