Asymmetrical social copying drives behavioural cascades following a shock event Abstract. When facing disruptive events, such as epidemics, terrorist attacks or financial crises, individuals often exhibit protective behaviours, includi

In which I’m a bit contributing in this paper led by Mehdi Moussaid @fouloscopie.bsky.social and Ralf Kurvers @ralfkurvers.bsky.social

royalsocietypublishing.org/rstb/article...

Volume 381 Issue 1948 | Philosophical Transactions of the Royal Society B | The Royal Society Influential themed journal issues across the life sciences.

Phil Trans Roy Soc B theme issue ‘The evolution of collective intelligence’ is out! royalsocietypublishing.org/rstb/issue/3...

ARC Talk: Lilian Weber, Osnabrück University: Rethinking reinforcement learning in biological agents: the role of internal states and inference in generating reward signals

🚨Next week's talk at ARC

Join us for a talk by Professor Lilian Weber (@lilweb.bsky.social, Osnabrück University).

📅 23 April 11:00 (Local Time Germany) @mpib-berlin.bsky.social or online

See the link for details👇
www.mpib-berlin.mpg.de/events/45441...

Check out this important work—developed together with researchers from our Center for Adaptive Rationality @arc-mpib.bsky.social!

ARC Talk: Chris Brown, University of Southampton: Exploring Democratic Intelligence: From Epistemic Design in Schools to a System-Level Index

🚨Next week's talk at ARC

Join us for a talk "Exploring Democratic Intelligence: From Epistemic Design in Schools to a System-Level Index" by Prof. Chris Brown.

📅 16 April 11:00 (Local Time Germany) @mpib-berlin.bsky.social or online

See the link for details👇
www.mpib-berlin.mpg.de/events/45277...

Selbstregulation gegen Kontrollverlust: So können Schulen auf dem Weg zur digitalen Mündigkeit unterstützen Wie Schulen digitale Mündigkeit fördern können: Prof. Ralph Hertwig erklärt, warum Selbstregulation für Jugendliche entscheidend ist und wie Boosting hilft.

Wie bleiben Jugendliche im digitalen Alltag souverän? Ralph Hertwig @arc-mpib.bsky.social erklärt im Interview, wie Schulen mit klaren Regeln und gezieltem „Boosting“ echte digitale Mündigkeit fördern können. #DigitaleMündigkeit #Boosting

evido-magazin.de/artikel/selb...

The Macro Trap: Why Worrying About Big Forces May Be Your Biggest Strategic Mistake Wars, oil swings and tariff shocks dominate every boardroom. But how much should they actually change what you do Monday morning? Less than you think.

The worry paradox: While people compulsively monitor macro forces they cannot change - like wars, oil prices & trade disruptions - research reveals they simultaneously avoid the specific future knowledge that might actually require them to act. @forbes.com & Gerd Gigerenzer @mpib-berlin.bsky.social

Lesenswerter Artikel über den Einsatz von KI in der psychischen Gesundheitsversorgung – und die Frage, wie Chancen und Risiken verantwortungsvoll ausbalanciert werden können.

Mit Einblicken u.a. von @dirkwulff.bsky.social, @schettino.bsky.social, @chaewonyun.bsky.social

👇

I'm hiring a postdoc! @goetheuni.bsky.social

Focus: CSS, political behavior, political communication & transforming information environments.

📍 Frankfurt | ⏳ 3 years | 📅 Deadline: 14 April 2026

Full job ad here: www.uni-frankfurt.de/48794987/Zen... (search for “political behavior” to find it)

ARC Talk: Filippo Massari, Università di Bologna: Good Biases in Misspecified Learning

🚨Next week's talk at ARC

Join us for a talk on "Good Biases in Misspecified Learning" by Prof. Filippo Massari (Università di Bologna).

📅 19 Mar 11:00 (Local Time Germany) @mpib-berlin.bsky.social or online

See the link for details👇
www.mpib-berlin.mpg.de/events/45085...

🧑‍💻 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... 🧵

Developing brains and changing worlds: Macroenvironmental changes and their association with brain development Growing evidence suggests that physical environmental features at the neighborhood level are linked to brain structure during human development. In a …

New CEN paper! 📣
Juan F. Quinones et al. used structural equation models & regularized multivariate path analysis to identify macroenvironmental features that predict changes in whole-brain structural features in a sample of 368 adolescents

www.sciencedirect.com/science/arti...

#neuroskyence

⏰ Last call! Applications for the 23rd Summer Institute on Bounded Rationality close next week, on March 16!

✨ Join us in Berlin @mpib-berlin.bsky.social, June 08–16, 2026, to explore "Decision Making in the Age of AI"

Don't miss your chance to apply 👇
www.mpib-berlin.mpg.de/research/res...

🚨 Updated preprint 🚨

Excited to share this updated preprint, in which @ruimata.bsky.social and I discuss five ways LLMs can help address longstanding challenges in cognitive science and psychology, examining both opportunities and pitfalls.

🔗 arxiv.org/abs/2511.00206

Ein MRT auf Reisen YouTube video by Max Planck Institute for Human Development

Premiere am Max-Planck-Institut für Bildungsforschung! 🎉

Ein mobiler Magnetresonanztomograph geht an den Start – und reist im Spezialtrailer direkt an Forschungsorte – für eine lebensnahe Umweltneurowissenschaft @cen-mpib.bsky.social 🧠🌍

Mehr erfahren:
youtube.com/shorts/3sTKv...

Why can’t we remember being toddlers? 🧠
In @time.com, Sarah Power @sarahdpower.bsky.social @lipmpib.bsky.social explains how a specially designed lab helps uncover how memories form in early childhood.

More news about LIP colleague @sarahdpower.bsky.social's work!

Human-AI collectives produce the most accurate differential diagnoses YouTube video by HACID Project

We have published the second short video of our series on hybrid collective intelligence. This time, @nikoz.bsky.social from @mpib-berlin.bsky.social presents how combining human expertise with AI insights can lead to better diagnostic accuracy in the medical domain.
youtu.be/Xz8wBkDzjjQ

If interested, check out how last year's event went:

bsky.app/profile/arc-...

📢 Reminder: Applications are still open for Summer Institute 2026 @mpib-berlin.bsky.social (June 8–16)!

This year's theme focuses on AI and decision-making — a great opportunity for early-career researchers in this space.

⏰ Application deadline: March 16

🔗 www.mpib-berlin.mpg.de/research/res...

Dirk Wulff (@dirkwulff.bsky.social), and more.

Our sincere apologies for the confusion. And again, we’re looking forward to your applications for the summer institute.

Konstantinos Katsikopoulos, Anastasia Kozyreva (@anaskozyreva.bsky.social), Tomás Lejarraga, Rui Mata (@ruimata.bsky.social), Zoe Rahwan, Mario Scharfbillig (@scharfbillig.bsky.social), Özgür Şimşek (@ozgursimsek.bsky.social), Peter Todd, Nikolas Zöller (@nikoz.bsky.social),

The program brings together researchers across multiple disciplines for talks and workshops by Gerd Gigerenzer, Ralph Hertwig, Levin Brinkmann (@levinbrinkmann.bsky.social), Jason Burton (@jasonburton.bsky.social), Julian Berger (@officialberger.bsky.social), Shahar Hechtlinger,

Note: In our previous post, we mistakenly tagged a wrong account. The correct accounts are below:

Dirk Wulff (@dirkwulff.bsky.social), and more.

Want to see what last year’s summer institute was like? Take a look here: bsky.app/profile/arc-...

We’re looking forward to your applications for the summer institute!

📣 Applications for the 23rd Summer Institute on Bounded Rationality are now open!

✨Join us in Berlin @arc-mpib.bsky.social June 08–16, 2026, to explore the topic of “Decision Making in the Age of AI”.

✏️ More details + application form (deadline: March 16): www.mpib-berlin.mpg.de/research/res...

The program brings together researchers across multiple disciplines for talks and workshops by experts, including Gerd Gigerenzer, Ralph Hertwig, Levin Brinkmann (@levinbrinkmann.bsky.social), Jason Burton @jasonburton.bsky.social), Julian Berger (@officialberger.bsky.social), Shahar Hechtlinger,

🚨New preprint! 🚨
"Boosting metacognition in entangled human-AI interaction to navigate cognitive-behavioral drift"
arxiv.org/pdf/2602.01959

Happy to see this new work coming to the surface alongside @cabels18.bsky.social @lorenzspreen.bsky.social @lewan.bsky.social and @stefanherzog.bsky.social
🧵

Interviewpodcast "Nur eine Frage": Zerstört das Internet die Demokratie, Ralph Hertwig? Der Psychologe Ralph Hertwig erforscht, wie das Internet Demokratien verändert. Er kennt die Gefahren von Fake News und Hetze – aber auch die Chancen globaler Vernetzung.

Die #Algorithmen vieler #SocialMedia - Plattformen belohnen Aufregung. Desinformation, Hass und Hetze dominieren. Zerstört das Internet die #Demokratie? Darüber spricht Ralph Hertwig @mpib-berlin.bsky.social im Podcast "Nur eine Frage" 🎧 Eine Hörempfehlung -> www.zeit.de/wissen/2026-... @zeit.de

🚨 New publication 🚨

Excited to share this new forum piece led by @kevinetiede.bsky.social

We propose broadening risk communication to cover neglected dimensions outlined in our risk-information taxonomy, requiring greater reliance on simulated experiences.

Open access: doi.org/10.1016/j.ti...