Illuminating the conceptual structure of the space of moral violations with searchlight representational similarity analysis.
Illuminating the conceptual structure of the space of moral violations with searchlight representational similarity analysis.
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DOI：
10.1016/j.neuroimage.2017.07.043
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发表时间：
2017-10-01
期刊：
影响因子：
5.7
通讯作者：
Young L
中科院分区：
文献类型：
--
作者：
Wasserman EA;Chakroff A;Saxe R;Young L
描述道德违规的表征是如何组织的，认知和神经，是理解人们如何构思和判断它们的核心。过去的工作已经确定了代表道德相关特征和区分道德领域的大脑区域，但尚未对道德违规的神经表征在哪里以及在什么基础上组织进行更广泛的解释。与探照灯表征相似性分析，我们调查的类别成员资格驱动相似性的神经模式在道德判断的侵犯从两个关键的道德领域：伤害和纯度。表征在类似于心智化网络的区域网络中跨域汇聚。Harm和Purity违反表征分别在楔前叶和左额下回两个不同的区域收敛。检查道德领域内的子结构，伤害侵犯收敛于PC，无论子域（身体伤害，心理伤害），而纯度子域（病原体相关的侵犯，性相关的侵犯）收敛于不同的区域集-反映了行为数据的主成分分析中观察到的分离。此外，我们发现在这两个域编码区域内的道德相关功能表示的初步证据。目前的分析提供了一个案例研究，了解组织内的复杂的概念空间的道德违规是反映在组织的神经模式在整个皮层。
Characterizing how representations of moral violations are organized, cognitively and neurally, is central to understanding how people conceive and judge them. Past work has identified brain regions that represent morally relevant features and distinguish moral domains, but has not yet advanced a broader account of where and on what basis neural representations of moral violations are organized. With searchlight representational similarity analysis, we investigate where category membership drives similarity in neural patterns during moral judgment of violations from two key moral domains: Harm and Purity. Representations converge across domains in a network of regions resembling the mentalizing network. However, Harm and Purity violation representations respectively converge in different regions: precuneus (PC) and left inferior frontal gyrus (LIFG). Examining substructure within moral domains, Harm violations converge in PC regardless of subdomain (physical harms, psychological harms), while Purity subdomains (pathogen-related violations, sex-related violations) converge in distinct sets of regions – mirroring a dissociation observed in principal-component analysis of behavioral data. Further, we find initial evidence for representation of morally relevant features within these two domain-encoding regions. The present analyses offer a case study for understanding how organization within the complex conceptual space of moral violations is reflected in the organization of neural patterns across the cortex.
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影响因子：
3.2
作者：
Chavez RS;Heatherton TF
通讯作者：
Heatherton TF
影响因子：
4.1
作者：
Gray, Kurt;Schein, Chelsea;Ward, Adrian F.
通讯作者：
Ward, Adrian F.
影响因子：
5.7
作者：
Handjaras, Giacomo;Ricciardi, Emiliano;Pietrini, Pietro
通讯作者：
Pietrini, Pietro
影响因子：
3.7
作者：
Davis, Tyler;Poldrack, Russell A.
通讯作者：
Poldrack, Russell A.
DOI：
10.1196/annals.1440.011
发表时间：
2008-01-01
期刊：
YEAR IN COGNITIVE NEUROSCIENCE 2008
影响因子：
--
作者：
Buckner, Randy L.;Andrews-Hanna, Jessica R.;Schacter, Daniel L.
通讯作者：
Schacter, Daniel L.