Illuminating the conceptual structure of the space of moral violations with searchlight representational similarity analysis
© 2017 Elsevier Inc. 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...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier BV
2021
|
| Online Access: | https://hdl.handle.net/1721.1/134359 |
| _version_ | 1826193570438053888 |
|---|---|
| author | Wasserman, EA Chakroff, A Saxe, R Young, L |
| author_facet | Wasserman, EA Chakroff, A Saxe, R Young, L |
| author_sort | Wasserman, EA |
| collection | MIT |
| description | © 2017 Elsevier Inc. 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. |
| first_indexed | 2024-09-23T09:41:12Z |
| format | Article |
| id | mit-1721.1/134359 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:41:12Z |
| publishDate | 2021 |
| publisher | Elsevier BV |
| record_format | dspace |
| spelling | mit-1721.1/1343592022-04-01T17:10:42Z Illuminating the conceptual structure of the space of moral violations with searchlight representational similarity analysis Wasserman, EA Chakroff, A Saxe, R Young, L © 2017 Elsevier Inc. 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. 2021-10-27T20:04:36Z 2021-10-27T20:04:36Z 2017 2019-10-03T18:16:31Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/134359 en 10.1016/J.NEUROIMAGE.2017.07.043 NeuroImage Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier BV PMC |
| spellingShingle | Wasserman, EA Chakroff, A Saxe, R Young, L Illuminating the conceptual structure of the space of moral violations with searchlight representational similarity analysis |
| title | Illuminating the conceptual structure of the space of moral violations with searchlight representational similarity analysis |
| title_full | Illuminating the conceptual structure of the space of moral violations with searchlight representational similarity analysis |
| title_fullStr | Illuminating the conceptual structure of the space of moral violations with searchlight representational similarity analysis |
| title_full_unstemmed | Illuminating the conceptual structure of the space of moral violations with searchlight representational similarity analysis |
| title_short | Illuminating the conceptual structure of the space of moral violations with searchlight representational similarity analysis |
| title_sort | illuminating the conceptual structure of the space of moral violations with searchlight representational similarity analysis |
| url | https://hdl.handle.net/1721.1/134359 |
| work_keys_str_mv | AT wassermanea illuminatingtheconceptualstructureofthespaceofmoralviolationswithsearchlightrepresentationalsimilarityanalysis AT chakroffa illuminatingtheconceptualstructureofthespaceofmoralviolationswithsearchlightrepresentationalsimilarityanalysis AT saxer illuminatingtheconceptualstructureofthespaceofmoralviolationswithsearchlightrepresentationalsimilarityanalysis AT youngl illuminatingtheconceptualstructureofthespaceofmoralviolationswithsearchlightrepresentationalsimilarityanalysis |