Baquedano Constanza, Martinez-Pernia David, Soto Vicente, Rivera-Rei Álvaro, Zepeda Antonia, Vasquez-Rosati Alejandra, Guzmán-Lavín Eugenio J, Ugarte Carla, Cepeda-Benito Antonio, Lopez Vladimir, Silva Jaime R
Center for Social and Cognitive Neuroscience (CSCN), School of Psychology, Universidad Adolfo Ibañez, Santiago 7941169, Chile.
Laboratorio de Fenomenología Corporal, Villarrica 4930000, Chile.
Brain Sci. 2025 Feb 25;15(3):240. doi: 10.3390/brainsci15030240.
Exposure to visually appealing food items can enhance their subjective realism, leading to increased cravings, salivation, and automatic approach tendencies. Prior research suggests that brief mindfulness instructions promoting dereification-recognizing stimuli as transient mental events-can mitigate these automatic reactions. : This study assesses whether brief mindfulness instruction can mitigate automatic consumption tendencies induced by food advertisements, exploring the corresponding behavioral, physiological, and neurophysiological mechanisms. : Sixty participants were randomly assigned to two groups: one receiving brief mindfulness instruction and the other a non-dereifying control instruction while exposed to advertised foods. This was followed by an approach-avoidance task (AAT), during which behavioral data, salivary volume, event-related potentials (ERPs) from electroencephalogram recordings, and self-reports were collected. : The results showed no significant differences in approach behaviors between the groups. Hunger, food craving, and salivation levels increased uniformly in response to food cues for both groups. The N1, N2, P3, and late positive potential (LPP) ERPs remained unaltered by the instructions and consistent with the established AAT literature. Advertising heightened the appeal of neutral foods, as evidenced by increased N2, P3, and LPP responses. The brief mindfulness instruction failed to shield participants from the automatic responses elicited by food advertising, contrasting with the effects seen with non-advertised food.
接触视觉上吸引人的食物会增强其主观真实感，导致食欲增加、唾液分泌增多以及产生自动趋近倾向。先前的研究表明，促进去实体化（将刺激视为短暂的心理事件）的简短正念指导可以减轻这些自动反应。本研究评估简短的正念指导是否能减轻食品广告引发的自动消费倾向，并探究相应的行为、生理和神经生理机制。60名参与者被随机分为两组：一组接受简短的正念指导，另一组在接触广告食品时接受非去实体化的对照指导。随后进行趋近-回避任务（AAT），在此期间收集行为数据、唾液量、脑电图记录中的事件相关电位（ERP）以及自我报告。结果显示，两组之间的趋近行为没有显著差异。两组对食物线索的反应中，饥饿感、食物渴望和唾液分泌水平均一致增加。指导并未改变N1、N2、P3和晚期正电位（LPP）ERP，这与已有的AAT文献一致。广告增强了中性食物的吸引力，N2、P3和LPP反应增加证明了这一点。简短的正念指导未能使参与者免受食品广告引发的自动反应影响，这与非广告食品的效果形成对比。
