Inhibitory control and negative affect in relation to food intake among youth.
Inhibitory control and negative affect in relation to food intake among youth.
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DOI：
10.1016/j.appet.2020.104858
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发表时间：
2021-01-01
期刊：
影响因子：
5.4
通讯作者：
Yanovski JA
中科院分区：
文献类型：
--
作者：
Byrne ME;Shank LM;Altman DR;Swanson TN;Ramirez E;Moore NA;Rubin SG;LeMay-Russell S;Parker MN;Kaufman RE;Yang SB;Torres SL;Brady SM;Kelly NR;Tanofsky-Kraff M;Yanovski JA
负面情绪和不良的抑制控制与青年的饮食行为有关，并可能导致肥胖的发展和/或维持。虽然很少有研究联合检查这些结构的青年，它已被理论认为，不良的抑制控制可能是由负面影响。如果得到支持，由负面情绪驱动的抑制控制受损，可能是一个可修改的神经认知治疗目标。目前的研究探讨了抑制控制是否介导了负面情绪和青少年饮食之间的关系。青少年（8-17岁）参加了一个食物去/不去神经认知任务，以测量抑制控制的佣金错误的百分比。一个综合的负面影响分数是从焦虑和抑郁的自我报告措施。一个实验室的自助餐餐建模，以模拟脱抑制饮食被用来衡量总的零食摄入量。横截面中介模型与偏差校正的自举置信区间（CI）进行了使用负面影响作为自变量，抑制控制作为中介，和摄入模式作为因变量。181名青年（13.2± 2.7岁; 55%女性; BMIz 0.6±1.0）进行了研究。总的去/不去佣金错误介导了负面情绪和总摄入量之间的关系（95%CI=[0.3，31.6]），但不是零食摄入量（95%CI=[-2.5，7.3]）。Food-Go块的佣金错误显著介导了负面情绪和总摄入量之间的关系（95%CI=[7.7，44.4]），但不是零食摄入量（95%CI=[-3.4，9.5]）。在中立-围棋区块上的佣金错误并没有显著地调节这些关系。负面情绪可能会导致抑制控制能力下降，以及对食物更强烈的接近倾向，增加了参与无抑制饮食的可能性。未来的研究应该确定，结合减少负面影响的方法，改善抑制控制是否有助于防止有抑郁或焦虑症状的青少年暴饮暴食。
Negative affect and poor inhibitory control are related to disinhibited eating behaviors in youth and may contribute to the development and/or maintenance of obesity. Although few studies have jointly examined these constructs in youth, it has been theorized that poor inhibitory control may be driven by negative affect. If supported, impaired inhibitory control, driven by negative affect, could represent a modifiable neurocognitive treatment target for disinhibited eating. The current study examined whether inhibitory control mediates the relationship between negative affect and eating among youth. Youth (8-17 years) participated in a Food Go/No-Go neurocognitive task to measure inhibitory control as the percentage of commission errors. A composite negative affect score was created from self-report measures of anxiety and depression. A laboratory buffet meal modeled to simulate disinhibited eating was used to measure total and snack food intake. Cross-sectional mediation models with bias-corrected bootstrap confidence intervals (CI) were conducted using negative affect as the independent variable, inhibitory control as the mediator, and intake patterns as dependent variables. One-hundred-eighty-one youths (13.2±2.7y; 55% female; BMIz 0.6±1.0) were studied. Total Go/No-Go commission errors mediated the relationship between negative affect and total intake (95%CI=[0.3, 31.6]), but not snack intake (95%CI=[−2.5, 7.3]). Commission errors for Food-Go blocks significantly mediated the relationship between negative affect and total intake (95%CI=[7.7, 44.4]), but not snack intake (95%CI=[−3.4, 9.5]). Commission errors on Neutral-Go blocks did not significantly mediate any of these relationships. Negative affect may lead to poorer inhibitory control as well as a stronger approach tendency toward food, increasing the likelihood of engaging in disinhibited eating. Future research should determine if, in combination with approaches to reduce negative affect, improved inhibitory control could help prevent overeating in youths with depressive or anxiety symptoms.
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