Sebastian Olschewski

Postdoc at Uni Basel and Warwick Business School. Interested in economic/financial/social decision-making, cognitive processes, & computational models

[Sebastian Olschewski @Seb_Olschewski]

New publication @PNASNews: Frequent winners explain apparent skewness preferences
in experience-based decisions

https://t.co/fLJI0XOYcb

With @Mikhail_Spektor and @gael_lemens

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[Yongming Sun @eatingmushroom]

Open access paper published in Cognitive Psychology: "Compressed representations and attentional competition in numeric integration for average estimations" w/ Alice Mason from Uni Bath & @Seb_Olschewski

[Marcel Binz @marcel_binz]

New short-form preprint in which we use Centaur to identify gaps in interpretable cognitive models and revise them accordingly using Qwen3 -- fully automated and without a human-in-the-loop.

https://t.co/z1GoaGNFWT

[Oleg Urminsky @OlegUrminsky]

Completely nonsensical politicization of scientistics identifying and correcting problems in science.
- Gino's research was not "promoting progressive ideas"
- The problems were not found by "bloggers," but by leading researchers/faculty in the same scientific discipline.

[Nature Human Behaviour @NatureHumBehav]

In this article, Du & Haith show that behavior can become habitual in two different ways, involving response initiation and response preparation, respectively
https://t.co/SjRZSaCJMb

[KrajbichLab @KrajbichLab]

Excited to share a new Trends in Cognitive Sciences paper that I had the pleasure to be a part of. This is an interdisciplinary perspective on the dynamics of cognitive costs, namely when these costs occur and how they impact our decisions. #neuroeconomics https://t.co/qAK9JDdYFj

[Nature Human Behaviour @NatureHumBehav]

This meta-analysis of 79 RCTs by Hoppen et al found that social comparison is an effective behaviour change technique for pro-environmental-, health-, performance-, and service-related behaviours.
https://t.co/019kMN2CQm

[Philipp Schoenegger @SchoeneggerPhil]

New preprint out with an amazing 40-person team! We find that Claude 3.5 Sonnet outperforms incentivised human persuaders in a >1000-participant live quiz-chat in deceptive and truthful directions!

[Rava Azeredo da Silveira @Rava_daSilveira]

Announcing the summer school on "Cognitive Foundations of Decision-Making" to be held from June 30 to July 4, 2025, in Ghent, Belgium. For information and the application pprocedures, see
https://t.co/PRMTDmmaSu

[Marcel Binz @marcel_binz]

We are looking for two PhD students at our institute in Munich.

Both postions are open-topic, so anything between cognitive science and machine learning is possible.

More information: https://t.co/wBE0mau7p3

Feel free to share broadly!

[Sebastian Olschewski @Seb_Olschewski]

We concluded that keeping track of the number of ordinal wins over all outcome pairs of two sequences remains an important behavioral mechanism in decisions from experience. But we are looking forward to future work to better understand how people process skewed distributions.

[Sebastian Olschewski @Seb_Olschewski]

@Mikhail_Spektor , @gael_lemens, and me engaged in an interesting debate about why people could prefer right-skewed outcome distributions in experience-based decision-making published in @PNASNews :
https://t.co/0kjbxxfQQS

[Sebastian Olschewski @Seb_Olschewski]

However, we argued that such a mechanism would be inconsistent with other experimental findings from our paper “Frequent winners explain apparent skewness preferences in experience-based decisions”.

[Brian Guay @BrianMGuay]

🚨Out today in PNAS @PNASNews🚨

https://t.co/J4gBSBjOtw

Why do people overestimate the size of politically relevant groups (immigrant, LGBTQ, Jewish) and quantities (% of budget spent on foreign aid, % of refugees that are criminals)?

We analyze 100k estimates to find out🧵👇

[Miloš Fišar @MilosFisar]

Submissions for our 2025 @EcScienceAssoc European Meeting are now open!

Send in your abstract by May 5 and join us in September in Brno @muni_cz

https://t.co/PmoqiIAk9y

[Arkady Konovalov @arkadykonovalov]

🚨 New paper 🚨

Out in @CommsPsychol: "Manipulating attention facilitates cooperation" with Claire Lugrin and Christian Ruff

We use gaze data and display manipulations in one-shot Prisoner's Dilemma games and find that these manipulations can drive choices through attention 👇

[Rava Azeredo da Silveira @Rava_daSilveira]

Why do people act randomly when playing games? And why do their actions depend on the context? An extended variational autoencoder models the cognitive processes that govern human decisions in games:
https://t.co/Ks9zHfAtpQ
With Guy Aridor and Mike Woodford.

[Sandro Ambuehl @SandroAmbuehl]

LLM agents behave unlike humans in standard experimental finance (bubble) experiments.

[Dirk Wulff @dirkuwulff]

Excited to share the materials for our course on open LLMs for science of science research @ZakASHussain
and I offered at the recent meeting of @euroscisci
at @LMU_Muenchen.

https://t.co/7XqejupoBs

[Andis Sofianos @sof_andis]

I have written a review article on the research within experimental economics studying the impact of intelligence on economic decision making.

https://t.co/X12IK1oBJu

#econtwitter