Psychobiology of Extremist Violence<sup>1</sup>: The Comeback of Individuality — Oak Academic Publishing
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Psychobiology of Extremist Violence<sup>1</sup>: The Comeback of Individuality
Department of Psychiatry and Forensic Medicne, Institute of Neurosciences-UAB, School of Medicine, Universitat Autònoma Barcelona, Bellaterra Campus, Barcelona, Spain
1 Department of Psychiatry and Forensic Medicne, Institute of Neurosciences-UAB, School of Medicine, Universitat Autònoma Barcelona, Bellaterra Campus, Barcelona, Spain
Research on the psychological paths leading towards involvement in violent extremism and terrorism has not produced a consistent layout of traits describing recurrent dispositions or plausible vulnerabilities. Extremist/terrorizing violence can adopt many forms from lone-actor attacks to guerrilla actions and other war-like tactics, and such versatility defies unifying depictions. Advances achieved at identifying important elements of ingroup dynamics and commitment ties mediating the surge and activities of violent groups neglected individual factors. Recent research has re-established the relevance of individual temperament traits to explain the attraction, engagement and support to these combative coalitions and the different roles and involvement that people enact in them. This essay presents some of these research forefronts and proposes further integration between individuality-based measures with ingroup-related mechanisms when studying proneness to violent extremism. A merge between Personality and Forensic Psychology with Social Neuroscience appears as a particularly fruitful track to generate consistent advancement in the area.
Aidt, T., & Rauh, C. (2018). The Big Five Personality Traits and Partisanship in England. Electoral Studies, 54, 1-21. https://doi.org/10.1016/j.electstud.2018.04.017
Allport, G. (1954). The Nature of Prejudice. Reading, MA: Addison-Wesley.
Atran, S. (2003). Genesis of Suicide Terrorism. Science, 299, 1534-1539. https://doi.org/10.1126/science.1078854
Atran, S. (2021). The Psychology of Transnational Terrorism and Extreme Political Conflict. Annual Review of Psychology, 72, 471-501. https://doi.org/10.1146/annurev-psych-010419-050800
Atran, S., & Ginges, J. (2012). Religious and Sacred Imperatives in Human Conflict. Science, 336, 855-857. https://doi.org/10.1126/science.1216902
Atran, S., Axelrod, R., & Davis, R. (2007). Sacred Barriers to Conflict Resolution. Science, 317, 1039-1040. https://doi.org/10.1126/science.1144241
Atran, S., Sheikh, H., & Gómez, A. (2014). Devoted Actors Fight for Close Comrades and Sacred Cause. Proceedings of the National Academy of Sciences of the United States of America, 111, 17702-17703. https://doi.org/10.1073/pnas.1420474111
Baele, S. J. (2017). Lone-Actor Terrorists’ Emotions and Cognition: An Evaluation beyond Stereotypes. Political Psychology, 38, 449-468. https://doi.org/10.1111/pops.12365
Baele, S. J., Brace, L., & Coan, T. G. (2020). Uncovering the Far-Right Online Ecosystem: An Analytical Framework and Research Agenda. Studies in Conflict and Terrorism, in press. https://doi.org/10.1080/1057610X.2020.1862895
Baez, S., Herrera, E., García, A. M., Manes, F., Young, L., & Ibáñez, A. (2017). Outcome-Oriented Moral Evaluation in Terrorists. Nature Human Behavior, 1, Article No. 0118. https://doi.org/10.1038/s41562-017-0118
Bakker, E., & De Bon, R. (2016). Belgian and Dutch Jihadist Foreign Fighters (2012-2015): Characteristics, Motivations and Roles in the War in Syria and Iraq. Small Wars and Insurgencies, 27, 837-857. https://doi.org/10.1080/09592318.2016.1209806
Barceló, J. (2017). National Personality Traits and Regime Type: A Cross-National Study of 47 Countries. Journal of Cross-Cultural Psychology, 48, 195-216. https://doi.org/10.1177/0022022116678324
Bélanger, J. J., Moyano, M., Muhammad, H., Richardson, L., Lafrenière, M. A. K., McCaffery, P., Framand, K., & Nociti, N. (2019). Radicalization Leading to Violence: A Test of the 3N Model. Frontiers in Psychiatry, 10, 42. https://doi.org/10.3389/fpsyt.2019.00042
Bereczkei, T. (2015). The Manipulative Skill: Cognitive Devices and Their Neural Correlates Underlying Machiavellian’s Decision Making. Brain and Cognition, 99, 24-31. https://doi.org/10.1016/j.bandc.2015.06.007
Bergstrøm, H., Larmourb, S. R., & Farrington, D. P. (2018). The Usefulness of Psychopathy in Explaining and Predicting Violence: Discussing the Utility of Competing Perspectives. Aggression and Violent Behavior, 42, 84-95. https://doi.org/10.1016/j.avb.2018.07.006
Borum, R. (2014). Psychological Vulnerabilities and Propensities for Involvement in Violent Extremism. Behavioral Sciences and the Law, 32, 286-305. https://doi.org/10.1002/bsl.2110
Brandt, M., Evans, A. M., & Crawford, J. T. (2015). The Unthinking or Confident Extremist? Political Extremists Are More Likely than Moderates to Reject Experimenter-Generated Anchors. Psychological Science, 26, 189-202. https://doi.org/10.1177/0956797614559730
Bruneau, E. (2016). Understanding the Terrorist Mind. Cerebrum, 2016, 13-16.
Carlisi, C. O., Moffitt, T. E., Knodt, A. R., Harringto, H., Ireland, D., Melzer, T. R., Poulton, R., Ramrakh, S., Casp, A. I., Hariri, A. R., & Viding, E. (2020). Associations between Life-Course-Persistent Antisocial Behaviour and Brain Structure in a Population-Representative Longitudinal Birth Cohort. The Lancet Psychiatry, 7, 245-253. https://doi.org/10.1016/S2215-0366(20)30002-X
Chabrol, E., Van Leeuwen, N., Rodgers, R., & Séjourné, N. (2009). Contributions of Psychopathic, Narcissistic, Machiavellian and Sadistic Personality Traits to Juvenile Delinquency. Personality and Individual Differences, 47, 734-739. https://doi.org/10.1016/j.paid.2009.06.020
Chester, D. S. (2017). The Role of Positive Affect in Aggression. Current Directions in Psychological Science, 6, 366-370. https://doi.org/10.1177/0963721417700457
Chester, D. S., & DeWall, C. N. (2016). The Pleasure of Revenge: Retaliatory Aggression Arises from a Neural Imbalance toward Reward. Social Cognitive and Affective Neuroscience, 11, 1173-1182. https://doi.org/10.1093/scan/nsv082
Choi, J. K., & Bowles, S. (2007). The Coevolution of Parochial Altruism and War. Science, 318, 636-640. https://doi.org/10.1126/science.1144237
Cikara, M., & Van Bavel, J. J. (2014). The Neuroscience of Intergroup Relations. Perspectives on Psychological Science, 9, 245-274. https://doi.org/10.1177/1745691614527464
Corner, E., & Gill, P. (2015). A False Dichotomy? Mental Illness and Lone-Actor Terrorism. Law and Human Behavior, 39, 23-34. https://doi.org/10.1037/lhb0000102
Corner, E., Gill, P., & Mason, O. (2016). Mental Health Disorders and the Terrorist: A Research Note Probing Selection Effects and Disorder Prevalence. Studies in Conflict and Terrorism, 39, 560-568. https://doi.org/10.1080/1057610X.2015.1120099
Cristofori, I., Viola, V., Chau, A., Zhong, W. T., Krueger, F., Zamboni, G., & Grafman, J. (2017). The Neural Bases for Devaluing Radical Political Statements Revealed by Penetrating Traumatic Brain Injury. Social Cognitive and Affective Neuroscience, 10, 1038-1044. https://doi.org/10.1093/scan/nsu155
De Dreu, C. K. W., & Gross, J. (2019). Revisiting the Form and Function of Conflict: Neurobiological, Psychological and Cultural Mechanisms for Attack and Defense within and between Groups. Behavioral and Brain Sciences, 42, e116. https://doi.org/10.1017/S0140525X18002170
De Dreu, C. K. W., Greer, L. J., Handgraaf, M. J. J., Shalv, S., Van Kleef, G. A., Baas, M., Velden, F. S. T., Van Dijk, E., & Feith, S. W. W. (2010). The Neuropeptide Oxytocin Regulates Parochial Altruism in Intergroup Conflict among Humans. Science, 328, 1408-1411. https://doi.org/10.1126/science.1189047
De Dreu, C. K. W., Greer, L. L., Van Kleef, G. A., Shalvi, S., & Handgraaf, M. J. (2011). Oxytocin Promotes Human Ethnocentrism. Proceedings of the National Academy of Sciences of the United States of America, 108, 1262-1266. https://doi.org/10.1073/pnas.1015316108
De Dreu, C. K. W., Gross, J., Méderc, Z., Giffina, M., Prochazkova, E., Krikebb, J., & Columbus, S. (2018). In-Group Defense, Out-Group Aggression, and Coordination Failures in Intergroup Conflict. Proceedings of the National Academy of Sciences of the United States of America, 113, 10524-10529. https://doi.org/10.1073/pnas.1605115113
De Dreu, C. K. W., Pliskin, R., Rojek-Giffin, M., Meder, Z., & Gross, J. (2021). Political Games of Attack and Defense. Philosophical Transactions of Royal Society B, 376, 20200135. https://doi.org/10.1098/rstb.2020.0135
De Neve, J. E., Mikhaylov, S., Dawes, C. T., Christakis, N. A., & Fowler, J. H. (2013). Born to Lead? A Twin Design and Genetic Association Study of Leadership Role Occupancy. Leadership Quarterly, 24, 45-60. https://doi.org/10.1016/j.leaqua.2012.08.001
Decety, J., Pape, R., & Workman, C. I. (2018). A Mutilevel Social Neuroscience Perspective on Radicalization and Terrorism. Social Neuroscience, 13, 511-529. https://doi.org/10.1080/17470919.2017.1400462
Domínguez, D. J. F., van Nunspeet, F., Gupta, A., Eres, R., Louis, W. R., Decety, J., & Molenberghs, P. (2018). Lateral Orbitofrontal Cortex Activity Is Modulated by Group Membership in Situations of Justified and Unjustified Violence. Social Cognitive and Affective Neuroscience, 13, 739-755. https://doi.org/10.1080/17470919.2017.1392342
Duckitt, J., & Sibley, Ch. G. (2010). Right-Wing Authoritarianism and Social Dominance Orientation Differentially Moderate Intergroup Effects on Prejudice. European Journal of Personality, 24, 583-601. https://doi.org/10.1002/per.772
Egan, V., & Beadman, M. (2011). Personality and Gang Embeddedness. Personality and Individual Differences, 51, 748-753. https://doi.org/10.1016/j.paid.2011.06.021
Elbert, T., Schauer, M., & Moran, J. K. (2018). Two Pedals Drive the By-Cycle of Violence: Reactive and Appetitive Aggression. Current Opinion in Psychology, 19, 135-138. https://doi.org/10.1016/j.copsyc.2017.03.016
Federico, C. M. (2021). The Psychology of Political Polarization. 17-37.
Federico, C. M., Golec de Zavala, A., & Bu, W. (2021). Collective Narcissism as a Basis for Nationalism. PsyArxiv-Preprints (psyarxiv 05.14.21). https://doi.org/10.31234/osf.io/vezx4
Finkel, E. J., Bail, C. A., Cikara, M., Ditto, P. H., Iyengar, S., Klar, S., Mason, L., McGrath, M. C., Nyhan, B., Rand, D. G., Skitka, L. J., Tucker, J. A., Van Bavel, J. J., Wang, C. S., & Druckman, J. N. (2020). Political Sectarianism in America. Science, 370, 6516, 533-536. https://doi.org/10.1126/science.abe1715
Fredman, L. A., Bastian, B., & Swann Jr., W. B. (2017). God or Country? Fusion with Judaism Predicts Desire for Retaliation Following Palestinian Stabbing Intifada. Social Psychology and Personality Science, 8, 882-887. https://doi.org/10.1177/1948550617693059
Gambetta, D. (Ed.) (2006). Making Sense of Suicide Missions. New York: Oxford University Press. https://doi.org/10.1093/acprof:oso/9780199276998.001.0001
Gill, P., & Corner, E. (2017). There and Back Again: The Study of Mental Disorder and Terrorist Involvement. American Psychologist, 72, 231-241. https://doi.org/10.1037/amp0000090
Gill, P., & Horgan, J. (2013). Who Were the Volunteers? The Shifting Sociological and Operational Profile of 1240 Provisional Irish Republican Army Members. Terrorism and Political Violence, 25, 435-456. https://doi.org/10.1080/09546553.2012.664587
Gill, P., Horgan, J., Hunter, S. T., & Cushenberry, L. D. (2013). Malevolent Creativity in Terrorist Organizations. Journal of Creative Behavior, 47, 125-151. https://doi.org/10.1002/jocb.28
Ginges, J. (2019). The Moral Logic of Political Violence. Trends in Cognitive Science, 23, 1-3. https://doi.org/10.1016/j.tics.2018.11.001
Glenn, A. L., & Raine, A. (2014). Neurocriminology: Implications for the Punishment, Prediction and Prevention of Criminal Behavior. Nature Reviews Neuroscience, 15, 54-63. https://doi.org/10.1038/nrn3640
Glowacki, L., Wilson, M. L., & Wrangham, R. W. (2020). The Evolutionary Anthropology of War. Journal of Economic Behavior and Organization, 178, 963-982. https://doi.org/10.1016/j.jebo.2017.09.014
Golec de Zavala, A., Dyduch-Hazar, K., & Lantos, D. (2019). Collective Narcissism: Political Consequences of Investment of Self-Worth in the Ingroup’s Image. Advances in Political Psychology, 40, 37-74. https://doi.org/10.1111/pops.12569
Gómez, A., López-Rodríguez, L., Sheikh, H., Ginges, J., Wilson, L., Waziri, H., Vázquez, A., Davis, R., & Atran, S. (2017). The Devoted Actor’s Will to Fight and the Spiritual Dimension of Human Conflict. Nature Human Behaviour, 1, 673-679. https://doi.org/10.1038/s41562-017-0193-3
Gómez, A., Martínez, M., Martel, F. A., López-Rodríguez, L., Vázquez, A., Chinchilla, J., Paredes, B., Hettiarachchi, M., Hamid, N., & Swann, W. B. (2021). Why People Enter and Embrace Violent Groups. Frontiers in Psychology, 11, 614657. https://doi.org/10.3389/fpsyg.2020.614657
Gotzsche-Astrup, O. (2019). Personality Moderates the Relationship between Uncertainty and Political Violence: Evidence from Two Large U.S. Samples. Personality and Individual Differences, 132, 102-109. https://doi.org/10.1016/j.paid.2018.11.006
Grebe, N. M., Del Giudice, M., Emery Thompson, M., Nickels, N., Ponzie, D., Ziliolif, S., Maestripieri, D., & Gangestad, S. W. (2018). Testosterone, Cortisol, and Status-Striving Personality Features: A Review and Empirical Evaluation of the Dual-Hormone Hypothesis. Hormones and Behavior, 109, 25-37. https://doi.org/10.1016/j.yhbeh.2019.01.006
Hamid, N., Pretus, C., Atran, S., Crockett, M. J., Ginges, J., Sheikh, H., Tobeña, A., Carmona, S., Gómez, A., Davis, R., & Vilarroya, O. (2019). Neuroimaging “Will to Fight” for Sacred Values: An Empirical Case Study with Supporters of an Al Qaeda Associate. Royal Society-Open Science, 6, 181585. https://doi.org/10.1098/rsos.181585
Hansen, I. G. (2018). The Analytical Utility of Distinguishing Fighting and Dying. Behavioral and Brain Sciences, 41, e192. https://doi.org/10.1017/S0140525X18001772
Hibbing, J. R. (2021). The Securitarian Personality. New York: Oxford University Press. https://doi.org/10.1093/oso/9780190096489.001.0001
Hoffman, B. J., Woehr, D. J., Maldagen-Youngjohn, R., & Lyons, B. D. (2011). Great Man or Great Myth? A Quantitative Review of the Relationship between Individual Differences and Leader Effectiveness. Journal of Occupational and Organizational Psychology, 84, 347-381. https://doi.org/10.1348/096317909X485207
Horgan, J. (2014). The Psychology of Terrorism (2nd ed.). London: Routledge. https://doi.org/10.4324/9781315882246
Horgan, J., Shortland, N., Abbasciano, S., & Walsh, S. (2016). Actions Speak Louder than Words: A Behavioral Analysis of 183 Individuals Convicted for Terrorist Offenses in the US from 1995 to 2012. Journal of Forensic Sciences, 61, 1228-1237. https://doi.org/10.1111/1556-4029.13115
Humphreys, M., & Weinstein, J. M. (2008). Who Fights? The Determinants of Participation in Civil War. American Journal of Political Science, 52, 436-455. https://doi.org/10.1111/j.1540-5907.2008.00322.x
Jost, J. T. (2017). Ideological Asymmetries and the Essence of Political psychology. Political Psychology, 38, 167-208. https://doi.org/10.1111/pops.12407
Kobach, A., & Elbert, T. (2015). Sensitive Periods for Developing a Robust Trait of Appetitive Aggression. Frontiers in Psychiatry, 6, 144. https://doi.org/10.3389/fpsyt.2015.00144
Kobach, A., Nandi, C., Crombach, A., Bambonyé, M., Westner, B., & Elbert, T. (2015). Violent Offending Promotes Appetitive Aggression Rather than Post-Traumatic Stress: A Replication Study with Burundian Ex-Combatants. Frontiers in Psychiatry, 6, 1755. https://doi.org/10.3389/fpsyg.2015.01755
Krueger, A. B., & Malecková, J. (2009). Attitudes and Action: Public Opinions and International Terrorism. Science, 325, 1534-1536. https://doi.org/10.1126/science.1170867
Kruglanski, A. W., & Fishman, S. (2009). Psychological Factors in Terrorism and Counterterrorism: Individual, Group and Organizational Levels of Analysis. Social Issues and Policy Reviews, 3, 1-44. https://doi.org/10.1111/j.1751-2409.2009.01009.x
Kruglanski, A., Gelfand, M. J., Bélanger, J. J., Sheveland, A., Heteriachchi, M., & Gunaratna, R. (2014). The Psychology of Radicalization and Deradicalization: How Significance Quest Impacts Violent Extremism. Political Psychology, 35, 69-93. https://doi.org/10.1111/pops.12163
Kruglanski, A. W., Jasko, K., Chernikova, M., Dugas, M., & Webber, D. (2017). To the Fringe and Back: Violent Extremism and the Psychology of Deviance. American Psychologist, 72, 217-230. https://doi.org/10.1037/amp0000091
Lankford, A. (2013). The Myth of Martyrdom: What Really Drives Suicide Bombers, Rampage Shooter, and Other Self-Destructive Killers. London: Palgrave Macmillan. https://doi.org/10.1017/S0140525X13001581
Lankford, A. (2014). The Myth of Martyrdom: What Really Drives Suicide Bombers, Rampage Shooters, and Other Self-Destructive Killers. Behavioral and Brain Sciences, 37, 351-362. https://doi.org/10.1017/S0140525X13001581
Ligneul, R., Obeso, I., Ruff, C. C., & Dreher, J. C. (2016). Dynamical Representation of Dominance Relationships in the Human Rostromedial Prefrontal Cortex. Current Biology, 26, 3107-3116. https://doi.org/10.1016/j.cub.2016.09.015
Lischinsky, J. E., & Lin, D. (2020). Neural Mechanisms of Aggression across Species. Nature Neuroscience, 23, 1317-1328. https://doi.org/10.1038/s41593-020-00715-2
Littman, R., & Paluck, E. L. (2015). The Cycle of Violence: Understanding Individual Participation in Collective Violence. Political Psychology, 36, 79-99. https://doi.org/10.1111/pops.12239
Logan, M., Ligon, G., & Derrick, D. (2017). Applying an Organizational Framework to Examine Jihadi Organizations as an Industry. Homeland Security Affairs, 13, Article 6. https://www.hsaj.org/articles/14097
Lyons-Padilla, S., Gelfand, M. J., Mirahmadi, H., Farooq, M., & van Egmond, M. (2015). Belonging Nowhere: Marginalization & Radicalization Risk among Muslim Immigrants. Behavioral Science and Policy, 1, 1-12. https://doi.org/10.1353/bsp.2015.0019
McCauley, C., & Moskalenko, S. (2008). Mechanisms of Political Radicalization: Pathways toward Terrorism. Terrorism and Political Violence, 20, 415-433. https://doi.org/10.1080/09546550802073367
McCauley, C., & Moskalenko, S. (2017). Understanding Political Radicalization: The Two-Pyramids Model. American Psychologist, 72, 205-216. https://doi.org/10.1037/amp0000062
McDermott, R., Lopez, A. C., & Hatemi, P. K. (2016). An Evolutionary Approach to Political Leadership. Security Studies, 25, 677-698. https://doi.org/10.1080/09636412.2016.1220204
Merari, A. (2010). Driven to Death: Psychological and Social Aspects of Suicide Terrorism. New York: Oxford University Press.
Merari, A., Diamant, I., Bibi, A., Broshi, Y., & Zakin, G. (2009). Personality Characteristics of “Self Martyrs”/“Suicide Bombers” and Organizers of Suicide Attacks. Terrorism and Political Violence, 22, 87-101. https://doi.org/10.1080/09546550903409312
Mercier, H. (2018). How Gullible Are We? A Review of the Evidence from Psychology and Social Science. Review of General Psychology, 21, 103-122. https://doi.org/10.1037/gpr0000111
Molenberghs, P., Gapp, J., Wang, B., Louis, W. R., & Decety, J. (2016). Increased Moral Sensitivity for Outgroup Perpetrators Harming Ingroup Members. Cerebral Cortex, 26, 225-233. https://doi.org/10.1093/cercor/bhu195
Molenberghs, P., Ogilvie, C., Louis, W. R., Decety, J., Bagnall, J., & Bain, P. G. (2015). The Neural Correlates of Justified and Unjustified Killing: An fMRI Study. Social Cognitive and Affective Neuroscience, 10, 1397-1404. https://doi.org/10.1093/scan/nsv027
Moshagen, M., Hibig, B. E., & Zettler, I. (2018). The Dark Core of Personality. Psychological Review, 125, 656-688. https://doi.org/10.1037/rev0000111
Nam, H. H., Jost, J. T., Meager, M. R., & Van Bavel, J. J. (2021). Towards a Neuropsychology of Political Orientation: Exploring Ideology n Patients with Frontal and Midbrain Lesions. Philosophical Transactions of Royal Society B, 376, 20200137. https://doi.org/10.1098/rstb.2020.0137
Obaidi, M., Anjum, G., Lindstrom, J., Bergh, R., Celebi, E., & Baykal, M. (2020). The Role of Muslim Identity in Predicting Violent Behavioural Intentions to Defend Muslims. Group Processes & Intergroup Relations, 23, 1267-1282. https://doi.org/10.1177/1368430220920929
Obaidi, M., Bergh, R., Akrami, N., & Dovidio, J. F. (2021). The Personality of Extremists: Examining Violent and Non-Violent Defense of Muslims. https://doi.org/10.31234/osf.io/kry38
Obaidi, M., Bergh, R., Sidanius, J., & Thomsen, L. (2018). The Mistreatment of My People: Victimization by Proxy and Behavioral Intentions to Commit Violence among Muslims in Denmark. Political Psychology, 39, 577-593. https://doi.org/10.1111/pops.12435
Ortoleva, P., & Snowberg, E. (2015). Overconfidence in Political Behavior. American Economy Reviews, 105, 504-535. https://doi.org/10.1257/aer.20130921
Ostrosky, F., Borja, K. C., Rebollar, C. R., & Díaz Galván, K. X. (2011). Neuropsychological Profiles of Members of Organized Crime and Drug-Traffic Organizations. Research and Reports in Forensic Medical Science, 2, 19-30. https://doi.org/10.2147/RRFMS.S32352
Pape, R. (2005). Dying to Win: The Strategic Logic of Suicide Terrorism. New York: Random House. https://doi.org/10.1080/10803920500433997
Pavlović, T., & Wertag, A. (2021). Proviolence as a Mediator in the Relationship between the Dark Personality Traits and Support for Extremism. Personality and Individual Differences, 168, Article ID: 110374. https://doi.org/10.1016/j.paid.2020.110374
Pietrini, P., Guazzelli, M., Basso, G., Jaffe, K., & Grafman, J. (2000). Neural Correlates of Imaginal Aggressive Behavior Assessed by Positron Emission Tomography in Healthy Subjects. American Journal of Psychiatry, 157, 1772-1781. https://doi.org/10.1176/appi.ajp.157.11.1772
Pretus, C., Hamid, N., Sheikh, H., Ginges, J., Tobeña, A., Davis, R., Vilarroya, O., & Atran, S. (2018). Neural and Behavioral Correlates of Sacred Values and Vulnerability to Violent Extremism. Frontiers in Psychology, 9, 2462. https://doi.org/10.3389/fpsyg.2018.02462
Pretus, C., Hamid, N., Sheikh, H., Gómez, A., Ginges, J., Tobeña, A., Davis, R., Vilarroya, O., & Atran, S. (2019). Ventromedial and Dorsolateral Prefrontal Interactions Underlie “Will to Fight” for a Cause. Social Cognitive and Affective Neuroscience, 569-577. https://doi.org/10.1093/scan/nsz034
Rokeach, M. (1960). The Open and Closed Mind. New York: Basic Books.
Rollwage, M., Dolan, R. J., & Fleming, S. M. (2018). Metacognitive Failure as a Feature of Those Holding Radical Beliefs. Current Biology, 28, 4014-4021. https://doi.org/10.1016/j.cub.2018.10.053
Rosell, D. R., & Siever, L. J. (2015). The Neurobiology of Aggression and Violence. CNS Spectrums, 20, 254-279. https://doi.org/10.1017/S109285291500019X
Sageman, M. (2004). Understanding Terror Networks. Philadelphia, PA: University of Pennsylvania Press. https://doi.org/10.9783/9780812206791
Santamaria-Garcia, H. et al. (2021). Uncovering Social-Contextual and Individual Mental Health Predictors of Violence with Computational Inference. Patterns, 2, 100176. https://doi.org/10.1016/j.patter.2020.100176
Schulz, L., Rollwage, M., Dolan, R. J., & Fleming, S. M. (2020). Dogmatism Manifests in Lowered Information Search under Uncertainty. Proceedings of the National Academy of Sciences of the United States of America, 117, 31527-31534. https://doi.org/10.1073/pnas.2009641117
Schumann, S., Salman, N. L., Clemmow, C., & Gill, P. (2020). Does Cognitive Inflexibility Predict Violent Extremist Behaviour Intentions? A Registered Direct Replication Report of Zmigrod, Rentfrow & Robbins, 2019. Legal and Criminal Psychology. https://doi.org/10.1111/lcrp.12186
Schumpe, B. M., Bélanger, J. J., Moyano, M., & Nisa, C. F. (2018). The Role of Sensation Seeking in Political Violence: An Extension of the Significance Quest Theory. Journal of Personality and Social Psychology, 118, 743-761. https://doi.org/10.1037/pspp0000223
Schuurman, B. (2020). Research on Terrorism, 2007-2016: A Review of Data, Methods and Authorship. Terrorism and Political Violence, 32, 1011-1026. https://doi.org/10.1080/09546553.2018.1439023
Shortland, N. (2021). The Psychology of Terrorism. London: Taylor and Francis. https://doi.org/10.4324/9780429330742
Silke, A. (2008). Holy Warriors: Exploring the Psychological Processes of Jihadi Radicalization. European Journal of Criminology, 5, 99-123. https://doi.org/10.1177/1477370807084226
Swann Jr., W. B., Buhrmester, M. D., Gómez, A., Jetten, J., Bastian, B., Vázquez, A. et al. (2014). What Makes a Group Worth Dying for? Identity Fusion Fosters Perception of Familial Ties, Promoting Self-Sacrifice. Journal of Personality and Social Psychology, 106, 912-926. https://doi.org/10.1037/a0036089
Swann Jr., W. B., Jetten, J., Gómez, á., Whitehouse, H., & Bastian, B. (2012). When Group Membership Gets Personal: A Theory of Identity Fusion. Psychological Review, 119, 441-456. https://doi.org/10.1037/a0028589
Tajfel H (1982). Social Psychology of Intergroup Relations. Annual Reviews of Psychology, 33, 1-39. https://doi.org/10.1146/annurev.ps.33.020182.000245
Tobeña, A. (2004a). Individual Factors in Suicide Terrorism. Science, 304, 47-49. https://doi.org/10.1126/science.304.5667.47
Tobeña, A. (2004b). Mártires mortíferos: Biología del altruismo letal. Valencia: Valencia University Press (PUV)-Bromera Publish.
Tobeña, A. (2009). Lethal Altruists: Itineraries along the Dark Outskirts of Moralistic Prosociality. Annals of the New York Academy of Sciences, 1167, 5-15. https://doi.org/10.1111/j.1749-6632.2009.04542.x
Tobeña, A. (2012). Suicide Attack Martyrdoms: Temperament and Mindset of Altruistic Warriors. In B. Oakley, A. Knafo, G. Madhavan, & D. S. Wilson (Eds.), Pathological Altruism (pp. 207-244). New York: Oxford University Press.
Toner, K., Leary, M. R., Asher, M. W., & Jongman-Sereno, K. P. (2013). Feeling Superior Is a Bipartisan Issue: Extremity (Not Direction) of Political Views Predicts Perceived Belief Superiority. Psychological Science, 24, 2454-2462. https://doi.org/10.1177/0956797613494848
Valasik, M., & Phillips, M. (2017). Understanding Modern Terror and Insurgency through the Lens of Street Gangs: ISIS as a Case Study. Journal of Criminological Research, Policy and Practice, 3, 192-207. https://doi.org/10.1108/JCRPP-07-2016-0014
Van Prooijen, J. B., & Krouwel, A. P. M. (2017). Extreme Political Belief Predict Dogmatic Intolerance. Social Psychology and Personality Science, 8, 292-300. https://doi.org/10.1177/1948550616671403
Van Prooijen, J. B., & Krouwel, A. P. M. (2019). Psychological Features of Extreme Political Ideologies. Current Directions of Psychological Science, 28, 159-163. https://doi.org/10.1177/0963721418817755
Van Vugt, M. (2009). Sex Differences in Intergroup Competition, Aggression and Warfare: The Male Warrior Hypothesis. Annals of the New York Academy of Sciences, 1167, 124-134. https://doi.org/10.1111/j.1749-6632.2009.04539.x
Van Vugt, M., Hogan, R., & Kaiser, R. B. (2008). Leadership, Followership and Evolution: Some Lessons from the Past. American Psychologist, 63, 182-196. https://doi.org/10.1037/0003-066X.63.3.182
Victoroff, J. (2005). The Mind of the Terrorist: A Review and Critique of Psychological Approaches. Journal of Conflict Resolution, 49, 3-42. https://doi.org/10.1177/0022002704272040
Victoroff, J., Quota, S., Adelman, J. R., Celinska, B., Stern, N., Wilcox, R., & Sapolsky, R. M. (2011). Support for Religio-Political Aggression among Teenaged Boys in Gaza: Part II: Neuroendocrinological Findings. Aggressive Behavior, 37, 121-132. https://doi.org/10.1002/ab.20376
Wang, C. H. (2016). Personality Traits, Political Attitudes and Vote Choice: Evidence from the United States. Electoral Studies, 44, 26-34. https://doi.org/10.1016/j.electstud.2016.07.004
Whitehouse, H. (2018). Dying for the Group: Towards a General Theory of Extreme Self-Sacrifice. Behavioral and Brain Sciences, 41, e192. https://doi.org/10.1017/S0140525X18000249
Whitehouse, H., McQuinn, B., Buhrmester, M., & Swann Jr., W. B. (2017). Brothers in Arms: Libyan Revolutionaries Bond Like Family. Proceedings of the National Academy of Sciences of the United States of America, 111, 17783-17785. https://doi.org/10.1073/pnas.1416284111
Workman, C. I., Yoder, K. J., & Decety, J. (2020). The Dark Side of Morality: Neural Mechanisms Underpinning Moral Convictions and Support for Violence. AJOB Neuroscience, 11, 269-284. https://doi.org/10.1080/21507740.2020.1811798
Wrangham, R. W. (1999). Evolution of Coalitionary Killing. American Journal of Physical Anthropology, 110, 1-30. https://doi.org/10.1002/(SICI)1096-8644(1999)110:29+ 3.0.CO;2-E
Wrangham, R. W. (2019). The Goodness Paradox. New York: Pantheon-Penguin.
Wrangham, R. W., Wilson, M. L., & Muller, N. M. (2006). Comparative Rates of Violence in Chimpanzees and Humans. Primates, 47, 14-26. https://doi.org/10.1007/s10329-005-0140-1
Xiao, Y. J., & Van Bavel, J. J. (2012). See Your Friends Close and Your Enemies Closer: Social Identity and Identity Threat Shape the Representation of Physical Distance. Personality and Social Psychology Bulletin, 38, 959-972. https://doi.org/10.1177/0146167212442228
Yang, J., Zhang, H., Ni, J., De Dreu, C. K. W., & Ma, Y. (2020). Within-Group Synchronization in the Prefrontal Cortex Associates with INTERGROUP conflict. Nature Neuroscience, 23, 754-760. https://doi.org/10.1038/s41593-020-0630-x
Zamboni, M., Gozzi, M., Krueger, F., Duhamel, J. R., Sirigu, A., & Graham, J. (2009). Individualism, Conservatism, and Radicalism as Criteria for Processing Political Beliefs: A Parametric fMRI Study. Social Neuroscience, 4, 367-383. https://doi.org/10.1080/17470910902860308
Zhong, W., Cristofori, I., Bulbulia, J., Krueger, F., & Grafman, J. (2017). Biological and Cognitive Underpinnings of Religious Fundamentalism. Neuropsychologia, 100, 18-25. https://doi.org/10.1016/j.neuropsychologia.2017.04.009
Zmigrod, L., Eisenberg, I. W., Bisset, P. G., Robbins, T. W., & Poldrack, R. A. (2021). The Cognitive and Perceptual Correlates of Ideological Attitudes: A Data-Driven Approach. Philosophical Transactions of Royal Society B, 376, 20200424. https://doi.org/10.1098/rstb.2020.0424
Zmigrod, L., Rentfrow, P. J., & Robbins, T. W. (2018). Cognitive Underpinnings of Nationalistic Ideology in the Context of Brexit. Proceedings of the National Academy of Sciences of the United States of America, 115, E4532-E4540. https://doi.org/10.1073/pnas.1708960115
Zmigrod, L., Rentfrow, P. J., & Robbins, T. W. (2019). Cognitive Inflexibility Predicts Extremist Attitudes. Frontiers in Psychology, 10, 989. https://doi.org/10.3389/fpsyg.2019.00989