Ventromedial and dorsolateral prefrontal interactions underlie will to fight and die for a cause
Pretus, Clara (Institut Hospital del Mar d'Investigacions Mèdiques)
Hamid, Nafees (Department of Security and Crime Science, University College London, England)
Sheikh, Hammad (New School for Social Research (New York, Estats Units d'Amèrica))
Gómez, Ángel (Universidad Nacional de Educación a Distancia (Espanya). Departamento de Psicología Social y de las Organizaciones)
Ginges, Jeremy (New School for Social Research (New York, Estats Units d'Amèrica). Department of Psychology)
Tobeña, Adolf 1950- (Universitat Autònoma de Barcelona. Departament de Psiquiatria i de Medicina Legal)
Davis, Richard (University of Oxford. The Changing Character of War Centre)
Vilarroya Oliver, Óscar (Institut Hospital del Mar d'Investigacions Mèdiques)
Atran, Scott (Gerald Ford School of Public Policy and Institute for Social Research, University of Michigan,USA)
Universitat Autònoma de Barcelona. Departament de Psiquiatria i de Medicina Legal

Data:	2019
Resum:	Willingness to fight and die (WFD) has been developed as a measure to capture willingness to incur costly sacrifices for the sake of a greater cause in the context of entrenched conflict. WFD measures have been repeatedly used in field studies, including studies on the battlefield, although their neurofunctional correlates remain unexplored. Our aim was to identify the neural underpinnings of WFD, focusing on neural activity and interconnectivity of brain areas previously associated with value-based decision-making, such as the ventromedial prefrontal cortex (vmPFC) and the dorsolateral prefrontal cortex (dlPFC). A sample of Pakistani participants supporting the Kashmiri cause was selected and invited to participate in an functional magnetic resonance (fMRI) paradigm where they were asked to convey their WFD for a series of values related to Islam and current politics. As predicted, higher compared to lower WFD was associated with increased ventromedial prefrontal activity and decreased dorsolateral activity, as well as lower connectivity between the vmPFC and the dlPFC. Our findings suggest that WFD more prominently relies on brain areas typically associated with subjective value (vmPFC) rather than integration of material costs (dlPFC) during decision-making, supporting the notion that decisions on costly sacrifices may not be mediated by cost-benefit computation.
Ajuts:	Agencia Estatal de Investigación RTI2018-093550-B-I00
Nota:	Altres ajuts: This work was supported by the Minerva Program and the Air Force Office of Scientific Research of the U.S. Department of Defense (AFOSR FA9550-14-1-0030 DEF) and the BIAL Foundation (Grant #163/14).
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Costly sacrifices ; Will to fight and die ; Sacred values ; FMRI ; Functional connectivity
Publicat a:	Social cognitive and affective neuroscience, Vol. 14 (may 2019) , p. 569-577, ISSN 1749-5024

DOI: 10.1093/scan/nsz034
PMID: 31058987

9 p, 13.6 MB

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