Facial expressions and complex IAPS pictures: Common and differential networks
Facial expressions and complex IAPS pictures: Common and differential networks
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DOI：
10.1016/j.neuroimage.2005.12.050
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发表时间：
2006-06-01
期刊：
影响因子：
5.7
通讯作者：
Liberzon, Israel
中科院分区：
文献类型：
--
作者：
Britton, Jennifer C.;Taylor, Stephan F.;Liberzon, Israel
研究情绪的神经影像学研究通常使用两种不同的视觉刺激形式，情绪的面部表情或情绪唤起的场景。然而，这些不同的刺激形式是否包含相同的过程仍然是一个重要的未解之谜。情绪的面部表情可能会引起更多的情绪识别/感知，而唤起性的图片可能会引起更直接的情绪体验。尽管存在这些差异，在不同的研究中已经报道了共同的激活区域，但很少有研究在同一受试者中对两种刺激格式的反应激活。在这项fMRI研究中，我们将BOLD的激活模式与面部情绪表达和来自国际情感图片系统（IAPS）的复杂情绪图片进行了比较，以确定这些刺激是否会激活相似或不同的大脑区域。健康的志愿者被动地观看具有特定情绪（快乐，悲伤，愤怒，恐惧，中性）的表情面部和IAPS图片块，与固定块交错。眼动、反应时间和离线主观评分（包括离散情绪、效价和觉醒）也被记录下来。人脸和IAPS图片都激活了类似的结构，包括杏仁核、海马后部、腹内侧前额叶皮层和视觉皮层。此外，与IAPS图片相比，具有表情的面孔更独特地激活了颞上回、脑岛和前扣带，尽管面孔的唤醒程度较低。在大多数情况下，这些区域会对所有特定的情绪做出反应；然而，有些区域只对一个子集有反应。(c) 2006爱思唯尔公司版权所有。
Neuroimaging studies investigating emotion have commonly used two different visual stimulus formats, facial expressions of emotion or emotionally evocative scenes. However, it remains an important unanswered question whether or not these different stimulus formats entail the same processes. Facial expressions of emotion may elicit more emotion recognition/perception, and evocative pictures may elicit more direct experience of emotion. In spite of these differences, common areas of activation have been reported across different studies, but little work has investigated activations in response to the two stimulus formats in the same subjects. In this fMRI study, we compared BOLD activation patterns to facial expression of emotions and to complex emotional pictures from the International Affective Picture System (IAPS) to determine if these stimuli would activate similar or distinct brain regions. Healthy volunteers passively viewed blocks of expressive faces and IAPS pictures balanced for specific emotion (happy, sad, anger, fear, neutral), interleaved with blocks of fixation. Eye movement, reaction times, and off-line subjective ratings including discrete emotion, valence, and arousal were also recorded. Both faces and IAPS pictures activated similar structures, including the amygdala, posterior hippocampus, ventromedial prefrontal cortex, and visual cortex. In addition, expressive faces uniquely activated the superior temporal gyros, insula, and anterior cingulate more than IAPS pictures, despite the faces being less arousing. For the most part, these regions were activated in response to all specific emotions; however, some regions responded only to a subset. (c) 2006 Elsevier Inc. All rights reserved.