Dual interaction between heartbeat-evoked responses and stimuli
Dual interaction between heartbeat-evoked responses and stimuli
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DOI：
10.1016/j.neuroimage.2022.119817
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发表时间：
2022-12-20
期刊：
影响因子：
5.7
通讯作者：
Qin，Pengmin
中科院分区：
文献类型：
--
作者：
Zhang，Yihui;Zhang，Jianfeng;Qin，Pengmin
心跳诱发反应（HER）可以与外部刺激相互作用，并在形成感知，自我相关过程和情绪过程中发挥至关重要的作用。一方面，外界刺激可以调节HER。另一方面，HER能影响对外界刺激的认知加工。然而，这两个过程背后是否有相同的神经机制仍不清楚。在这里，我们调查了这种相互作用的机制，通过测量HER使用脑磁图（MEG）和两个名称知觉任务。具体来说，我们测试了（1）听到受试者自己的名字（SON）如何调节HER，以及（2）对SON的判断如何受到刺激前HER的影响。结果表明，HER和SON之间存在双重相互作用。特别地，SON可以针对在SON呈现之后从200到1200 ms发生的心跳来调制HER。此外，当刺激出现时，前刺激HER可以使SON判断产生偏差。重要的是，这两种类型的相互作用的MEG活动在空间和时间模式上不同，这表明它们可能与不同的神经通路相关。这些发现扩展了我们对脑-心相互作用的理解。
Heartbeat-evoked responses (HERs) can interact with external stimuli and play a crucial role in shaping perception, self-related processes, and emotional processes. On the one hand, the external stimulus could modulate HERs. On the other hand, the HERs could affect cognitive processing of the external stimulus. Whether the same neural mechanism underlies these two processes, however, remains unclear. Here, we investigated this interactive mechanism by measuring HERs using magnetoencephalography (MEG) and two name perception tasks. Specifically, we tested (1) how hearing a subject's own name (SON) modulates HERs and (2) how the judgment of an SON is biased by prestimulus HERs. The results showed a dual interaction between HERs and SON. In particular, SON can modulate HERs for heartbeats occurring from 200 to 1200 ms after SON presentation. In addition, prestimulus HERs can bias the SON judgment when a stimulus is presented. Importantly, MEG activities from these two types of interactions differed in spatial and temporal patterns, suggesting that they may be associated with distinct neural pathways. These findings extend our understanding of brain-heart interactions.