Key Laboratory of Cognition and Personality, Ministry of Education, Southwest University, Chongqing, China.
Department of Educational Psychology, Research, and Evaluation, University of Missouri, St. Louis, USA.
Appetite. 2023 Dec 1;191:107069. doi: 10.1016/j.appet.2023.107069. Epub 2023 Oct 12.
Research suggests that social support has a protective effect on emotional health and emotionally induced overeating. Women are especially more sensitive to benefits from social support when facing eating problems. Although it has been demonstrated that social support can affect the neural processes of emotion regulation and reward perception, it is unclear how social support alters synergistic patterns in large-scale brain networks associated with negative emotions and overeating. We used a large sample of young women aged 17-22 years (N = 360) to examine how social support influences the synchrony of five intrinsic networks (executive control network [ECN], default mode network, salience network [SN], basal ganglia network, and precuneus network [PN]) and how these networks influence negative affect and overeating. Additionally, we explored these analyses in another sample of males (N = 136). After statistically controlling for differences in age and head movement, we observed significant associations of higher levels of social support with increased intra- and inter-network functional synchrony, particularly for ECN-centered network connectivity. Subsequent chain-mediated analyses showed that social support predicted overeating through the ECN-SN and ECN-PN network connectivity and negative emotions. However, these results were not found in men. These findings suggest that social support influences the synergistic patterns within and between intrinsic networks related to inhibitory control, emotion salience, self-referential thinking, and reward sensitivity. Furthermore, they reveal that social support and its neural markers may play a key role in young women's emotional health and eating behavior.
研究表明，社会支持对情绪健康和情绪诱发的暴饮暴食具有保护作用。女性在面临饮食问题时，尤其更容易从社会支持中受益。尽管已经证明社会支持可以影响情绪调节和奖励感知的神经过程，但尚不清楚社会支持如何改变与负面情绪和暴饮暴食相关的大规模大脑网络的协同模式。我们使用了一个由 17-22 岁的年轻女性组成的大样本（N=360），研究了社会支持如何影响五个内在网络（执行控制网络 [ECN]、默认模式网络、突显网络 [SN]、基底神经节网络和楔前叶网络 [PN]）的同步性，以及这些网络如何影响负面情绪和暴饮暴食。此外，我们在另一组男性样本（N=136）中探索了这些分析。在对年龄和头部运动的差异进行统计学控制后，我们观察到社会支持水平与内在和网络间功能同步性增加之间存在显著关联，特别是 ECN 为中心的网络连通性。随后的中介链分析表明，社会支持通过 ECN-SN 和 ECN-PN 网络连通性以及负面情绪来预测暴饮暴食。然而，这些结果在男性中并未发现。这些发现表明，社会支持影响与抑制控制、情绪突显、自我参照思维和奖励敏感性相关的内在网络的协同模式。此外，它们揭示了社会支持及其神经标志物可能在年轻女性的情绪健康和饮食行为中发挥关键作用。
