How much of a risk are LLM-generated bots for online behavioral experiments? We present results of an entirely natural language prompt-generated agent, capable of absolving any of the 26 experiments we tested it on. Most tasks are passed with data that can pass as human osf.io/preprints/ps... (1/)

Over the past two years, I4R partnered with Psychological Science (@psychscience.bsky.social) on a large reproducibility project. 67 independent teams reproduced 64 articles published in 2024–2025, about 44% of eligible papers. Paper: www.econstor.eu/bitstream/10... Here's what we learned 🧵

So… we just found out that GPT sol can complete a complex online behavioral/cognitive study producing nearly indistinguishable behavior and subjective reports… right as we are about to launch. Is this doomsday for online cognitive testing?

New preprint! We investigate the role of language in the transmission of mental models in cultural evolution. Using a transmission chain design with over 2000 participants, we show that only language allows for the transmission and refinement of mental models. osf.io/preprints/ps...

Two poster presentations from my group at #sbdm2026 in Paris. Magdalena Soukupová on the social learning mechanisms of human goal selection and @pierreledenmat.bsky.social on (lack of) mentalizing in social learning.

Recently, van der Stigchel and colleagues posted a provocative commentary suggesting that we should be wary of bots in online behavioral data collection (🧵by @cstrauch.bsky.social here: bsky.app/profile/cstr...). But should we? Here is my response letter osf.io/preprints/ps.... 1/5

Si vous aimez les SHS/sciences cog/philo et ce qui est deep, allez écouter ce podcast de potes qui invitent des chercheurs.euses pour parler de tout ça dans une ambiance relax ! Partagez ici et notez sur les apps pour nous aider à atteindre notre audience svp 🙏 open.spotify.com/show/7iDdboe...

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 ↓↓↓

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 ↓↓↓

Companion piece in @cp-trendscognsci.bsky.social to our recent @nathumbehav.nature.com paper, in which we put our "Social feature learning" model of social learning strategies in context.

David Schultner@davidschultner.bsky.social · last yr.

🎊 New paper out! In this @cp-trendscognsci.bsky.social Forum, we (with @lucasmolleman.bsky.social and @bjornlindstrom.bsky.social) summarize how reward learning can lead to adaptive social learning. We also explore the broader consequences for cultural evolution: www.cell.com/trends/cogni... 🚄

If you want to read more about the nuts and bolts of our reward learning account of social learning—the Social Feature Learning (SFL) model—check out our recent @nathumbehav.nature.com paper: www.nature.com/articles/s41...

Feature-based reward learning shapes human social learning strategies - Nature Human Behaviour

This research advances a mechanistic reward learning account of social learning strategies. Through experiments and simulations, it shows how individuals learn to learn from others, dynamically shapin...

nature.com

Ever wondered if you were aware of your own biases? Us too! If you're attending #RLDM2025, stop by poster #92 on Friday to learn how we tested insight into perceptual decision biases using (hierarchical) drift diffusion modelling. Work with @kobedesender.bsky.social, Peter Murphy & Hanne Daenen.

The second @rldmdublin2025.bsky.social poster from the lab is by fantastic PhD student Shen Tian. Using modeling and experiments, he investigated the key role of semantic knowledge in a complex innovation task (originated by @maximederex.bsky.social). On Thursday, poster #86

Björn Lindström@bjornlindstrom.bsky.social · last yr.

Poster presentation from the lab at #RLDM2025 this week. This is a very exciting and ambitious project, combing RL, natural language processing and cultural evolution!

Join our @erc.europa.eu funded lab @ki.se! We're hiring a postdoc to explore how humans learn from each other — with fMRI, modeling, & behavioral experiments. 🧠👫 A chance to lead cutting-edge work in social neuro & computational psychology. Apply: shorturl.at/GJQuW

Postdoctoral Researcher in social/cognitive neuroscience with focus on social learning

Do you want to contribute to top quality medical research? The Mechanisms of Social Behavior lab at Karolinska Institutet (PI: Björn Lindström) is seeking a highly qualified postdoctoral researcher.

shorturl.at

Dynamic modulation of confidence based on the metacognitive skills of collaborators! Now out in @cognitionjournal.bsky.social New work from @felixhermans.bsky.social Simon Gaia @majafr.bsky.social and me! Paper here: pubmed.ncbi.nlm.nih.gov/40262423/ Details ↓↓↓

PhD position in cognitive computational neuroscience! Join us, & investigate how we can endow domain-specific models of vision (eg DNNs) with domain-general processes such as metacognition or working memory. All details => www.kuleuven.be/personeel/jo... #PsychSciSky #Neuroscience #Neuroskyence

PhD position in cognitive computational neuroscience

PhD position in cognitive computational neuroscience

kuleuven.be

Why does it feel good to be sure? In new work @voalan.bsky.social @andero.bsky.social and I bridge confidence and affect. In perceptual DM, we found a remarkably consistent association between both measures! ↓↓↓ link: www.tandfonline.com/doi/full/10.... #PsychSciSky #Neuroscience #Neuroskyence

Metacognitive confidence and affect – two sides of the same coin?

Decision confidence is a prototypical metacognitive representation that is thought to approximate the probability that a decision is correct. The perception of being correct has also been associate...

tandfonline.com

Optimal confidence = P(correct|evidence, time), but how do humans compute this? @pierreledenmat.bsky.social Tom Verguts and I provide a low-dimensional approximation of optimal confidence (the LDC model). paper: journals.plos.org/ploscompbiol... #PsychSciSky #Neuroscience #Neuroskyence

It was only a matter of time - a metacognition starter pack! Do let me know if I’ve missed people or if you’d like to be added #neuroskyence 🧪 go.bsky.app/9PSjwLF