论文部分内容阅读
目的:评估超重或肥胖青少年(n=51,男30人,女21人)与正常体重青少年(n=52,男31人,女21人)是否存在冲动性差异。方法:采用自我报告和行为测量相结合的方法来评估被试的冲动性。其中,开门任务(DOT)和延迟贴现任务(DDT)用于行为冲动性测量,Barratt冲动量表用于被试的冲动性特质测量。结果:在两个行为测量任务中,超重和肥胖者较正常体重者表现出更高奖赏敏感性(即,更可能选择少而能立即获得的奖励),但这个效应仅在女生中存在。然而,女生的BMI能够预测他们在食物和金钱贴现任务中的表现,但不能预测其在开门任务中的表现。超重/肥胖组与正常体重组的冲动性差异仅存在于行为测量任务中,在冲动性的自我报告得分上无差异。此外,三种冲动性测量任务之间无显著相关。结论:与正常体重女生相比,超重/肥胖女生表现出决策缺陷。目前,两组之间决策能力差异的原因尚不清楚,今后研究需要在此方面做出进一步努力。
PURPOSE: To assess the impulsive differences in overweight or obese adolescents (n = 51, 30 males and 21 females) and normal-weight adolescents (n = 52, 31 males and 21 females). Methods: The self-reported and behavioral measurements were used to assess the participants’ impulsiveness. Among them, the door opening task (DOT) and delayed discounted tasks (DDT) for behavioral impulsivity measurement, Barratt impulse scale for the impulsive trait measurement. Results: Overweight and obese patients showed higher rewards sensitivity (ie, less likely to receive immediate rewards) than normal weight in both behavioral tasks, but this effect exists only in girls. However, girls’ BMIs can predict their performance in food and money discounting tasks, but can not predict their performance in open tasks. Impulsive differences between overweight / obesity group and normal weight group only existed in the task of behavior measurement, and there was no difference in the impulsive self-reported score. In addition, there is no significant correlation between the three impulsivity measurement tasks. Conclusions: Overweight / obese girls exhibit a defect in decision making compared with girls of normal weight. At present, the reasons for the difference in decision-making ability between the two groups are not yet clear, and future research needs to make further efforts in this regard.