Martin Lang

@martinlangcz.bsky.social

Cognitive and evolutionary science of human cooperation with particular interest in signaling, ritual, and religion. Assist Prof at LEVYNA, Masaryk Uni www.martinlang.cz #CogEvoSciRel

Psych Science (the journal) is broader than you might think! Do you do descriptive research? Or research w/ underrepresented populations or cultural frameworks? Or research on AI/LLMs for psych? Or research testing lab findings in the real world? We have a special issue for that!

Tom Hardwicke@tomhardwicke.bsky.social · 3w ago

Send your best work to Psychological Science! Four special issue calls: 1. Descriptive Research in Psychological Science www.psychologicalscience.org/publications... 2. Advancing Psychological Science Using Large Language Models www.psychologicalscience.org/publications...

Why don’t free-riders fake costly signals of commitment and then enjoy the benefits of cooperation? We show that cooperators and free-riders can attach different subjective values to the same signal, making signaling worthwhile for committed members but unattractive to outsiders. shorturl.at/ognc1

Differential Cost-Benefit Estimation Stabilizes Cooperative Benefits of Commitment Signals

Communicating group commitment is critical for identifying reliable cooperative partners, and this assortment has been theorized to be facilitated by attaching costs to commitment signals. However, it...

shorturl.at

Why do rituals persist? They are often treated either as attempts to influence uncertain outcomes or as practices that regulate group life. But these functions are usually blended together. In our new paper, we argue that reinforcement learning helps explain this blending.

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The Cultural Evolution Society is delighted to announce that Feryl Badiani (She/Her), LEVYNA, Masaryk University, is the recipient of the 2026 CES Richerson Award for Outstanding Doctoral Research. Please join us in congratulating Feryl on this well-deserved recognition!

New paper— everyone is collecting intensive longitudinal data but recent review studies report that less than half of studies consider measurement/psychometrics. The paper covers a few foundational psychometric methods for ILD and provides a shiny app to apply them link.springer.com/article/10.3...

A primer on intensive longitudinal psychometrics - Behavior Research Methods

Many intensive longitudinal studies are interested in topics that are not always amenable to direct physical measurement and instead are often theorized as latent constructs (e.g., affect, emotion, mo...

link.springer.com

Can distant conflict increase religiosity? Led by R. Chvaja, we found that the Russian invasion of Ukraine was associated with increased religious engagement in nearby countries, but in different groups: mainly among the religious in Czechia, and among the non-religious in Poland. shorturl.at/euxSh

How remote conflict shapes religious engagement: the impact of Russian invasion of Ukraine on religiosity in Europe

War and its associated suffering often lead people to turn to religion. Yet, it remains unclear whether this effect is limited to those directly impacted by war or whether the mere anticipation of ...

tandfonline.com

📢 New Paper 🚨 Hadza food-sharing is egalitarian, yet offers in giving games have never matched the equitable redistribution seen in real life. In this study, we allowed people to give *or* take. Lifelike equitable distributions only appeared when people took from peers in surplus. bit.ly/4kvLOwA

The “I” in egalitarianism: Hadza hunter-gatherers averse to inequality primarily when personally unfavorable

Abstract. Many economists contend that humans have strong, universal, other-regarding equality preferences with deep evolutionary roots. Indeed, many hunte

academic.oup.com

New paper - we try to test a classic secularization theory w/ longitudinal data: is material security in early adolescence associated with later decrease in belief in God in young adulthood? tl;dr: it is, a little bit.. w/ @lnpx1thetadelta.bsky.social & R.Chvaja www.cambridge.org/core/journal...

The longitudinal associations of material security and belief in God in young Americans | Evolutionary Human Sciences | Cambridge Core

The longitudinal associations of material security and belief in God in young Americans - Volume 8

cambridge.org

After 5 years of data collection, our WARN-D machine learning competition to forecast depression onset is now LIVE! We hope many of you will participate—we have incredibly rich data. If you share a single thing of my lab this year, please make it this competition. eiko-fried.com/warn-d-machi...

WARN-D machine learning competition is live » Eiko Fried

If you share one single thing of our team in 2026—on social media or per email with your colleagues—please let it be this machine learning competition. It was half a decade of work to get here, especi...

eiko-fried.com

Why do people endorse seemingly extraordinary beliefs such as in pseudoscience & supernatural entities? Leading approaches stress cognitive biases (like agency detection) & social dynamics (like signaling). Eli Stark-Elster & I argue that experience matters too & put fwd a framework explaining how.

Eli Stark-Elster@eselster.bsky.social · 10mo ago

In a new Review for @cp-trendscognsci.bsky.social -- and my first first-authored paper! -- @manvir.bsky.social and I argue that experience shapes the emergence and evolution of seemingly extraordinary beliefs. www.sciencedirect.com/science/arti...