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Wim De Neys

@wimdeneys.bsky.social
359 followers 106 following 37 posts

Psychological scientist @ CNRS & University of Paris

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Reposted by Wim De Neys
Nicolas Beauvais @nicolasbeauvais.bsky.social · 07/09/2026
1/4 🧵 New paper out (open access!) with @wimdeneys.bsky.social Can people tell a strong argument from a weak one on the fly, or only once they stop to think? We find that people already have some intuitive sensitivity to argument strength, but deliberation helps a lot.
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Jérémie Beucler @jeremiebeucler.bsky.social · 27/08/2026
In this blog post with @wimdeneys.bsky.social, we discuss some of our recent research on dual-process theories; check it out if you're interested! bppblog.com/2026/08/27/w...
bppblog.com
When fast is right and slow is wrong (rethinking intuition and deliberation)
The article by Jérémie Beucler and Wim De Nys critiques dual-process theory, highlighting some of its simplifications. They argue that intuition can be sound and deliberation sometimes ineffective …
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Jérémie Beucler @jeremiebeucler.bsky.social · 07/05/2026
Very nice piece on our recent paper with @wimdeneys.bsky.social by @carlhendrick.substack.com 🙌 carlhendrick.substack.com/p/rethinking...
carlhendrick.substack.com
Rethinking Fast and Slow
New evidence suggests the standard dual process story undersells intuition
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Jérémie Beucler @jeremiebeucler.bsky.social · 20/04/2026
Are you thinking in vain? New paper with @zoepurcell.bsky.social, @luciecharlesneuro.bsky.social, @wimdeneys.bsky.social & @kobedesender.bsky.social 𝘛𝘩𝘪𝘯𝘬𝘪𝘯𝘨 𝘪𝘯 𝘝𝘢𝘪𝘯: 𝘈𝘯 𝘌𝘷𝘪𝘥𝘦𝘯𝘤𝘦 𝘈𝘤𝘤𝘶𝘮𝘶𝘭𝘢𝘵𝘪𝘰𝘯 𝘈𝘤𝘤𝘰𝘶𝘯𝘵 𝘰𝘧 𝘉𝘪𝘢𝘴𝘦𝘥 𝘙𝘦𝘢𝘴𝘰𝘯𝘪𝘯𝘨 🔗 osf.io/preprints/ps... A 🧵
a man hanging from a scale where on one side there are really heavy stereotypes, and on the other side very light base-rates, to illustrate base-rate neglect
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Wim De Neys @wimdeneys.bsky.social · 21/01/2026
New work led by @jeremiebeucler.bsky.social who used LLMs to estimate stereotype strength in base-rate items. Great tool to create new material ;-)
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Wim De Neys @wimdeneys.bsky.social · 07/01/2026
Fast and slow insight. New paper with @jeremiebeucler.bsky.social showing that good convergent thinking is driven by sound intuitions. Modelling work links this to a denser semantic memory structure among good intuitors.
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Wim De Neys @wimdeneys.bsky.social · 10/12/2025
Chat with David Cooper about our latest research on how humans and AI evaluate intuitive vs deliberative thinking podcasts.apple.com/ca/podcast/w...
podcasts.apple.com
Wim De Neys: Intuitive Vs. Deliberative Thinkers - December 9, 2025
Podcast Episode · The Last Show with David Cooper · 2025-12-10 · 11m
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Jérémie Beucler @jeremiebeucler.bsky.social · 27/11/2025
Our paper with @zoepurcell.bsky.social, @luciecharlesneuro.bsky.social, and @wimdeneys.bsky.social has been accepted at Behavior Research Methods! 🥳 Here is the updated preprint: osf.io/preprints/ps... Also, the baserater package is now on CRAN: cran.r-project.org/package=base... #psynomBRM
osf.io
OSF
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Jérémie Beucler @jeremiebeucler.bsky.social · 16/10/2025
10/10 Huge thanks to my great co-authors @zoepurcell.bsky.social , @luciecharlesneuro.bsky.social and @wimdeneys.bsky.social, and to my lab @lapsyde.bsky.social. Stay tuned for the computational modeling part! 🤓 You can access the preprint here: osf.io/preprints/ps...
osf.io
OSF
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Communications Psychology @commspsychol.nature.com · 07/10/2025
People and LLMs evaluate deliberative reasoning more favorably than intuitive thinking—even when both yield accurate results. This preference appears to be intuitive itself and has implications for how we assess others’ and AI advise. @wimdeneys.bsky.social www.nature.com/articles/s44...
nature.com
Humans and LLMs rate deliberation as superior to intuition on complex reasoning tasks - Communications Psychology
People and LLMs evaluate deliberative reasoning more favorably than intuitive thinking—even when both yield accurate results. This preference appears to be intuitive itself and has implications for how we assess others’ and AI advise.
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Wim De Neys @wimdeneys.bsky.social · 30/09/2025
Paper is now published: www.nature.com/articles/s44...
nature.com
Humans and LLMs rate deliberation as superior to intuition on complex reasoning tasks - Communications Psychology
People and LLMs evaluate deliberative reasoning more favorably than intuitive thinking—even when both yield accurate results. This preference appears to be intuitive itself and has implications for how we assess others’ and AI advise.
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Jorge Peña 🇵🇸 @jorgeapenas.bsky.social · 22/09/2025
📢 Apply to our (2-year) research fellowships at @iast.fr Join a multidisciplinary, interdisciplinary, transdisciplinary, and indisciplinary group of scholars in Toulouse, walkable/cyclable pink city of chocolatines in the South of France. Deadline: November 15, 2025. www.iast.fr/research-fel...
iast.fr
Research Fellowships
Each year, IAST invites applications for post-doctoral Research Fellowships, which offer candidates an opportunity to devote themselves full-time to their research at the start of their careers. Fello...
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Jean-François Bonnefon @jfbonnefon.bsky.social · 20/09/2025
It's hiring season at @iast.fr! - 2y research postdoc contract - Full autonomy, you are your own PI - Awesome multidisciplinary environment - All social and behavioral sciences welcome - Seed funding for projects and workshops - Gorgeous city in the south of France www.iast.fr/research-fel...
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Nicolas Beauvais @nicolasbeauvais.bsky.social · 21/08/2025
Happy to share that my first paper is out in Thinking & Reasoning! 📄📢 With Aikaterini Voudouri, @boissinesther.bsky.social & @wimdeneys.bsky.social we show that deliberate reasoning helps not just to correct but also to justify intuitive judgments. 🔗Full paper: shorturl.at/JTeTi Quick thread below!
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Wim De Neys @wimdeneys.bsky.social · 07/08/2025
Moses, fast and slow ! @jeremiebeucler.bsky.social interesting evidence for sound intuiting (and reflection). My take home: Don't use semantic illusions as a pure test of cognitive reflection.
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Wim De Neys @wimdeneys.bsky.social · 19/06/2025
"Defining deliberation for dual-process models of reasoning" is now published. Free online access to the published Nat Rev Psy version: rdcu.be/erM5T
rdcu.be
Defining deliberation for dual-process models of reasoning
Nature Reviews Psychology - Dual-process models propose that reasoning involves intuition and deliberation, but the conceptualization of deliberation remains unclear. In this Perspective, De Neys...
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Nina Franiatte @ninafraniatte.bsky.social · 17/06/2025
🚨Check out our new paper with @boissinesther.bsky.social, Alexandra Delmas & @wimdeneys.bsky.social in Acta Psych! 📹 We show that video debiasing training can boost reasoning accuracy - not just deliberation, but intuition too! 🔓 Open access: www.sciencedirect.com/science/arti... Quick summary👇
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Wim De Neys @wimdeneys.bsky.social · 08/05/2025
New forthcoming perspective paper in Nature Reviews Psychology: “Defining System 2 deliberation for dual-process models” preprint: osf.io/preprints/ps... (1/5)
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Flavia Mancini @flaviamancini.bsky.social · 08/03/2025
How to push back against the rise of endless administrative burden in academia?
academic.oup.com
On the responsibilities of intellectuals and the rise of bullshit jobs in universities
You may never have considered yourself to be one. Why would you? But if you’re reading this, there is more than a likelihood that you are one. If you’re a
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Wim De Neys @wimdeneys.bsky.social · 18/02/2025
New preprint: “Folk Thinking, Fast and Slow: Intuitive Preference for Deliberation in Humans and Machines” Pop culture often praises intuition (“Blink”, Steve Jobs). But do we really trust it? Across 13 studies, we find a strong intuitive preference for deliberation. tinyurl.com/8r54dmyn (1/6)
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Nicolas Beauvais @nicolasbeauvais.bsky.social · 20/01/2025
Short blog post about our work with Matthieu Raoelison & @wimdeneys.bsky.social for the Tango Horizon European project! 🧠🤖 👉 tango-horizon.eu/2025/01/16/h...
tango-horizon.eu
How insights about human reasoning can help us design better AI systems | tango-horizon.eu
TANGO BLOGPOST The rise of everyday AI Artificial intelligence (AI) is seamlessly integrated into our daily lives—from the algorithms that find the best rou ...
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Jean-Baptiste André @jbaptistandre.bsky.social · 14/01/2025
📢 Come study cognitive science in Paris! The Master’s program in Cognitive Science at @ENS_ULM, @psl_univ, and @EHESS_fr is now accepting applications for the 2025-2026 academic year. 🗓 Deadline: March 13, 2025 💻 Apply here: master-cognitive-science.ens.psl.eu/en/applicati...
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Nick Byrd, Ph.D. @byrdnick.com · 09/12/2024
📣 I'm #hiring a 3-year #postdoc! - Live anywhere in the United States! - Improve #decisionMaking and #wellbeing with #quantitative #cogSci. Share the application URL here and elsewhere.👇 geisinger.wd5.mywork... Letters can be sent to me with "R-69755" in the subject line.
Job descriptionQualificationsThe institution's history and unique benefits.What to submit when applying to the job
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Esther Boissin @boissinesther.bsky.social · 13/12/2024
Want to challenge your biases and boost your logical reasoning? 🚀 Check out this fantastic website by my amazing colleagues @wimdeneys.bsky.social and @ninafraniatte.bsky.social. Dive into engaging videos that make logical reasoning accessible to everyone. Available in English and French.
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Nina Franiatte @ninafraniatte.bsky.social · 12/12/2024
🧠 Cogitum: Train your logical reasoning! As part of our research, @wimdeneys.bsky.social and I developed video-based training to boost sound reasoning 🎥 And we need your help to test it! Try it anonymously (& share it!) in French or English here: cogitum-site.powerappsportals.com/homePage
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Nick Byrd, Ph.D. @byrdnick.com · 23/11/2024
I’m sharing talks and posters from this weekend’s @SJDM-tweets.bsky.social conference. First, a talk about the #jobMarket — by the way, I’m hiring a 3-year #postdoc researcher who does quantitative #decisionScience and can #workFromHome in the U.S.: geisinger.wd5.myworkdayjobs.com/GeisingerExt... …
Job descriptionQualificationsAbout GeisingerWhat to submit when applying to the job
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Wim De Neys @wimdeneys.bsky.social · 23/11/2024
Yes, we've got the iconic background photo thing down.
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Wim De Neys @wimdeneys.bsky.social · 18/10/2024
Let's give this a try ;-) go.bsky.app/TBS14hQ
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David Rand @dgrand.bsky.social · 12/09/2024
🚨Out in Science!🚨 Conspiracy beliefs famously resist correction, ya? WRONG: We show brief convos w GPT4 reduce conspiracy beliefs by ~20%! -Lasts over 2mo -Works on entrenched beliefs -Tailored AI response rebuts specific evidence offered by believers www.science.org/doi/10.1126/...
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Dead McCoy 💀🖖 @tedmccoy.bsky.social · 13/07/2024
universities: we bought all new software to do the same thing you already do now with ease. It completely sucks and cost us 13 million dollars.
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Wim De Neys @wimdeneys.bsky.social · 21/06/2024
New paper with Katerina Voudouri and Michal Bialek showing that when people face risky decisions, they can intuitively determine which choices have better expected value and avoid loss aversion without careful deliberation. www.sciencedirect.com/science/arti...
sciencedirect.com
Fast & slow decisions under risk: Intuition rather than deliberation drives advantageous choices
Would you take a gamble with a 10% chance to gain $100 and a 90% chance to lose $10? Even though this gamble has a positive expected value, most peopl…
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Wim De Neys @wimdeneys.bsky.social · 22/04/2024
"Adieu Bias!": New paper with Nina Franiatte et al. in which we replicated previous intuitive debiasing findings in la douce France. Thanks openAI for the awesome title suggestion ;-)
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Brian Nosek @briannosek.bsky.social · 27/03/2024
Oh my. Danny was an inspiration to a generation of social-behavioral scientists and transformed our understanding of decision-making. I can no longer answer the question "who is the most important living psychologist?" with any confidence. www.washingtonpost.com/obituaries/2...
washingtonpost.com
Daniel Kahneman, Nobel-winning economist, dies at 90
He found that people rely on shortcuts that often lead them to make wrongheaded decisions that go against their own best interest.
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Jay Van Bavel, PhD @jayvanbavel.bsky.social · 27/03/2024
Dr. Kahneman’s research debunked the notion of “homo economicus,” the “economic man” who was considered a rational being who acts out of self-interest. Instead, people rely on intellectual shortcuts that often go against their own best interest. www.washingtonpost.com/obituaries/2...
washingtonpost.com
Daniel Kahneman, Nobel-winning economist, dies at 90
He found that people rely on shortcuts that often lead them to make wrongheaded decisions that go against their own best interest.
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David Rand @dgrand.bsky.social · 22/02/2024
🚨WP🚨 We test 9 online samples and find clear tradeoffs between attentiveness and representativeness - which sample is best depends on research q and priorities. For social/political qs I rec Bovitz/Lucid, for complex designs I rec Cloud/Prolific osf.io/preprints/ps...
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Nick Byrd, Ph.D. @byrdnick.com · 07/02/2024
Are people intuitive Bayesians? More so when *experiencing* than when merely *reading* statistics. So can poor wording explain part of this difference? Yup. When wording was improved, people were 10x more likely to accept the Bayesian answer to textbook probability tests! doi.org/10.1016/j.co...
Pages 1 and 2 showing the title, authors, abstract, and introduction.Page 3 showing the improved wording and its rationale as well as page 4 showing the methods of the first (of seven) experiments.Page 5 showing Table 2, which reported the dramatic increase in Bayesian responses in improved wording conditions compared to standard wording conditions. This also shows page 18 with the meta-analytic odds ratio of 10.6 (p < 0.001, d = 1.3) for all seven experiments.
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David Rand @dgrand.bsky.social · 07/02/2024
🚨New WP🚨 Field experiments with 33 million FB users & 75k Twitter users: Ads prompting users to think about accuracy reduce misinformation sharing! Accuracy prompts offer platforms a content-neutral approach that is scalable and preservers user autonomy osf.io/preprints/ps...
Abstract
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Jean-François Bonnefon @jfbonnefon.bsky.social · 07/01/2024
We are opening two tenure-track positions (please repost!) Human Evolutionary Social Science Computational Social Science Come join a truly interdisciplinary department, within a world-class school of economics, in beautiful southern France! Deadline Jan 31st www.tse-fr.eu/groups/depar...
tse-fr.eu
Department of Social and Behavioral Sciences
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koenfucius @koenfucius.bsky.social · 26/12/2023
A 10-minute intervention can debias the reasoning in a base-rate task of a non-WEIRD sample, research by @boissinesther.bsky.social et al finds, suggesting bias in non-WEIRD individuals is largely a matter of performance, rather than competence: buff.ly/486B4gU via @wimdeneys.bsky.social
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Esther Boissin @boissinesther.bsky.social · 03/12/2023
❗New paper out with Mathilde Josserand, @wimdeneys.bsky.social and Serge Caparos in Cognition. 🖇️ wdeneys.org/data/Preprin... In this paper, we tried to debias the reasoning of the Himba of Namibia, a non-'Western Educated Industrialized Rich and Democratic' society in Africa. (1/4)
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Wim De Neys @wimdeneys.bsky.social · 03/12/2023
New Cognition paper "Debiasing thinking among non-WEIRD reasoners" with @boissinesther.bsky.social et al.
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samuel mehr @mehr.nz · 05/11/2023
who did this
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Iyad Rahwan | إياد رهوان @iyadrahwan.bsky.social · 20/11/2023
Our perspective paper "Machine Culture" is out in Nature Human Behavior. Free access version: rdcu.be/drzoS
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Carsten De Dreu @dedreu.bsky.social · 01/11/2023
!!Conference on Social Dilemmas!! in Leiden July 2-5 2024. Call for Abstracts is open. Keynotes are announced. Good weather ordered. Reposting appreciated! More information on: socialdilemma.com/icsd2024/
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koenfucius @koenfucius.bsky.social · 26/10/2023
A short explanation can help many biased reasoners correctly complete classic reasoning tasks. And the others? Just repeat—research by Nina Franiatte et al finds with further training almost all participants benefit, up to two months later: buff.ly/46WB2aH via @wimdeneys.bsky.social
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Maxime Derex @maximederex.bsky.social · 20/10/2023
📣 The Institute for Advanced Study in Toulouse seeks applications for POSTDOCTORAL FELLOWS and VISITING FELLOWS. More information and application links can be found at iast.fr/apply 🚨 Application deadline: November 15, 2023 🚨
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Wim De Neys @wimdeneys.bsky.social · 18/10/2023
Want to boost the impact of debias training? Just repeat it! Forthcoming Learning and Instruction paper with Nina Franiatte, @boissinesther.bsky.social et al. shorturl.at/krZ14 (1/3)
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Gordon Pennycook @gordpennycook.bsky.social · 27/09/2023
I'll be recruiting a PhD student in the next cycle - please pass this along to anyone who might interested in joining my lab at Cornell! Open-ended, but interest in topics relating to intuition/reason, metacognition, overconfidence, misinformation, or beliefs is a bonus!
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Michał Białek @mbialek82.bsky.social · 26/09/2023
I'm looking for a postdoc. Working on debiasing with a focus on language. Located in Wrocław, but largely remotely is also an option. Pay's better than prof, enough to make a living in pl. Please repost hr.uwr.edu.pl/en/assistant...
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