Thrilled to share that our new paper is now out in @cognitionjournal.bsky.social: "Who knows what? Bayesian Competence Inference guides Knowledge Attribution and Information Search," with @oliviermorin.bsky.social , @hugoreasoning.bsky.social & @tadegquillien.bsky.social! Link: tinyurl.com/ykyhxcc6

🧑‍💻 New paper at #chi2026 w @lorenzspreen.eurosky.social and @stefanherzog.bsky.social Are you worried about how social media algorithms affect people’s beliefs? We are, so we tested engagement-based ranking algorithms against alternatives in a pre-reg’d collaborative filtering experiment... 🧵

Applications for BAMB! 2026 are officially open! Join us in Barcelona (July 12–23) to master the art of behavioral modeling with our incredible faculty: @meganakpeters.bsky.social @marcelomattar.bsky.social @khamascience.bsky.social @thecharleywu.bsky.social Apply now here: www.bambschool.org

💡 Our new #preprint is available online! How do people adapt their decisions when priorities change? In our new study, we examine how the way people represent value shapes their ability to adjust in multi-goal environments. 🔗 OSF link: doi.org/10.31234/osf... It's a thread 🧵

Calling all scientists: Support your Iranian colleagues www.nature.com/articles/d41...

After 20 years as psychology's golden child, ego depletion collapsed. Now it's back...with a catch. The secret? Make people work for 30-40 minutes instead of 5. In other words, we finally discovered fatigue. New post on the redemption tour.

🚨New WP "@Grok is this true?" We analyze 1.6M factcheck requests on X (grok & Perplexity) 📌Usage is polarized, Grok users more likely to be Reps 📌BUT Rep posts rated as false more often—even by Grok 📌Bot agreement with factchecks is OK but not great; APIs match fact-checkers osf.io/preprints/ps...

🔺 New preprint 🔺 Why does poverty increase time discounting? With W. Frankenhuis and @danielnettle.bsky.social, we argue that current models do not account for discounting in *persistent* poverty, and show that a desperation threshold can! A quick 🧵

Rationality (especially its analytic component) is consistently associated with both earnings and wage gaps across 101 occupations. journals.sagepub.com/doi/10.1177/...

Our paper with @zoepurcell.bsky.social , @luciecharlesneuro.bsky.social and @wimdeneys.bsky.social on using LLMs to estimate belief strength in reasoning is out in Behavior Research Methods. If you're interested in reasoning biases & LLMs as measurement tools, check it out: rdcu.be/eZXGK (free pdf)

🎉 Our paper is out in Communications Psychology: a perspective on behavioural public policies & the psychology of poverty. Core idea: poverty can shift psychology, so the same intervention won’t work the same for everyone. Thread 🧵

Our machine learning competition on forecasting depression is online! We'd love for as many people as possible to participate. Please share in your respective networks — thank you :). www.staff.universiteitleiden.nl/announcement...

1/13 New paper with @wimdeneys.bsky.social accepted at @cognitionjournal.bsky.social 🥳 Is creativity intuitive? 👩‍🎨 A 🧵👇

🚨 New paper in @pnas.org to end 2025 with a bang!🚨 Behavioral, experiential, and physiological signatures of mind blanking www.pnas.org/doi/10.1073/... with Esteban Munoz-Musat, @arthurlecoz.bsky.social @corcorana.bsky.social, Laouen Belloli and Lionel Naccache Illustration: Ana Yael. 1/n

Self-control—the ability to ignore short-term temptations in favour of long-term goals—leads to better health, career success, financial security, but does it lead to wellbeing? New research suggests it’s the other way around, writes @ewdolan: buff.ly/u7HGaMz

Modeling Speed–Accuracy Trade-Offs in the Stopping Rule for Confidence Judgments! Now out in #PsychologicalReview (aka we can finally say we do comp models)! Led by @stefherregods.bsky.social @lucvermeylen.bsky.social @pierreledenmat.bsky.social Paper: desenderlab.com/wp-content/u... Thread ↓↓↓

Excited to announce our symposium on how AI and humans shape each other “Humans and Artificial Minds: Mutual Influences” 9 Jan at ENS Paris. Talks by @smfleming.bsky.social, Valeria Giardino, Silvia Tulli, @thecharleywu.bsky.social, Laurence Devillers & @summerfieldlab.bsky.social . Program ↓

Just published in Behavior Research Methods: The individual-level precision of implicit measures w/ @ianhussey.mmmdata.io 🧵👇 link.springer.com/article/10.3...

New paper in Science: In a platform-independent field experiment, we show that reranking content expressing antidemocratic attitudes and partisan animosity in social media feeds alters affective polarization. 🧵

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

New study on LLMs shows that while LLMs & humans converge on similar judgments of reliability of news media, they rely on very different underlying processes. In delegating, are we confusing linguistic plausibility with epistemic reliability? The age of "epistemia" www.pnas.org/doi/epdf/10....

🎉 New preprint: Bayesian Competence Inference guides Knowledge Attribution and Information search If someone knows that Venus is the only planet in the Solar System that rotates clockwise, will they also know what Earth’s only natural satellite is? What about which planets have no moons at all?

We wrote the Strain on scientific publishing to highlight the problems of time & trust. With a fantastic group of co-authors, we present The Drain of Scientific Publishing: a 🧵 1/n Drain: arxiv.org/abs/2511.04820 Strain: direct.mit.edu/qss/article/... Oligopoly: direct.mit.edu/qss/article/...

Brace yourself: neural and computational insights into the experience of mental effort! Now out in @cerebralcortex.bsky.social Led by Gaia Corlazzoli. Paper: desenderlab.com/wp-content/u.... Thread ↓↓↓

My first paper, out in PsychReview!! Along with @orbenamy.bsky.social, Nik & @jaeggiadrian.bsky.social, @realadamhunt.bsky.social & I revisit an old theoretical question using concepts from evo psychiatry and anthro: Why do mixed associations exist b/w social media & mental health? A 🧵

Delighted to share our new paper, now out in PNAS! www.pnas.org/doi/10.1073/... "Hierarchical dynamic coding coordinates speech comprehension in the brain" with dream team @alecmarantz.bsky.social, @davidpoeppel.bsky.social, @jeanremiking.bsky.social Summary 👇 1/8

1/10 🚨 New preprint: Using Large Language Models to Estimate Belief Strength in Reasoning 🚨 When asked: "There are 995 politicians and 5 nurses. Person 'L' is kind. Is Person 'L' more likely to be a politician or a nurse?", most people will answer "nurse", neglecting the base-rate info. A 🧵👇

🚨 New preprint! 🚨 Very happy to share our latest work on metacognition with M. Rouault, A. McWilliams, F. Chartier, @kndiaye.bsky.social and @smfleming.bsky.social where we identify contributors to self-performance estimates across memory and perception domains 👇 osf.io/preprints/ps...

In our study, we investigated how people evaluate everyday socio-political arguments in the context of their prior beliefs about the topics being discussed.

Introducing hMFC: A Bayesian hierarchical model of trial-to-trial fluctuations in decision criterion! Now out in @plos.org Comp Bio. led by Robin Vloeberghs with @anne-urai.bsky.social Scott Linderman Paper: desenderlab.com/wp-content/u... Thread ↓↓↓ #PsychSciSky #Neuroscience #Neuroskyence

Common neural choice signals reflect accumulated evidence, not confidence! Now out in @cerebralcortex.bsky.social w @helenevanmarcke.bsky.social @pierreledenmat.bsky.social @yfvisser.bsky.social @denizerdil.bsky.social a.o. Paper: desenderlab.com/wp-content/u... Thread ↓↓↓

Can large language models stand in for human participants? Many social scientists seem to think so, and are already using "silicon samples" in research. One problem: depending on the analytic decisions made, you can basically get these samples to show any effect you want. THREAD 🧵

🪦 New in @pnas.org: we analyzed 38 million U.S. obituaries to ask what signals a life well lived: What values are people most remembered for? How do legacies shift with cultural events? How do age and gender shape what it means to have lived well? www.pnas.org/doi/10.1073/...

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!

Today’s popular fictions can be extremely far from reality: The Lord of the Rings, Avatar, The Legend of Zelda, Avengers: Endgame. But has this always been the case?

Curious about the mechanisms behind biased reasoning and metacognition? 🤔 📍 Come see our poster at #CCN2025, Aug 12, 1:30–4:30pm We show how a biased drift-diffusion model can explain choice, RT and confidence in a base-rate neglect task, revealing why more deliberation doesn’t always fix bias.

We need data, not guesses, on how future tech may reshape behavior & society. Our new paper with @azimshariff.bsky.social and @iyadrahwan.bsky.social out in @nature.com spells out a framework we call the ❝science fiction science method❞ (sci-fi-sci) + www.nature.com/articles/s41...

1/8 New (and first) paper accepted at JEP:LMC 🎉 Ever fallen for this type of questions: "How many animals of each kind did Moses take on the Ark?" Most say "Two," forgetting it was Noah, and not Moses, who took the animals on the Ark. But what’s really going on here? 🧵

Excited to share my latest research ! Key findings reveal that a negative emotion triggered reasoning. #epistemology #Psychology #Cognition #Research #Science #Neuroscience #Reasoning #CognitiveScience #AcademicTwitter 📖 Read the full study: www.tandfonline.com/doi/full/10....

Do AI builders hold different values from AI users? We show that AI builders and men are more utilitarian and less supportive of pro-diversity outputs, highlighting ongoing concerns about workforce diversity and whose values are shaping AI. tinyurl.com/AIcognit

👀 Just out in Thinking & Reasoning with @boissinesther.bsky.social @mts-raoelison.bsky.social @wimdeneys.bsky.social Curious how intuitive reasoning develops through adolescence? 🔗 www.tandfonline.com/eprint/KFH5K... Quick summary👇

🚨In PNAS🚨 The right often accuses fact-checkers of political bias But we analyzed Community Notes on Musk's X and found posts flagged as "misleading" are 2.3x more likely to be written by Reps than Dems! The issue is Reps sharing misinformation, not fact-checker bias... www.pnas.org/doi/10.1073/...

🚨New paper!🚨 Meta-analysis on 4M p-values across 240k psych articles: How has psychology changed since the replication crisis began? How is replicability linked to citations, impact factor, and university prestige? 🧵 Paper: journals.sagepub.com/doi/10.1177/... Interactive: pbogdan.com/meganal

this is roughly my gutfeel for interpreting logit coefficients. #stats #rstats

Honest people don’t lie. Or do they? Liars aren’t honest. Or are they? One puzzling conundrum in contemporary politics is that politicians who seem to be estranged from facts and evidence are nonetheless considered honest by their followers. 1/n

Using this as an excuse to share a great post by @natehaines.bsky.social on modelling and Dunning-Kruger. haines-lab.com/post/2021-01...

William James's take on psychophysics is *incredible*. Worth reading the whole quote. #psychSciSky #philsky #VisionScience "But psychology is passing into a less simple phase. Within a few years what one may call a microscopic psychology has arisen in Germany, carried on by experimental methods,

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)

Does effort make life more meaningful? Was Sisyphus living the dream? In our new paper (now accepted in Cognition!), across 6 studies with nearly 3,000 participants, we found that more effortful tasks feel more meaningful 🧵