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Antoine Marie, Ph.D.

Postdoctoral researcher
Center for Political Research (CEVIPOF), Sciences Po, Paris

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I am an academic political psychologist working at the crossroads of social psychology, political science and cognitive science. I conduct cross-cultural experiments, ethnographic observations and develop theory to better understand how people reason and communicate about divisive political topics. 

 

I'm also pretty active as a science popularizer in French and English on Instagram (pop science videos) and Substack—the new scientific blogging platform—where I talk about political psychology, social media, AI, apparently irrational beliefs, polarization, propaganda and foreign interferences, relationships between the sexes, and morality-related stuff.

 

As a researcher, I'm in particular interested in political misinformation and polarization: fake news and conspiracy theories endorsement and spread (what are their cognitive foundations? their social functions?); the benefits of AI against misinformation and polarization; hostility between groups (political, racial, sex groups); how to make our political discussions and group relations more productive; the "dark side" of morality (trade-off insensitivity, sacred values); the politicization of scientific topics; and the repression of speech on societal issues. My research emphasizes that humans are group-based and moralistic creatures, but also inclined to behave as 'intuitive activists' in contexts of threat and political conflict, even when they are not professional politicians.

 

I'm currently a postdoc researcher at the Center for Political Research (CEVIPOF), Sciences Po Paris, funded by an Agence Nationale de la Recherche "Access ERC" grant. I am operating as my own principal investigator on this grant, benefitting from Prof. Vin Arceneaux's mentorship. I submitted an ERC Starting grant in October 2025 and a MSCA grant in September 2026 proposing interventions against affective polarisation in France and the U.S.. Before that, I was a member of Institut Jean Nicod at Ecole Normale Supérieure, Paris, where I was working with Olivier Morin (CNRS), and a postdoc at Aarhus University, Denmark, under Michael Bang Petersen's supervision. I did my Ph.D. in cognitive science and political psychology at Ecole Normale Supérieure and Université Paris Cité (labs: CHArt and Institut Jean Nicod).

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I've received funding from the French Agence Nationale de la Recherche, the German Max Planck Institute, the French Fondation des sciences sociales, and the Danish Carlsberg Foundation, among others.​​

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I like amber beer (more than IPA), fixing bikes, tailoring second-hand clothes, artsy cinéma and documentaries, Thaï food, tennis, bouldering and a bunch of other stuff.

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