See Hammad Sheikh, Ángel Gómez, and Scott Atran, “Empirical Evidence for the Devoted Actor Model,” Current Anthropology 57, no. S13 (2016), https://doi.org/10.1086/686221; Nafees Hamid et al., “Neuroimaging ‘will to fight’ for sacred values: an empirical case study with supporters of an Al Qaeda associate,” Royal Society Open Science 6, no. 6 (2019), https://doi.org/10.1098/rsos.181585; and Elaine Reese and Harvey Whitehouse, “The Development of Identity Fusion,” Perspectives on Psychological Science 16, no. 6 (2021): 1398–1411, https://doi.org/10.1177/1745691620968761

