Overlapping activity in anterior insula during interoception and emotional experience.
Overlapping activity in anterior insula during interoception and emotional experience.
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DOI：
10.1016/j.neuroimage.2012.05.012
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发表时间：
2012-08-01
期刊：
影响因子：
5.7
通讯作者：
Ochsner KN
中科院分区：
文献类型：
--
作者：
Zaki J;Davis JI;Ochsner KN
情绪的经典理论认为，对一个人的内部身体状态的意识（内感受）是情绪体验的关键组成部分。这一观点得到了间接的支持，数据表明，在内感受和情绪诱发过程中，大脑活动的模式相似，最重要的是在前岛叶。然而，没有研究直接比较参与者的这两种现象，因此尚不清楚内感受和情绪体验是否真正共享相同的功能神经结构。目前的研究通过检查同一人群中这两种现象的神经收敛来解决这一知识差距。在一项任务中，参与者监测自己的心跳;在另一项任务中，他们观看情感视频剪辑，并对自己对视频的情感反应进行评级。与先前的研究一致，心跳监测涉及一个跨越岛叶皮层和相邻的下额叶盖的限定区域。重要的是，当参与者评价自己的情绪时，这个与内感受相关的集群也参与其中，这里的活动与参与者情绪体验的试验强度相关。这些发现适用于群体水平和个体参与者水平的内感受皮层定位方法。总之，这些数据进一步阐明了前额叶的功能作用，并为身体意识和情绪之间的联系提供了新的见解。
Classic theories of emotion posit that awareness of one’s internal bodily states (interoception) is a key component of emotional experience. This view has been indirectly supported by data demonstrating similar patterns of brain activity—most importantly, in the anterior insula—across both interoception and emotion elicitation. However, no study has directly compared these two phenomena within participants, leaving it unclear whether interoception and emotional experience truly share the same functional neural architecture. The current study addressed this gap in knowledge by examining the neural convergence of these two phenomena within the same population. In one task, participants monitored their own heartbeat; in another task they watched emotional video clips and rated their own emotional responses to the videos. Consistent with prior research, heartbeat monitoring engaged a circumscribed area spanning insular cortex and adjacent inferior frontal operculum. Critically, this interoception-related cluster also was engaged when participants rated their own emotion, and activity here correlated with the trial-by-trial intensity of participants’ emotional experience. These findings held across both group-level and individual participant-level approaches to localizing interoceptive cortex. Together, these data further clarify the functional role of the anterior insula and provide novel insights about the connection between bodily awareness and emotion.
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影响因子：
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作者：
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