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Lénárd Döme

@lenarddome.bsky.social
140 followers 279 following 34 posts

computational cognitive scientist @tuebingen lenarddome.github.io

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Olivia Guest · Ολίβια Γκεστ @olivia.science · 28/09/2026
our work is about understanding factual phenomena (in people), not about if machines can think, get me?
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Iris van Rooij 💭 @irisvanrooij.bsky.social · 28/09/2026
Sometimes it feels as if we live in a timeline where psychologists have forgotten the subject matter of their own field.
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Olivia Guest · Ολίβια Γκεστ @olivia.science · 06/09/2026
What I would be interested in is for the media, USAmericans and other clueless attackers of academia on "free speech" to be confronted with: > Vrije Universiteit Brussel withdrew an offer of employment [&] members of the European Parliament objected to Pettit's research grant by the European Union
en.wikipedia.org
Harry Pettit - Wikipedia
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Taiki Oka @toka-neuro.bsky.social · 03/09/2026
1/7 Excited to share our new @elife.bsky.social Reviewed Preprint! 🧠 How do higher-order cognitive processes like abstraction & metacognition map onto transdiagnostic mental health dimensions? We combined computational modeling of a RL task with symptom profiling 🔗 doi.org/10.7554/eLif...
doi.org
Mapping abstraction and metacognition onto distinct transdiagnostic symptom profiles
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Sneha Krishnan @snehakrishnan.bsky.social · 17/08/2026
I wrote this in rage mostly because I wish we could have done more to stop the “free speech” defence of Cofnas and also because our Dalit colleagues’ vocabulary is powerfully true. This is institutional murder www.aljazeera.com/opinions/202...
aljazeera.com
Jason Arday’s death is institutional murder
Arday was subjected to a vicious campaign fuelled by anti-Black racism.
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kenzakdr.bsky.social @kenzakdr.bsky.social · 18/08/2026
1/6 New preprint! 🧵 How do we decide to decide? With @aleyamarzuki.bsky.social we showed that the interplay between urgency, evidence accumulation, and prediction errors converges in the dmPFC, into one signal: keep gathering information, or stop and commit to a choice. doi.org/10.64898/202...
doi.org
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Nothings Monstered @nothingsmonstrd.bsky.social · 16/08/2026
See also "awareness" campaigns, which are, in general, built on the syllogism 1) Enough people become aware of a problem. 2) ??? 3) Problem fixed!
static.klipy.com
South Park: Underpants Gnomes' Phase 1
Alt: South Park: the Underpants Gnomes' plan Phase 1: Collect underpants Phase 2: ? Phase 3: Profit
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Leya @aleyamarzuki.bsky.social · 14/08/2026
📢 Our paper is now out in @natcomms.nature.com! www.nature.com/articles/s41... We know that symptoms of OCD fluctuate substantially. But what are the exact conditions that precede symptom escalations? We found evidence for metacognitive processes being a key antecedent. 1/
nature.com
Drops in confidence precede symptoms of obsessive-compulsive disorder - Nature Communications
To devise effective interventions for obsessive-compulsive disorder, it is crucial to understand antecedents to symptom emergence. Here, the authors show evidence for self- and decision making underco...
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Count Binface @countbinface.bsky.social · 09/08/2026
I believe Clacton deserves an MP who will spend their time shining a light on everything the area has to offer. And why wait till I'm elected? I've been to visit one of the constituency's most stunning landmarks.
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Lénárd Döme @lenarddome.bsky.social · 07/08/2026
🧠New preprint: OSCAR, an auto-associative model that generates its own error signal by reconstructing its input, and so fits the inverse base-rate effect across supervised, observational, and unsupervised paradigms with one single architecture. Two new experiments included. arxiv.org/abs/2608.06149
arxiv.org
Errorless Irrationality: A unified computational account of the inverse base-rate effect across predictive, observational, and unsupervised procedures
The inverse base-rate effect is a robust bias in how people resolve ambiguity between competing categories, and the most prominent theories explain it through prediction error. Across two experiments ...
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Iris van Rooij 💭 @irisvanrooij.bsky.social · 04/08/2026
So heuristics make no promises. They may succeed on some inputs, they may fail on many inputs. There are no guarantees, they may fail massively, terribly, and often. Using heuristics is more like faith or hope than computer science or engineering. So what about approximation algorithms? 17/🧵
onlinelibrary.wiley.com
Bayesian Intractability Is Not an Ailment That Approximation Can Cure
Click on the article title to read more.
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Lénárd Döme @lenarddome.bsky.social · 14/07/2026
📢 Out now in PLOS Comp Biol: **cpm** — a Python library for theory-driven modelling in computational psychiatry. No scikit-learn for mechanistic cognitive models — so we built one: RL, prospect-theory & metacognition, hierarchical Bayes, and as many more as you can code 🔗 doi.org/10.1371/jour...
doi.org
cpm: A python library for theory-driven modelling in computational psychiatry
Author summary Computational psychiatry is a field that makes extensive use of computational methods to understand mental health. In this field and related disciplines, there is a strong need to desig...
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Ben Jonathan Wagner @benjwagner.bsky.social · 30/05/2026
We @saschafrolich.bsky.social @stefankiebel.bsky.social investigated how habitual- and goal-directed control interact when actions must be made under time pressure. www.nature.com/articles/s44...
nature.com
Context-dependent interaction between goal-directed and habitual control under time pressure - Communications Psychology
This study investigates the dynamic interplay between habitual and goal-directed control. Using RL and drift-diffusion modelling, we show that these systems interact in a context-dependent manner: hab...
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M.J. Crockett @mjcrockett.bsky.social · 20/01/2026
Great piece on prioritizing quality over quantity in scientific publication. For those of us with labs, this necessarily involves shrinking our group size. After I got tenure I started to downsize my lab and have not regretted it one iota. More time for each student & more time to think & write.
nature.com
I’m going to halve my publication output. You should consider slow science, too
If we don’t slow down, the research enterprise is going to crash, argues Adrian Barnett.
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Iris van Rooij 💭 @irisvanrooij.bsky.social · 06/08/2023
"The term ‘Artificial Intelligence’ (AI) means many things to many people (see Table 1) (...). One meaning of ‘AI’ that seems often forgotten these days is one that played a crucial role in the birth of cognitive science as an interdiscipline in the 1970s and ’80s." 2/n
Table 1, giving an overview of different meanings of AI
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Gavin Buckingham @drgbuckingham.bsky.social · 14/04/2026
on the perils of survey work (there will be trolls!)
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Samperson @samperson.bsky.social · 12/01/2026
greatest steam update of all time, because of one unnecessary detail
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Katrin Auspurg @kauspurg.bsky.social · 16/03/2026
…reproducibility problems are widespread. Only one in three authors (35%) share code, and even when code is available, only every second main result (51%) is numerically reproducible.
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Olivia Guest · Ολίβια Γκεστ @olivia.science · 13/02/2026
I'm really glad more and more people are noticing correlationism, part of the conspiratorial logic of AI... Guest, O. & Martin, A. E. (2025). A Metatheory of Classical and Modern Connectionism. Psychological Review. doi.org/10.1037/rev0... PDF: repository.ubn.ru.nl/bitstream/ha...
Extract from page 8
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Floor Burghoorn @floorburghoorn.bsky.social · 13/02/2026
Hitting the nail on its head with respect to always having to think about "the next step" as a postdoc, even after just having started a new job. We know it is part of the deal, and it is very hard to change this system, but it is important to keep discussing this. advalvas.vu.nl/en/science-e...
advalvas.vu.nl
The disposable worker bees of science
Postdocs carry out a substantial share of academic work, but the conditions under which they do so are stressful. As a result, more than forty percent suffer from mental health problems, research show...
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Jack Turban MD @turban.bsky.social · 09/02/2026
New study in Lancet eClinical Medicine (N=20,358) found that mental healthcare utilization initially increases (consistent with assessment requirements under guidelines), then drops substantially, following gender-affirming medical care. #transgender #mentalhealth #medicine
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Lénárd Döme @lenarddome.bsky.social · 15/01/2026
🎉 psp just hit 14K+ downloads! Our #rstats package for parameter space partitioning powered our work on g-distance, model comparison, irrationality, and heterogeneity: doi.org/10.1037/rev0... CRAN: cran.r-project.org/package=psp
cran.r-project.org
psp: Parameter Space Partitioning MCMC for Global Model Evaluation
Implements an n-dimensional parameter space partitioning algorithm for evaluating the global behaviour of formal computational models as described by Pitt, Kim, Navarro and Myung (2006) &lt;<a href="h...
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Sam Freedman @samfr.bsky.social · 10/01/2026
I wrote about this last month. Overshooting on reducing migration is going to be very costly. samf.substack.com/p/the-oversh...
samf.substack.com
The Overshoot
What happens to politics, and the country, as net migration collapses?
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Silvia Lopez-Guzman @silvialogu.bsky.social · 29/05/2025
Preprint alert 🚨! Excited to share our new work on metacognition in value-based decision-making. www.biorxiv.org/cgi/content/.... We ask whether it is possible to derive a computational measure of metacognitive ability for economic preference choices.
biorxiv.org
Computational characterization of metacognitive ability in subjective decision-making
Metacognition is the process of reflecting on and controlling one's own thoughts and behaviors. Metacognitive ability is often measured through modeling the relationship between confidence reports and...
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Elsa Fouragnan @efouragnan.bsky.social · 03/11/2025
A brain injury was reported in a trial using ultrasound, framed as low-intensity TUS. Kim Butts Pauly and I reviewed the case and disagreed with how it's presented. Key acoustic data are missing. Case: doi.org/10.1016/j.br... Letters: www.elsa-fouragnan.com/blog | web.stanford.edu/~kimbutts/Le...
sciencedirect.com
Brain Injury During Focused Ultrasound Neuromodulation for Substance Use Disorder
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Dominic @dmncschmtz.bsky.social · 21/10/2025
Reading the discussion below the quoted post I am astonished at how fucking privileged and ignorant some researchers are when it comes to very obvious issues like biases.
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Olivia Guest · Ολίβια Γκεστ @olivia.science · 07/10/2025
anybody as immature and brain rotted as me 🌝
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Tobias Hauser @tobiasuhauser.bsky.social · 09/10/2025
Come and say hi to @seowxft.bsky.social @floorburghoorn.bsky.social @lenarddome.bsky.social & @kenzakdr.bsky.social who will be demonstrating our brain explorer app and research at the @medresfdn.bsky.social stand at New Scientist Live event in London @uclqsion.bsky.social @unituebingen.bsky.social
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Alisa Loosen @alisaloosen.bsky.social · 16/09/2025
📢 NEW PREPRINT 📢 We show a metacognitive paradox (not blanket deficit!) in OCD: confidence is persistently lower, but fluctuations track evidence more tightly and are nearer Bayes-optimal. www.researchsquare.com/article/rs-7... 🧵👇
researchsquare.com
The metacognitive paradox of OCD: confidence is globally reduced but shows increased sensitivity to local evidence
Confidence is a critical metacognitive signal that guides performance. Biases in confidence, such as excessive doubt, are hallmark features of mental health disorders, especially obsessive- compulsive...
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Lénárd Döme @lenarddome.bsky.social · 16/09/2025
A new preprint 📝 with @tobiasuhauser.bsky.social @kenzakdr.bsky.social @benjwagner.bsky.social and Andrew Webb accompanying our cpm-toolbox.net python modelling library - including details about our motivations, toolbox features, framework and workflows! 👉 osf.io/preprints/ps...
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Lénárd Döme @lenarddome.bsky.social · 11/09/2025
Some really cool stuff here! Really glad to have been involved in the making 📝🥳 day-to-day fluctuations of confidence (across multiple domains) relate to OCD symptom reports
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Ben Williamson @benpatrickwill.bsky.social · 07/09/2025
Journal publishers *are* bundling your papers up in "data licensing agreements" for big tech companies to use for AI model training. Our publisher, T&F, got £75m from Microsoft for that last year alone.
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Stuart G. Spicer @stuartgspicer.bsky.social · 30/07/2025
Our research on video game loot boxes was cited in a recent Forbes article about Labubus. The article was a systematic review exploring the links between loot boxes, problem gambling and problem video gaming. In other words, purchases with chance-based outcomes. 1/2 www.forbes.com/sites/traver...
forbes.com
2 Reasons Behind The Sudden ‘Labubu’ Craze, According To A Psychologist
Some are baffled by how quickly Labubu’s have taken the world by storm. But, psychologically, trends like these are anything but surprising.
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Lénárd Döme @lenarddome.bsky.social · 03/09/2025
New models (three variants of Prospect Theory), new features (more ways to manage parameters, more model components to use), and of course bug fixes. If you want to make your computational modelling reproducible and robust, check out and install the new version of *cpm*: github.com/DevComPsy/cp...
github.com
Release v0.23.18 - New Prospect Models, improved parameter management, and a few bug fixes · DevComPsy/cpm
Install You can install the new release straight from the PyPi repository: pip install cpm-toolbox Added Add input validation and error handling in all cpm.optimisation.minimise methods Add test u...
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Iris van Rooij 💭 @irisvanrooij.bsky.social · 12/08/2025
AI slop and the destruction of knowledge irisvanrooijcogsci.com/2025/08/12/a...
irisvanrooijcogsci.com
AI slop and the destruction of knowledge
This week I was looking for info on what cognitive scientists mean when they speak of ‘domain-general’ cognition. I was curious, because the nuances are relevant for something I am researching at t…
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Psychonomic Society @psychonomicsociety.bsky.social · 12/08/2025
Ever have a symptom & assume the worst? That’s the Inverse Base Rate Effect—we over-focus on rare outcomes. A new #psynomPBR study by Dome @lenarddome.bsky.social & Wills finds distraction & time pressure can reduce this bias. Post by Alyssa Asmar. buff.ly/FTDQE25
buff.ly
Don’t think too much … it might make you irrational
Every so often, I get random chest pain and immediately spiral – is this it? Am I having a heart attack? Then I remind myself that I’m 25, probably overcaffeinated, and maybe just a little stressed…
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Lénárd Döme @lenarddome.bsky.social · 24/07/2025
I wonder how much tax money goes into research programmes likely this? In Europe for example? A shame indeed
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Theresa S. Horn @theresahorn.bsky.social · 21/07/2025
So excited to share that the NeNa registrations are open now! Can’t wait to see everyone in Heidelberg this October. 🎓🍂
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Carl T. Bergstrom @carlbergstrom.com · 21/07/2025
5. The right-wing enthusiasm for AI science is not about doing better science faster. It’s about eliminating one of the most effective forms of societal resistance to authoritarian control.
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Iris van Rooij 💭 @irisvanrooij.bsky.social · 28/06/2025
“Even the term 'Artificial Intelligence' … is widely misused, with conceptual unclarity coopted to advance industry agendas and undermine scholarly discussions. It is our task to demystify and to challenge 'AI' in our teaching, research & engagement with society.” openletter.earth/open-letter-...
openletter.earth
Open Letter: Stop the Uncritical Adoption of AI Technologies in Academia
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Lénárd Döme @lenarddome.bsky.social · 18/07/2025
A quote from Rumelhart/McClelland: "...real biological systems cannot be Turing machines because they have finite hardware." A sentiment somewhat related to our g-distance framework. What portion of unobserved but possible results your model rejects?
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Tobias Hauser @tobiasuhauser.bsky.social · 15/07/2025
#CPConf2025 is exploring multidimensional reward functions #RufusTempleOrchestra
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Tobias Hauser @tobiasuhauser.bsky.social · 15/07/2025
I'm very excited to share that @wellcometrust.bsky.social has awarded us a big grant on studying information gathering biases in #OCD and #Schizophrenia in patients, rodents, using modelling & clinical interventions. More details here: devcompsy.org/2025/07/15/n...
devcompsy.org
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Lénárd Döme @lenarddome.bsky.social · 14/07/2025
Come check out my poster on an accessible new python library cpm (cpm-toolbox.net) designed to ease you into modelling in computational psychiatry #CPConf2025 I’m poster 1.2 👀
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Tobias Hauser @tobiasuhauser.bsky.social · 14/07/2025
A packed cinema for Charlotte Fraza's tutorial on normative modelling #CPConf2025
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Claire Gillan @clairegillan.bsky.social · 14/07/2025
Serious FOMO here #CPConf2025
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Dr Abeba Birhane @abeba.blacksky.app · 08/07/2025
a couple of hours before my keynote, I went through an intense negotiation with the organisers (for over a hour) where we went through my slides and had to remove anything that mentions 'Palestine' 'Israel' and replace 'genocide' with 'war crimes' 1/
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Misha Teplitskiy | Science of science | on LinkedIn mostly @innovation.bsky.social · 19/06/2025
First-ever ranking of journals by impact factor, published by Garfield in Science in 1972. Science is ranked #77, impact factor 2.99 Nature is #114, impact factor 2.34
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Andrew Perfors @perfors.net · 14/06/2025
Save the date! The 2026 *gasp* Australasian MathPsych conference will be in Singapore -- looks to be a great one :) @ozmathpsych.bsky.social
Save the date: Australiasian Mathematical Psychology Conference. 23-25 Feburary 2026. Singapore. "Applying mathematical and quantitative psychology to real-world complex problems"
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James Michaelov @jamichaelov.bsky.social · 12/06/2025
New paper accepted at ACL Findings! TL;DR: While language models generally predict sentences describing possible events to have a higher probability than impossible (animacy-violating) ones, this is not robust for generally unlikely events and is impacted by semantic relatedness. 1/3
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