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      Core, social and moral disgust are bounded: A review on cognitive and neural bases of repugnance in clinical disorders.

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          Abstract

          Disgust is a multifaceted experience that might affect several aspects of life. Here, we reviewed research on neurological and psychiatric disorders that are characterized by abnormal disgust processing to test the hypothesis of a shared neurocognitive architecture in the representation of three disgust domains: i) personal experience of 'core disgust'; ii) social disgust, i.e., motor and vocal expressions of disgust; iii) moral disgust, i.e., sensitivity to ethical violations. Our analysis provides some support to the shared neurocognitive hypothesis and suggests that the insula might be the "hub" structure linking the three domains of disgust sensitivity, while other brain regions may subserve specific facets of the multidimensional experience. Our review also suggests a role of monoamines in disgust processing. In particular, 5-HT appears to be implicated in core and moral disgust processing, while DA might be mainly involved in the processing of social disgust. Finally, our results are consistent with "neo-sentimentalist" theories of morality, which posits a causal role of affect in moral judgment.

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          Author and article information

          Journal
          Neurosci Biobehav Rev
          Neuroscience and biobehavioral reviews
          Elsevier BV
          1873-7528
          0149-7634
          May 12 2017
          Affiliations
          [1 ] Wolfson Centre for Clinical and Cognitive Neuroscience, School of Psychology, Bangor University, Bangor, Wales, United Kingdom; School of Psychology, University of Tasmania, Hobart, Tasmania, Australia. Electronic address: carmelo.vicario@utas.edu.au.
          [2 ] Wolfson Centre for Clinical and Cognitive Neuroscience, School of Psychology, Bangor University, Bangor, Wales, United Kingdom.
          [3 ] Department of Clinical Neurosciences, Hotchkiss Brain Institute, Calgary, AB, Canada.
          [4 ] Department of Psychology and Center for Studies and Research in Cognitive Neuroscience, University of Bologna, Cesena Campus, Cesena, Italy; IRCCS Fondazione Santa Lucia, Rome, Italy.
          Article
          S0149-7634(16)30816-8
          10.1016/j.neubiorev.2017.05.008
          28506923
          9322124b-cde2-4b8a-9e6c-577bc7d77650
          History

          Core disgust,Moral disgust,Neural correlates,Neurochemistry,Neurological populations,Personality disorders,Psychiatric populations,Social disgust

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