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Fredrik Jansson

@fredrikjansson.bsky.social
331 followers 83 following 7 posts

Associate Professor in Mathematics interested in cultural evolution and connecting psychology, sociology and philosophy through modelling.

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Fredrik Jansson @fredrikjansson.bsky.social · 19/09/2026
How does cultural complexity emerge? Chater & Christiansen argue that it arises as local solutions to immediate problems accumulate through social tinkering, without overarching design. We complement their account with two minimal principles: sequence representation and cultural-systems dynamics.
doi.org
Sequence representation and cultural systems are necessary for cumulative culture | Behavioral and Brain Sciences | Cambridge Core
Sequence representation and cultural systems are necessary for cumulative culture - Volume 49
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Fredrik Jansson @fredrikjansson.bsky.social · 12/02/2026
In a new paper, we find that judging facts by messenger rather than content leads to polarising belief packages (e.g. latte liberals, leftist support for wind power, rightist for nuclear). Worryingly, recommender algorithms use this strategy. No need to read the paper; you can just trust me on this.
nature.com
The emergence of polarised groups through source filtering - Humanities and Social Sciences Communications
Humanities and Social Sciences Communications - The emergence of polarised groups through source filtering
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Fredrik Jansson @fredrikjansson.bsky.social · 29/12/2025
How to convince others of what’s right and wrong: here is a popular-science press release presenting the findings from our latest paper. Arguments that don’t fit are filtered out, while those that connect to what already exists in your belief system get through and can force a reassessment.
eurekalert.org
Moral arguments about care and fairness persuade both liberals and conservatives
A new study in Public Opinion Quarterly shows that moral arguments appealing to care and fairness can persuade both liberals and conservatives in the United States. By contrast, arguments grounded in ...
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Fredrik Jansson @fredrikjansson.bsky.social · 25/11/2025
Despite the current state of politics, moral views have become more progressive over time. Why? In an experiment we found that the arguments that make liberals more liberal also persuade conservatives, whereas the arguments that make conservatives more conservative don't persuade liberals.
academic.oup.com
Susceptibility to Moral Arguments Among Liberals and Conservatives
Abstract. An empirical result in Moral Foundations Theory is that liberals and progressives endorse the individualizing factors of care and fairness, while
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Reposted by Fredrik Jansson
Björn Lindström @bjornlindstrom.bsky.social · 26/06/2025
💥New postdoc position! 💥 Join us to explore how people learn from each other—and how that drives cultural evolution. Run experiments, build computational models & collaborate across Europe w. @lucasmolleman.bsky.social 📍 Stockholm More info: shorturl.at/CY4wk
shorturl.at
Postdoctoral Researcher in psychology/cognitive science with focus on social learning and cultural evolution
Do you want to contribute to top quality medical research? The Mechanisms of Social Behavior lab at the Karolinska Institutet (PI: Björn Lindström) in Stockholm, Sweden is seeking a highly qualified
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Fredrik Jansson @fredrikjansson.bsky.social · 18/04/2024
We're employing several PhD students in maths with opportunities to work on cultural evolution, societal consequences of AI, polarisation, discrimination and large language models. Apply by 6 May or please help us spread the message!
culturalevolutionsociety.org
PhD student in mathematics applied to cultural evolution - Cultural Evolution Society
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Fredrik Jansson @fredrikjansson.bsky.social · 19/03/2024
Our new paper suggests that transmissible sender characteristics, such as the ability to persuade people and communicate effectively, might play a more significant role in cultural evolution than how we learn and from whom.
royalsocietypublishing.org
Cultural traits operating in senders are driving forces of cultural evolution | Proceedings of the Royal Society B: Biological Sciences
We introduce a mathematical model of cultural evolution to study cultural traits that shape how individuals exchange information. Current theory focuses on traits that influence the reception of information (receiver traits), such as evaluating whether ...
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