Terrorism as Parochial Altruism: Experimental Evidence

Zoey Reeve

Terrorism and Political Violence, 2021, vol. 33, issue 8, 1643-1666

Abstract: Drawing on the evolutionary approach, this paper proposes that certain universal cognitive mechanisms (parochial altruism) underlie engagement and involvement in terrorism. Parochial altruism is the tendency to perceive and behave in ways that favour ingroups and disfavour outgroups in light of particular intergroup cues, whilst incurring some kind of personal cost in order to effect that bias. New data is generated by implementing an experiment and using a student sample to investigate certain features of parochial altruism. Findings indicate that sensitivity to parochial altruism varies across individuals, according to sex, group size, and feelings of vulnerability. Some individuals are more sensitive to perceiving and responding to threatening outgroups, which is relevant to the radicalisation process. It is proposed that in certain conditions, such as the presence of radicalisation risk factors, those most sensitive to parochial altruism may be more open to perceptions of threat to the ingroup, extremist ideology, and more likely to engage in violent actions than others.

Date: 2021
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DOI: 10.1080/09546553.2019.1635121

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