Marcelina Wiśniewska, Aleksandra Piejka, Tomasz Wolak, Dirk Scheele, Łukasz Okruszek
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引用次数: 0
摘要
虽然孤独与社会大脑网络的神经活动改变和心率变异性(HRV)降低有关,但目前尚不清楚这些影响是相关的还是平行的。因此,本研究旨在探讨孤独感与神经和副交感神经对社会刺激的反应之间的关系。63名参与者(18-35岁)接受了关于他们未来关系的操纵反馈,以诱导孤独(未来孤独,FA;n = 31)或归属感(Future Belong, FB, n = 32),并完成功能磁共振成像,同时测量HRV,在此期间呈现带有社交或非社交内容的情感图片。与我们之前的研究一致,在孤独诱导下,迷走神经柔韧性下降,负面情绪增加。此外,尽管神经活动在组间没有显著差异,但颞顶交界处对负性社会刺激和非社会刺激的神经反应与副交感神经反应呈正相关,且这种关系在FA组中更强。综上所述,这些结果表明,短暂的孤独感可能会破坏对环境需求的适应性反应,并对大脑-心脏的相互作用产生负面影响。
Loneliness - not for the faint of heart? Effects of transient loneliness induction on neural and parasympathetic responses to affective stimuli.
While loneliness has been associated with altered neural activity in social brain networks and reduced heart rate variability (HRV) in response to social stressors, it is still unclear whether these are related or parallel effects. Thus, the current study aimed to examine the relationship between loneliness and neural and parasympathetic responses to social stimuli by using an experimental induction of momentary loneliness. Sixty-three participants (18-35 y.o.) received manipulated feedback about their future relationships to induce either loneliness (Future Alone, FA; n = 31) or feelings of belonging (Future Belong, FB, n = 32) and completed a functional magnetic resonance imaging session with concomitant HRV measurement during which affective pictures with social or nonsocial content were presented. In line with our previous research, decreased vagal flexibility and more negative affect were observed in participants subjected to the loneliness induction. Furthermore, even though no significant between-group differences in neural activity were observed, the neural response to negative social vs nonsocial stimuli in the temporoparietal junction was positively associated with the parasympathetic response, and this relationship was stronger in the FA group. Taken together, these results suggest that transient feelings of loneliness may disrupt adaptive responding to environmental demands and negatively impact brain-heart interactions.
期刊介绍:
Social Neuroscience features original empirical Research Papers as well as targeted Reviews, Commentaries and Fast Track Brief Reports that examine how the brain mediates social behavior, social cognition, social interactions and relationships, group social dynamics, and related topics that deal with social/interpersonal psychology and neurobiology. Multi-paper symposia and special topic issues are organized and presented regularly as well.
The goal of Social Neuroscience is to provide a place to publish empirical articles that intend to further our understanding of the neural mechanisms contributing to the development and maintenance of social behaviors, or to understanding how these mechanisms are disrupted in clinical disorders.