Candia-Rivera Diego, de Vico Fallani Fabrizio, Boehme Rebecca, Salamone Paula C
Sorbonne Université, Paris Brain Institute (ICM), CNRS UMR7225, INRIA Paris, INSERM U1127, AP-HP Hôpital Pitié-Salpêtrière, Paris, France.
Center for Social and Affective Neuroscience, Linköping University Hospital, Linköping, Sweden.
Commun Biol. 2025 Jan 14;8(1):52. doi: 10.1038/s42003-024-07448-z.
Research on interoception has revealed the role of heartbeats in shaping our perceptual awareness and embodying a first-person perspective. These heartbeat dynamics exhibit distinct responses to various types of touch. We advanced that those dynamics are directly associated to the brain activity that allows self-other distinction. In our study encompassing self and social touch, we employed a method to quantify the distinct couplings of temporal patterns in cardiac sympathetic and parasympathetic activities with brain connectivity. Our findings revealed that social touch led to an increase in the coupling between frontoparietal networks and parasympathetic/vagal activity, particularly in alpha and gamma bands. Conversely, as social touch progressed, we observed a decrease in the coupling between brain networks and sympathetic dynamics across a broad frequency range. These results show how heartbeat dynamics are intertwined with brain organization and provide fresh evidence on the neurophysiological mechanisms of self-social touch distinction.
关于内感受的研究揭示了心跳在塑造我们的感知意识和体现第一人称视角方面的作用。这些心跳动态对各种类型的触摸表现出不同的反应。我们提出，这些动态与允许自我与他人区分的大脑活动直接相关。在我们涵盖自我触摸和社交触摸的研究中，我们采用了一种方法来量化心脏交感神经和副交感神经活动中的时间模式与大脑连接之间的独特耦合。我们的研究结果表明，社交触摸导致额顶叶网络与副交感神经/迷走神经活动之间的耦合增加，特别是在α和γ波段。相反，随着社交触摸的进行，我们观察到在很宽的频率范围内，大脑网络与交感神经动态之间的耦合减少。这些结果表明了心跳动态如何与大脑组织相互交织，并为自我与社交触摸区分的神经生理机制提供了新的证据。
