Gaëlle MARINTHE

@univ-paris8.fr

Department of Psychology/Laboratoire Parisien de Psychologie Sociale
Université Paris 8

Gaëlle MARINTHE


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https://researchid.co/gmarinthe
My work is in the field of social identity and intra- and inter-group relations. Primarily, it aims to understand what are the determinants of defensive or secure social identity (e.g., collective narcissism/secure identification, blind/constructive patriotism) and what are the consequences for attitudes towards the ingroup and its members, and towards outgroups. I am also interested in the moderators of these consequences (e.g., normative contexts, group status, threat perception).

EDUCATION

10/2015 – 01/2020: PhD in Social Psychology – University Rennes 2 (LP3C)
Defended on 07/01/2020, University Rennes 2
Title: Psychosocial approach of national symbols’ desecration: consequences on intergroup relations, implication of identification and patriotism
Supervisors: Rodolphe Kamiejski (Lecturer, Rennes 2 University); Benoit Testé (Professor, Rennes 2 University)
Thesis examiners: Constantina Badea (Professor, University Paris Nanterre University), Maja Becker (Lecturer, University Toulouse Jean Jaurès), Serge Guimond (Professor, University Clermont Auvergne)

2014-2015: Master’s degree – University Paris Nanterre
Dissertation title: Religion and Politics: Helping Intention, Ideologies and Intergroup Relations.
Supervisor: Rodolphe Kamiejski

RESEARCH INTERESTS

Social identity; collective narcissism; intragroup relations; intergroup relations; social identity threat
18

Scopus Publications

987

Scholar Citations

10

Scholar h-index

10

Scholar i10-index

Scopus Publications

  • Collective action hinders the increase in post-election trust among election losers: Longitudinal evidence from the 2024 UK election
    Gaëlle Marinthe, Fanny Lalot, Alice Kasper, Efisio Manunta, Genavee Brown
    Advances in Psychology, 2026
    Political trust is a key component of civic investment in democratic societies. However, the reasons for its fluctuations within the democratic process remain insufficiently understood. This study investigated longitudinal associations between electoral outcome, political collective action, and political trust. We hypothesized that collective action would moderate the impact of election results, such that trust would increase among engaged individuals whose preferred party won, but decrease among those whose preferred party lost. Using longitudinal data collected before and after the 2024 UK General Election (N = 543), we found a general increase in political trust following the election. This increase was weaker, although still significant, among participants who supported losing parties. Furthermore, we observed an interaction between collective action and local electoral outcome: Political trust increased for all participants except those who had greatly invested in collective action and whose local candidate had not been elected as Member of Parliament. These findings confirm that electoral processes foster political trust, but also suggest that unsuccessful collective action may hinder the typical increase in political trust following an election. They highlight the importance of both institutionalized and non-institutionalized political engagement in shaping trust, with implications for understanding how democratic participation can strengthen—or undermine—support for the political system.
  • Collective action among the extremes? Relations between political ideology, political extremism, emotions, and collective action
    Gaëlle Marinthe, Alice Kasper, Romain Veillé, Fanny Lalot
    Political Psychology, 2025
    Past research has highlighted the central role of ideology and political values in collective action. This research aims to determine whether, in addition to political ideology, political extremism can promote collective action. Arguing that political extremism may promote political activism per se, independently of its ideological content, we hypothesized an asymmetric U‐shaped relationship between political ideology and collective action, with emotions (anger, fear, and hope) acting as mediators. We conducted two studies in the context of two real‐world social movements in France. Study 1 (N = 1386) examined collective action against COVID‐19 restrictions, a movement that defended typical right‐wing values. Study 2 (N = 418) examined collective action against pension reform, a movement that defended values typical of the left. In both studies, we found that the congruent political ideology (right‐wing in Study 1 and left‐wing in Study 2) and political extremism were both associated with greater intentions (Studies 1 and 2) and greater participation (Study 2) in collective action. Anger partially mediated the relationship between political extremism and collective action in both studies. Overall, our results call for considering political extremism in addition to the left/right dimension of political ideology in order to better understand engagement in collective action.
  • Social judgement of defensive and secure social identities among advantaged and disadvantaged groups
    Gaëlle Marinthe, Peggy Chekroun, Vincent Dru, Mélanie Kader-Issack, Clément Vallée, et al.
    Group Processes and Intergroup Relations, 2025
    This research integrates social judgement and social identity theories to examine evaluations of defensive (narcissistic) and secure social identity (vs. lack of identification) expressed by targets with varying group statuses (advantaged vs. disadvantaged). Across three studies (total N = 2,915), we manipulated target group status and forms of identity. In socioeconomic groups (Study 1), an advantaged target with a defensive identity was deemed assertive, while a disadvantaged counterpart was perceived as moral. Unexpectedly, in ethnocultural groups (Studies 2–3), the disadvantaged target expressing a defensive identity was judged equally or more assertive than the advantaged target. Notably, defensive identity from a disadvantaged target consistently garnered higher moral judgement than from an advantaged target. These results highlight that defensive identity can receive positive evaluations and confer elevated status. Nonetheless, we observed differential evaluation strategies depending on intergroup settings, suggesting system justification in socioeconomic groups versus ingroup favouritism in U.S. ethnic groups.
  • Yes, we can (but for different reasons): Collective narcissism is linked to different values but similar pro-ingroup collective action tendencies among disadvantaged and advantaged ethnic groups
    Gaëlle Marinthe, Aleksandra Cislak, Samantha Stronge, Mikey Biddlestone, Flavio Azevedo, et al.
    British Journal of Social Psychology, 2025
    Collective narcissism, a belief that one's group is exceptional and entitled to special treatment but underappreciated by others, is related to important social and political outcomes but has been predominantly studied in advantaged groups. The present research compares the motivational correlates (through values) of collective narcissism in ethnic groups of different status (advantaged and disadvantaged) and explores its associations with attitudes towards, and intention to engage in collective action. Three studies examined these processes in different national and intergroup contexts (total N = 16,275). Overall, ethnic collective narcissism was linked to self‐protective values (power, and less consistently, conservation) in advantaged groups but to universalism in disadvantaged groups. Moreover, in both advantaged and disadvantaged groups, ethnic collective narcissism was related to more positive attitudes towards, and intentions of pro‐ingroup actions but not to attitudes towards (other) disadvantaged groups (i.e., intergroup solidarity). These studies suggest that collective narcissism may be associated with different motivations, yet linked to similar intergroup attitudes among advantaged and disadvantaged groups.
  • When Less Is More: Defensive National Identity Predicts Sacrifice of Ingroup Profit to Maximize the Difference Between Groups
    Bjarki Gronfeldt, Aleksandra Cislak, Gaëlle Marinthe, Aleksandra Cichocka
    Social Psychological and Personality Science, 2024
    We propose that defensive forms of identity (i.e., nationalism and national narcissism) can harm the nation through a tendency to maximize the difference between own and other groups in resource allocation. We test this hypothesis by adopting a classic social psychological paradigm, the Tajfel’s matrices, to real-life scenarios designed in the COVID-19 context. We captured maximizing the difference as a preference for one’s nation being allocated more medical resources relative to other countries, but at the expense of absolute ingroup profit. In Studies 1 and 2, defensiveness in national identity predicted this counterproductive strategy that ultimately benefits neither ingroup nor outgroup. In experimental Study 3, inducing ingroup disadvantage led to a greater tendency to maximize the difference. The results provide evidence that defensive national identity might be liked to support for policies that offer a positive intergroup comparison, but simultaneously harm one’s own ingroup.
  • Predicting vaccination hesitancy: The role of basic needs satisfaction and institutional trust
    Gaëlle Marinthe, Genavee Brown, Mioara Cristea, Maja Kutlaca
    Vaccine, 2024
  • Defensive national identity relates to support for collective violence, in contrast to secure national identity, in a sample of displaced Syrian diaspora members
    Ramzi Abou-Ismail, Bjarki Gronfeldt, Gaelle Marinthe
    International Journal of Intercultural Relations, 2024
  • We're All the Same: Collective Narcissists' Cross- National Support for Putin and Russian Military Attacks
    Genavee Brown, Gaëlle Marinthe
    International Review of Social Psychology, 2024
    National narcissism is associated with support for nationalist and anti-democratic leaders and decisions in one’s own country. We hypothesize that it might also relate to more favorable judgments of outgroup nationalist leaders and actions, even if the latter may pose a threat to the ingroup. Using the context of the Russian attack on Ukraine, we hypothesize that people with a higher level of national narcissism would be more supportive of Russian attacks, Russian President Vladimir Putin, and the Russian people. This may be due to a higher perception of belief similarity to Putin and Russians. We also considered the moderating role of the explicit target of the attack (Ukraine vs. ingroup). We tested our hypotheses in two studies (Study 1: N = 339 French; Study 2: N = 400 Americans). In both studies, national narcissism was related to a judgment of the attack (on Ukraine or the ingroup) as less immoral and to a better opinion of Putin. These effects were mediated by perceived belief similarity. In both studies however, these less negative judgments of the attack and of Putin did not extend to Russian people. Our results highlight that national narcissists are inclined to support a nationalist outgroup leader and their violent actions, although these may ultimately harm the ingroup.
  • Mobilising IDEAS in the COVID-19 Pandemic: Anti-Lockdown Actions and the Identity-Deprivation-Efficacy-Action-Subjective Well-Being Model
    Fanny Lalot, Gaëlle Marinthe, Alice Kasper, Dominic Abrams
    Journal of Social and Political Psychology, 2023
    We tested how well the Identity-Deprivation-Efficacy-Action-Subjective-wellbeing (IDEAS) model predicts citizens’ intentions to engage in collective action opposing their government, and their subjective well-being. Representative samples from Scotland, Wales, and the county of Kent in England were surveyed during the COVID-19 pandemic in October 2020 (N = 1,536). Results largely support our preregistered hypotheses, confirming that the IDEAS model offers a valid explanatory framework for how relative deprivation predicts both collective action opposing one’s government and levels of subjective well-being. In the case of collective action, there were significant effects of collective relative deprivation (cognitive and affective) and collective efficacy on social change beliefs, which in turn positively predicted collective action intentions. The role of national identification was more nuanced, revealing both negative indirect effects via collective efficacy and relative deprivation, and a positive indirect effect via political orientation. Findings also suggest interesting directions for future research on national identification.
  • Don’t burn our flag: patriotism, perceived threat, and the impact of desecrating a national symbol on intergroup attitudes
    Gaëlle Marinthe, Benoit Testé, Rodolphe Kamiejski
    Current Psychology, 2023
    Desecration of national symbols is a recurring societal phenomenon that can lead to highly defensive reactions from some citizens, especially on the part of those expressing a strong attachment to the nation. In this paper, we investigated the effects of blind and constructive patriotism when faced with an ingroup (vs. outgroup) national flag burning on ingroup bias, taking into consideration the mediating role of perceived threat. In two studies (N = 252), the level of blind patriotism predicted stronger ingroup bias—due to more negative evaluation of visible minorities and/or more positive evaluation of the ingroup—when another ingroup member burnt an ingroup (vs. outgroup) flag. This effect was partly mediated by a greater threat to the group’s image perceived by blindly patriotic people when the ingroup (vs. outgroup) flag was burnt (Study 2). Study 2 also highlighted a main effect of the symbol: ingroup bias was stronger when the ingroup (vs. outgroup) flag was burnt. We discuss the implications of our findings with respect to the role played by modes of national attachment and the consequences of desecrating symbols.
  • Understanding identity processes in support for reactionary and progressive social movements among advantaged and disadvantaged groups: The role of collective narcissism and secure ingroup identity
    Gaëlle Marinthe, Aleksandra Cichocka, Aleksandra Cislak, Natasha Alexander‐Grose, Flavio Azevedo
    European Journal of Social Psychology, 2022
  • Antecedents and consequences of COVID-19 conspiracy beliefs: A systematic review
    Valerie van Mulukom, Lotte J. Pummerer, Sinan Alper, Hui Bai, Vladimíra Čavojová, et al.
    Social Science and Medicine, 2022
  • “The Chinese Virus”: How COVID-19’s Transmission Context and Fear Affect Negative Attitudes Toward Chinese People
    Genavee Brown, Gaelle Marinthe
    Peace and Conflict, 2022
  • Do it for others! The role of family and national group social belongingness in engaging with COVID-19 preventive health behaviors
    Gaëlle Marinthe, Genavee Brown, Thibault Jaubert, Peggy Chekroun
    Journal of Experimental Social Psychology, 2022
  • Investigating the identification-prejudice link through the lens of national narcissism: The role of defensive group beliefs
    Paul Bertin, Gaëlle Marinthe, Mikey Biddlestone, Sylvain Delouvée
    Journal of Experimental Social Psychology, 2022
  • MALLEABILITY OF LAÏCITÉ: PEOPLE WITH HIGH SOCIAL DOMINANCE ORIENTATION USE LAÏCITÉ TO LEGITIMIZE PUBLIC PRAYER BY CATHOLICS BUT NOT BY MUSLIMS
    Current Research in Social Psychology, 2022
  • Looking out for myself: Exploring the relationship between conspiracy mentality, perceived personal risk, and COVID-19 prevention measures
    Gaëlle Marinthe, Genavee Brown, Sylvain Delouvée, Daniel Jolley
    British Journal of Health Psychology, 2020
  • Flags on fire: Consequences of a national symbol’s desecration for intergroup relations
    Gaëlle Marinthe, Juan Manuel Falomir-Pichastor, Benoit Testé, Rodolphe Kamiejski
    Group Processes and Intergroup Relations, 2020

RECENT SCHOLAR PUBLICATIONS

  • Collective action hinders the increase in post-election trust among election losers: Longitudinal evidence from the 2024 UK election
    G Marinthe, F Lalot, A Kasper, E Manunta, G Brown
    advances. in/psychology 1, e411811 , 2026
    2026
  • Mouton noir pour nuits blanches (black sheep effect ; Marques et al., 1988)
    G Marinthe
    Les 20 petites histoires des grandes théories de la psychologie sociale, 227-237 , 2025
    2025
  • Collective action among the extremes? Relations between political ideology, political extremism, emotions, and collective action
    G Marinthe, A Kasper, R Veillé, F Lalot
    Political Psychology , 2025
    2025
    Citations: 4
  • Social Judgement of Defensive and Secure Social Identities Among Advantaged and Disadvantaged Groups
    G Marinthe, P Chekroun, V Dru, M Kader-Issack, C Vallée, P Mollaret
    Group Processes & Intergroup Relations , 2025
    2025
    Citations: 1
  • Yes, we can (but for different reasons): Collective narcissism is linked to different values but similar pro‐ingroup collective action tendencies among disadvantaged and …
    G Marinthe, A Cislak, S Stronge, M Biddlestone, F Azevedo, A Kasper, ...
    British Journal of Social Psychology 64 (1), e12790 , 2025
    2025
    Citations: 9
  • Focus sur l'impact de l'appartenance sociale sur les comportements préventifs pendant la pandémie de COVID-19
    G Marinthe
    Traité de psychologie sociale: La science des interactions humaines, 551-552 , 2024
    2024
  • Predicting vaccination hesitancy: The role of basic needs satisfaction and institutional trust
    G Marinthe, G Brown, M Cristea, M Kutlaca
    Vaccine 42 (16), 3592-3600 , 2024
    2024
    Citations: 5
  • Defensive national identity relates to support for collective violence, in contrast to secure national identity, in a sample of displaced Syrian diaspora members
    R Abou-Ismail, B Gronfeldt, G Marinthe
    International Journal of Intercultural Relations 99, 101954 , 2024
    2024
    Citations: 8
  • We’re All the Same: Collective Narcissists’ Cross-National Support for Putin and Russian Military Attacks
    G Brown, G Marinthe
    International Review of Social Psychology 37 (1) , 2024
    2024
    Citations: 10
  • When Less is More: Defensive National Identity Predicts Sacrifice of Ingroup Profit to Maximise the Difference Between Groups
    B Gronfeldt, A Cislak, G Marinthe, A Cichocka
    Social Psychological and Personality Science , 2023
    2023
    Citations: 21
  • Mobilising IDEAS in the COVID-19 Pandemic: Anti-Lockdown Actions and the Identity-Deprivation-Efficacy-Action-Subjective Well-Being Model
    F Lalot, G Marinthe, A Kasper, D Abrams
    Journal of Social and Political Psychology 11 (1), 145-166 , 2023
    2023
    Citations: 2
  • Understanding identity processes in support for reactionary and progressive social movements among advantaged and disadvantaged groups: The role of collective narcissism and …
    G Marinthe, A Cichocka, A Cislak, N Alexander‐Grose, F Azevedo
    European Journal of Social Psychology 52 (7), 1047-1063 , 2022
    2022
    Citations: 39
  • “The Chinese virus”: How COVID-19’s transmission context and fear affect negative attitudes toward Chinese people.
    G Brown, G Marinthe
    Peace and Conflict: Journal of Peace Psychology 28 (2), 162 , 2022
    2022
    Citations: 13
  • Antecedents and consequences of COVID-19 conspiracy beliefs: A systematic review
    V van Mulukom, LJ Pummerer, S Alper, H Bai, V Čavojová, J Farias, ...
    Social Science & Medicine, 114912 , 2022
    2022
    Citations: 513
  • Malleability of Laïcité: People with High Social Dominance Orientation Use Laïcité to Legitimize Public Prayer by Catholics but not by Muslims
    M Cohu, G Marinthe, A Kasper, B Testé, C Maisonneuve
    Current Research in Social Psychology 31 , 2022
    2022
    Citations: 2
  • Investigating the identification-prejudice link through the lens of national narcissism: The role of defensive group beliefs
    P Bertin, G Marinthe, M Biddlestone, S Delouvée
    Journal of Experimental Social Psychology 98, 104252 , 2022
    2022
    Citations: 80
  • Do it for others! The role of family and national group social belongingness in engaging with COVID-19 preventive health behaviors
    G Marinthe, G Brown, T Jaubert, P Chekroun
    Journal of experimental social psychology 98, 104241 , 2022
    2022
    Citations: 40
  • Don’t Burn our Flag: Patriotism, Perceived Threat, and the Impact of Desecrating a National Symbol on Intergroup Attitudes
    G Marinthe, B Testé, R Kamiejski
    Current Psychology , 2021
    2021
    Citations: 15
  • Flags on fire: Consequences of a national symbol’s desecration for intergroup relations
    G Marinthe, JM Falomir-Pichastor, B Testé, R Kamiejski
    Group Processes & Intergroup Relations 23 (5), 744-760 , 2020
    2020
    Citations: 10
  • Approche psycho-sociale des dégradations de symboles nationaux: conséquences sur les relations intergroupes, implication de l’identification et des patriotismes
    G Marinthe
    Université Rennes 2 , 2020
    2020
    Citations: 2

MOST CITED SCHOLAR PUBLICATIONS

  • Antecedents and consequences of COVID-19 conspiracy beliefs: A systematic review
    V van Mulukom, LJ Pummerer, S Alper, H Bai, V Čavojová, J Farias, ...
    Social Science & Medicine, 114912 , 2022
    2022
    Citations: 513
  • Looking out for Myself: Exploring the Relationship Between Conspiracy Mentality, Perceived
    G Marinthe, G Brown, S Delouvée, D Jolley
    British Journal of Health Psychology , 2020
    2020
    Citations: 213
  • Investigating the identification-prejudice link through the lens of national narcissism: The role of defensive group beliefs
    P Bertin, G Marinthe, M Biddlestone, S Delouvée
    Journal of Experimental Social Psychology 98, 104252 , 2022
    2022
    Citations: 80
  • Do it for others! The role of family and national group social belongingness in engaging with COVID-19 preventive health behaviors
    G Marinthe, G Brown, T Jaubert, P Chekroun
    Journal of experimental social psychology 98, 104241 , 2022
    2022
    Citations: 40
  • Understanding identity processes in support for reactionary and progressive social movements among advantaged and disadvantaged groups: The role of collective narcissism and …
    G Marinthe, A Cichocka, A Cislak, N Alexander‐Grose, F Azevedo
    European Journal of Social Psychology 52 (7), 1047-1063 , 2022
    2022
    Citations: 39
  • When Less is More: Defensive National Identity Predicts Sacrifice of Ingroup Profit to Maximise the Difference Between Groups
    B Gronfeldt, A Cislak, G Marinthe, A Cichocka
    Social Psychological and Personality Science , 2023
    2023
    Citations: 21
  • Don’t Burn our Flag: Patriotism, Perceived Threat, and the Impact of Desecrating a National Symbol on Intergroup Attitudes
    G Marinthe, B Testé, R Kamiejski
    Current Psychology , 2021
    2021
    Citations: 15
  • “The Chinese virus”: How COVID-19’s transmission context and fear affect negative attitudes toward Chinese people.
    G Brown, G Marinthe
    Peace and Conflict: Journal of Peace Psychology 28 (2), 162 , 2022
    2022
    Citations: 13
  • We’re All the Same: Collective Narcissists’ Cross-National Support for Putin and Russian Military Attacks
    G Brown, G Marinthe
    International Review of Social Psychology 37 (1) , 2024
    2024
    Citations: 10
  • Flags on fire: Consequences of a national symbol’s desecration for intergroup relations
    G Marinthe, JM Falomir-Pichastor, B Testé, R Kamiejski
    Group Processes & Intergroup Relations 23 (5), 744-760 , 2020
    2020
    Citations: 10
  • Yes, we can (but for different reasons): Collective narcissism is linked to different values but similar pro‐ingroup collective action tendencies among disadvantaged and …
    G Marinthe, A Cislak, S Stronge, M Biddlestone, F Azevedo, A Kasper, ...
    British Journal of Social Psychology 64 (1), e12790 , 2025
    2025
    Citations: 9
  • Defensive national identity relates to support for collective violence, in contrast to secure national identity, in a sample of displaced Syrian diaspora members
    R Abou-Ismail, B Gronfeldt, G Marinthe
    International Journal of Intercultural Relations 99, 101954 , 2024
    2024
    Citations: 8
  • Predicting vaccination hesitancy: The role of basic needs satisfaction and institutional trust
    G Marinthe, G Brown, M Cristea, M Kutlaca
    Vaccine 42 (16), 3592-3600 , 2024
    2024
    Citations: 5
  • Collective action among the extremes? Relations between political ideology, political extremism, emotions, and collective action
    G Marinthe, A Kasper, R Veillé, F Lalot
    Political Psychology , 2025
    2025
    Citations: 4
  • Mobilising IDEAS in the COVID-19 Pandemic: Anti-Lockdown Actions and the Identity-Deprivation-Efficacy-Action-Subjective Well-Being Model
    F Lalot, G Marinthe, A Kasper, D Abrams
    Journal of Social and Political Psychology 11 (1), 145-166 , 2023
    2023
    Citations: 2
  • Malleability of Laïcité: People with High Social Dominance Orientation Use Laïcité to Legitimize Public Prayer by Catholics but not by Muslims
    M Cohu, G Marinthe, A Kasper, B Testé, C Maisonneuve
    Current Research in Social Psychology 31 , 2022
    2022
    Citations: 2
  • Approche psycho-sociale des dégradations de symboles nationaux: conséquences sur les relations intergroupes, implication de l’identification et des patriotismes
    G Marinthe
    Université Rennes 2 , 2020
    2020
    Citations: 2
  • Social Judgement of Defensive and Secure Social Identities Among Advantaged and Disadvantaged Groups
    G Marinthe, P Chekroun, V Dru, M Kader-Issack, C Vallée, P Mollaret
    Group Processes & Intergroup Relations , 2025
    2025
    Citations: 1
  • Collective action hinders the increase in post-election trust among election losers: Longitudinal evidence from the 2024 UK election
    G Marinthe, F Lalot, A Kasper, E Manunta, G Brown
    advances. in/psychology 1, e411811 , 2026
    2026
  • Mouton noir pour nuits blanches (black sheep effect ; Marques et al., 1988)
    G Marinthe
    Les 20 petites histoires des grandes théories de la psychologie sociale, 227-237 , 2025
    2025

GRANT DETAILS

2022: Grant obtained in the campaign of AAP Recherche 2022 of the ComUE Université Paris Lumières, for the project "VALeur sociale des Identités DÉfensive et Sécure (VALIDÉS) [Social value of defensive and secure identities]". Awarded amount: 8,608€.
Project leader: Gaëlle Marinthe. Collaborators: Peggy Chekroun (University Paris Nanterre), Vincent Dru (University Paris Nanterre), Patrick Mollaret (University Paris 8)

2019: Mobility grant from the Rennes doctoral pole for participation in the ISPP conference in Lisbon. Awarded amount: 500 €.

2016: Mobility grant from ADRIPS for a doctoral research internship at the University of Geneva. Awarded amount: 900 €.