走向现实:对自然多模态情感视频的皮层电反应。

Psychophysiology Pub Date : 2024-06-01 Epub Date: 2024-01-25 DOI:10.1111/psyp.14526
Dean Sabatinelli, Andrew H Farkas, Matthew C Gehr
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摘要

以往的研究已经探究了情绪视频对外周生理测量和意识体验的影响,而本研究则将研究扩展到了皮层电测量,特别是稳态视觉诱发电位(ssVEP)。研究人员精心挑选了 45 段视频,这些视频代表了广泛的情感和中性内容,并以闪烁的边框呈现。这些视频采用连续的单镜头视角、自然的背景音乐,并排除了与专业电影相关的元素,以增强真实感。研究结果表明,在观看情感视频时,ssVEP 振幅会持续降低,这与短片的情感强度评级密切相关。这表明叙事视听刺激有可能追踪大脑皮层的动态情绪处理,为情感神经科学的研究提供了新的途径。研究结果凸显了使用逼真的视频刺激来研究人脑如何在一个提高生态有效性的范式中处理情绪事件的潜力。未来的研究可以通过扩大视频集、针对特定皮层网络和操纵叙事可预测性来进一步发展这一范式。总之,这项研究为使用逼真的视频刺激来研究情绪感知奠定了基础,并有可能拓展我们对现实世界中人脑情绪处理的理解。
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Moving toward reality: Electrocortical reactivity to naturalistic multimodal emotional videos.

While previous research has investigated the effects of emotional videos on peripheral physiological measures and conscious experience, this study extends the research to include electrocortical measures, specifically the steady-state visual-evoked potential (ssVEP). A carefully curated set of 45 videos, designed to represent a wide range of emotional and neutral content, were presented with a flickering border. The videos featured a continuous single-shot perspective, natural soundtrack, and excluded elements associated with professional films, to enhance realism. The results demonstrate a consistent reduction in ssVEP amplitude during emotional videos which strongly correlates with the rated emotional intensity of the clips. This suggests that narrative audiovisual stimuli have the potential to track dynamic emotional processing in the cortex, providing new avenues for research in affective neuroscience. The findings highlight the potential of using realistic video stimuli to investigate how the human brain processes emotional events in a paradigm that increases ecological validity. Future studies can further develop this paradigm by expanding the video set, targeting specific cortical networks, and manipulating narrative predictability. Overall, this study establishes a foundation for investigating emotional perception using realistic video stimuli and has the potential to expand our understanding of real-world emotional processing in the human brain.

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How effort-based self-interest motivation shapes altruistic donation behavior and brain responses. Beyond peaks and troughs: Multiplexed performance monitoring signals in the EEG. Reduced reward responsiveness and depression vulnerability: Consideration of social contexts and implications for intervention. Moving toward reality: Electrocortical reactivity to naturalistic multimodal emotional videos. Mapping the routes of perception: Hemispheric asymmetries in signal propagation dynamics.
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