This study investigated whether the application of high definition transcranial DC stimulation (HD-tDCS) to the dorsolateral prefrontal cortex reduces cue-induced food craving when combined with food-specific inhibitory control training. Using a within-subjects design, participants (N = 55) received both active and sham HD-tDCS across 2 sessions while completing a Go/No-Go task in which foods were either associated with response inhibition or response execution. Food craving was measured pre and post stimulation using a standardized questionnaire as well as desire to eat ratings for foods associated with both response inhibition and response execution in the training task. Results revealed no effect of HD-tDCS on reducing state food craving or desire to eat. Due to the COVID-19 pandemic, we were unable to achieve our maximum preplanned sample size or our minimum desired Bayesian evidence strength across all a priori hypotheses; however 6 of the 7 hypotheses converged with moderate or stronger evidence in favor of the null hypothesis over the alternative hypothesis. We discuss the importance of individual differences and provide recommendations for future studies with an emphasis on the importance of cognitive interventions. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

中文翻译：

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没有证据表明前额叶HD-tDCS会影响线索诱导的食物渴望。

这项研究调查了将高清经颅DC刺激（HD-tDCS）应用于背外侧前额叶皮层，并结合特定于食物的抑制性控制训练，是否可以降低线索诱发的食物渴望。使用受试者内部设计，参与者（N = 55）在完成“通过/不通过”任务（其中食物与响应抑制或响应执行相关）的两个会话中同时接受了主动和假HD-tDCS。使用标准问卷在刺激前后测量食物渴望，并评估与训练任务中的反应抑制和反应执行相关的食物的进食等级。结果显示，HD-tDCS不能减少对州食物的渴望或进食欲望。由于COVID-19大流行，在所有先验假设中，我们无法达到最大的预先计划的样本量或最小的期望贝叶斯证据强度；但是，这7个假设中有6个与中等或较强的证据相融合，因此支持零假设而不是替代假设。我们讨论了个体差异的重要性，并为以后的研究提供了建议，重点是认知干预的重要性。（PsycInfo数据库记录（c）2020 APA，保留所有权利）。我们讨论了个体差异的重要性，并为以后的研究提供了建议，重点是认知干预的重要性。（PsycInfo数据库记录（c）2020 APA，保留所有权利）。我们讨论了个体差异的重要性，并为以后的研究提供了建议，重点是认知干预的重要性。（PsycInfo数据库记录（c）2020 APA，保留所有权利）。