Zhou Yizhou, Gao Xiao, Chen Hong, Kong Fanchang
Key Laboratory of Cognition and Personality (Ministry of Education), Southwest University, Chongqing, China; School of Psychology, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, China.
Key Laboratory of Cognition and Personality (Ministry of Education), Southwest University, Chongqing, China; School of Psychology, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, China.
Eat Behav. 2017 Aug;26:70-75. doi: 10.1016/j.eatbeh.2017.01.010. Epub 2017 Feb 1.
Restrained eating for weight control and loss is becoming highly prevalent in many affluent societies, while most of the restrained eaters are rather unsuccessful in the long term. According to the strength model of self-control, the disinhibition effect of restrained eaters may occur after the depletion of self-control resources. However, no work has examined the direct impact of self-control resources on inhibitory control ability of restrained eaters. This study investigated the influences of self-control resources on the food-related inhibitory control among high-restraint/low-disinhibition restrained eaters, high-restraint/high-disinhibition restrained eaters and unrestrained eaters using stop signal task. Results reveal that there's no difference of food-related inhibitory control between three groups when the self-control resources are non-depleted, while high-restraint/high-disinhibition restrained eaters showing a decrease of food-related inhibitory control after ego-depletion. This disinhibition effect only seems to occur in samples of restrained eaters with a high tendency toward overeating.
为控制体重和减肥而进行的节食在许多富裕社会正变得极为普遍，然而从长期来看，大多数节食者相当不成功。根据自我控制的强度模型，节食者的去抑制效应可能在自我控制资源耗尽后出现。然而，尚无研究考察自我控制资源对节食者抑制控制能力的直接影响。本研究使用停止信号任务，调查了自我控制资源对高节制/低去抑制节食者、高节制/高去抑制节食者和非节食者与食物相关的抑制控制的影响。结果显示，当自我控制资源未被耗尽时，三组之间与食物相关的抑制控制没有差异，而高节制/高去抑制节食者在自我损耗后与食物相关的抑制控制有所下降。这种去抑制效应似乎仅在有暴饮暴食高倾向的节食者样本中出现。
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