Infection, incest, and iniquity: investigating the neural correlates of disgust and morality.
Infection, incest, and iniquity: investigating the neural correlates of disgust and morality.
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DOI：
10.1162/jocn.2008.20109
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发表时间：
2008-09
影响因子：
3.2
通讯作者：
Kiehl KA
中科院分区：
文献类型：
--
作者：
Schaich Borg J;Lieberman D;Kiehl KA
厌恶，一种与避免有害物质有关的情绪，在许多行为研究中都与道德判断有关。然而，参与者在想到粪便和令人发指的罪行时会感到厌恶，这一事实并不一定表明同样的机制调节了这些反应。相反，人类可能有独立的神经和生理系统，指导不同领域的厌恶行为和判断。本研究采用功能磁共振成像（n = 50）和行为评估相结合的方法，探讨病原相关厌恶和道德厌恶的生物学同源性。我们提供的证据表明，与病原体相关的行为和社会道德行为会影响许多共同的以及独特的大脑网络。我们还研究了道德本身是否由不同的神经和行为子域组成。我们提供的证据表明，尽管乱伦和非性的不道德行为倾向于引发相似的道德错误评级，但它们在大脑网络中表现出明显的分离，同时仍然重叠。这些结果(i)支持厌恶的生物反应与不道德密切相关的观点，（ii）证明至少有三个不同的厌恶领域，（iii）强烈表明道德，像厌恶一样，不是一个统一的心理或神经现象。
Disgust, an emotion related to avoiding harmful substances, has been linked to moral judgments in many behavioral studies. However, the fact that participants report feelings of disgust when thinking about feces and a heinous crime does not necessarily indicate that the same mechanisms mediate these reactions. Humans might instead have separate neural and physiological systems guiding aversive behaviors and judgments across different domains. The present interdisciplinary study used functional magnetic resonance imaging (n = 50) and behavioral assessment to investigate the biological homology of pathogen-related and moral disgust. We provide evidence that pathogen-related and sociomoral acts entrain many common as well as unique brain networks. We also investigated whether morality itself is composed of distinct neural and behavioral subdomains. We provide evidence that, despite their tendency to elicit similar ratings of moral wrongness, incestuous and nonsexual immoral acts entrain dramatically separate, while still overlapping, brain networks. These results (i) provide support for the view that the biological response of disgust is intimately tied to immorality, (ii) demonstrate that there are at least three separate domains of disgust, and (iii) suggest strongly that morality, like disgust, is not a unified psychological or neurological phenomenon.
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作者：
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影响因子：
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