Understanding the neural correlates of risk-sensitive skin conductance responses can provide insights into their connection to emotional and cognitive processes. To provide insights into this connection, we studied the cortical correlates of risk-sensitive skin conductance peaks using electroencephalography. Fluctuations in skin conductance responses were elicited while participants played a threat-of-shock-card-game. Precise temporal information about skin conductance peaks were obtained by applying continuous decomposition analysis on raw electrodermal signals. Shortly preceding skin conductance peaks, we observed a decrease in oscillatory power in the frequency range between 3 and 17 Hz in occipitotemporal cortical areas. Atlas-based analysis indicated the left lingual gyrus as the source of the power decrease. The oscillatory power averaged across 3 to 17 Hz showed a significant negative relationship with the skin conductance peak amplitude. Our findings indicate a possible interaction between attention and threat perception.

中文翻译：

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风险背景下与皮肤电导反应相关的脑振荡活动

了解风险敏感的皮肤电导反应的神经相关性可以深入了解它们与情绪和认知过程的联系。为了深入了解这种联系，我们使用脑电图研究了风险敏感皮肤电导峰值的皮质相关性。当参与者玩电击威胁纸牌游戏时，会引起皮肤电导反应的波动。通过对原始皮肤电信号进行连续分解分析，获得了有关皮肤电导峰值的精确时间信息。在皮肤电导峰值之前不久，我们观察到枕颞皮质区域 3 至 17 Hz 频率范围内的振荡功率下降。基于图谱的分析表明左舌回是功率下降的来源。3 至 17 Hz 范围内的平均振荡功率与皮肤电导峰值幅度呈显着负相关。我们的研究结果表明注意力和威胁感知之间可能存在相互作用。