Context-prosody interaction in sarcasm comprehension: A functional magnetic resonance imaging study
Context-prosody interaction in sarcasm comprehension: A functional magnetic resonance imaging study
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DOI：
10.1016/j.neuropsychologia.2022.108213
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发表时间：
2022-03-15
期刊：
影响因子：
2.6
通讯作者：
Sadato，Norihiro
中科院分区：
文献类型：
--
作者：
Nakamura，Tagiru;Matsui，Tomoko;Sadato，Norihiro
在谈话中，讽刺被认为是一种不协调的上下文，内容和韵律的话语。我们假设，韵律修改上下文内容不一致的效果。因此，我们在22名健康成年参与者中进行了一项功能性磁共振成像研究，其中包括听觉讽刺检测任务。参与者听了一段简短的对话，根据他们做了一件好事或坏事，他们的对话伙伴对此做出了积极的评论。当语境是积极的（与话语内容一致），积极的韵律降低了讽刺的评级，而消极的韵律提高了这一评级。当语境为负时，正韵律效应消失，而负韵律效应增加了讽刺的评价。因此，语境与内容的不一致是讽刺理解的主要决定因素，并通过韵律以依赖于语境的方式进行修改。神经影像学结果显示，语境内容不协调效应在小脑和心智化网络中显著，代表了在特定语境中说出的内容。在双侧杏仁核中观察到内容-韵律不协调效应，代表说话的方式。这些不协调效应之间的相互作用被发现在双侧背外侧前额叶皮层，延伸到额下回和显著性网络，包括前岛叶皮层和背内侧前额叶皮层的尾部。这些发现表明，两个不同的讽刺理解不协调检测系统是通过显着性网络整合在前额叶皮层。
During conversation, sarcasm is perceived as an incongruity between the context, content, and prosody of the utterance. We hypothesized that prosody modifies the context‒content incongruity effect. Thus, we conducted a functional magnetic resonance imaging study with an auditory sarcasm detection task in 22 healthy adult participants. The participants listened to a short conversation according to which they had done either a good or bad deed, about which their conversational partner made a positive comment. When the context was positive (congruent with the content of utterance), positive prosody lessened the sarcasm rating, whereas negative prosody enhanced this rating. When the context was negative, the positive prosody effect disappeared, while negative prosody increased the sarcasm rating. Thus, context‒content incongruity is the primary determinant of sarcasm comprehension; and is modified by prosody in a context-dependent manner. Neuroimaging results showed that the context‒content incongruity effect was notable in the cerebellum and the mentalizing network, representing what was uttered in a particular context. The content‒prosody incongruity effect was observed in the bilateral amygdala, representing the manner of utterance. The interaction between these incongruity effects was found in the bilateral dorsolateral prefrontal cortex, extending to the inferior frontal gyrus and the salience network, including the anterior insular cortex and the caudal part of the dorso-medial prefrontal cortex. These findings indicate that two distinct incongruity detection systems for sarcasm comprehension are integrated in the prefrontal cortices through the salience network.