Individualism, conservatism, and radicalism as criteria for processing political beliefs: a parametric fMRI study.
Individualism, conservatism, and radicalism as criteria for processing political beliefs: a parametric fMRI study.
复制标题
个人主义、保守主义和激进主义作为处理政治信仰的标准：参数化功能磁共振成像研究。
DOI：
10.1080/17470910902860308
复制
发表时间：
2009
影响因子：
2
通讯作者：
Grafman,Jordan
中科院分区：
文献类型：
--
作者：
Zamboni,Giovanna;Gozzi,Marta;Krueger,Frank;Duhamel,Jean-Rene;Sirigu,Angela;Grafman,Jordan
政治是人类独特的辩论能力的体现，决定，并就长期影响大型群体的决策达成共识。最近的神经影像学研究的政治集中在大脑区域和特定的政治行为之间的联系，采用政党或意识形态的联系作为标准来分类实验刺激或主题。然而，复杂的政治信仰（即，“政府应保护言论自由”）的评价标准仅从自由派到保守派。在这里，我们使用多维尺度和参数功能磁共振成像来确定人们使用哪些标准/维度来构建复杂的政治信仰，以及哪些大脑区域同时被激活。我们发现，三个独立的维度解释了一组表达政治信仰的陈述的可变性，每个维度都反映在一种独特的神经激活模式中：个人主义（内侧前额叶皮层和颞顶交界处），保守主义（背外侧前额叶皮层）和激进主义（腹侧纹状体和后扣带回）。我们发现的结构也被认为在自我-他人处理、矛盾情境下的社会决策和奖励预测中很重要。我们的研究结果扩展了目前对政治信仰结构的神经相关性的认识，这是人类融合成社会实体的能力的一个基本方面。
Politics is a manifestation of the uniquely human ability to debate, decide, and reach consensus on decisions affecting large groups over long durations of time. Recent neuroimaging studies on politics have focused on the association between brain regions and specific political behaviors by adopting party or ideological affiliation as a criterion to classify either experimental stimuli or subjects. However, it is unlikely that complex political beliefs (i.e., “the government should protect freedom of speech”) are evaluated only on a liberal-to-conservative criterion. Here we used multidimensional scaling and parametric functional magnetic resonance imaging to identify which criteria/dimensions people use to structure complex political beliefs and which brain regions are concurrently activated. We found that three independent dimensions explained the variability of a set of statements expressing political beliefs and that each dimension was reflected in a distinctive pattern of neural activation: individualism (medial prefrontal cortex and temporoparietal junction), conservatism (dorsolateral prefrontal cortex), and radicalism (ventral striatum and posterior cingulate). The structures we identified are also known to be important in self–other processing, social decision-making in ambivalent situations, and reward prediction. Our results extend current knowledge on the neural correlates of the structure of political beliefs, a fundamental aspect of the human ability to coalesce into social entities.