Awareness of cardiac/gastric interoception and its individual differences modulate the neural dynamics
Awareness of cardiac/gastric interoception and its individual differences modulate the neural dynamics
复制标题
心脏/胃内感受的意识及其个体差异调节神经动力学
DOI：
10.11225/cs.2022.065
复制
发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Ogawa Kenji
中科院分区：
文献类型：
--
作者：
Haruki Yusuke;Ogawa Kenji
从身体内部产生的感觉被称为内感。关于内感的实验研究主要利用心脏感觉(与心跳有关的感觉)，因为它易于非侵入性地测量。然而，在这种实践中，还不清楚内感是否是一种单峰感觉现象。在这里，我们展示了不同类型的现象内感唤起了一种特定的神经活动模式。具体地说，对心脏和胃(与胃相关)内感觉的关注激活了不同的大脑区域，并改变了这些区域的功能连接。此外，心脏/胃敏感性的个体差异与岛叶皮质的内在功能连接有关。内感子通道在其神经动力学和现象体验方面将是独特的。
Senses that arise from within the body are referred to as interoception. Empirical studies on interoception have primarily utilized cardiac sensation (senses related to one’s heartbeat) because of its easiness of measuring non-invasively. With this practice, however, it is unclear whether interoception is a unimodal sensory phenomenon. Here, we show that the different types of phenomenal interoception evoke a particular pattern of neural activities. Specifically, attention on cardiac and gastric (related to the stomach) interoception activated different brain regions and altered the functional connectivity in these regions. Furthermore, individual differences in cardiac/gastric sensitivity were associated with intrinsic functional connectivity of the insular cortex. Submodalities of interoception would be distinctive in their neural dynamics as well as phenomenal experience.