Lightnews — Scholar-powered news

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Alisa Loosen @alisaloosen.bsky.social · 22d

📢 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...
🧵👇

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...

www.researchsquare.com

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Lénárd Döme @lenarddome.bsky.social · 22d

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 · 27d

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

Leya @aleyamarzuki.bsky.social · 27d

🚨New pre-print out! 🍂

Using daily gamified smartphone 📱 tracking, we found that reductions in both self- and decision-making confidence precede when people are likely to report experiencing symptoms of OCD.

www.researchsquare.com/article/rs-7...

Metacognitive antecedents to states of mental ill-health: Drops in confidence precede symptoms of OCD

Mental health symptoms, like those in obsessive-compulsive disorder (OCD), show pronounced fluctuations over time. However, little is known about the underlying factors driving these fluctuations. Whi...

www.researchsquare.com

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Ben Williamson @benpatrickwill.bsky.social · Sep 6

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 · Jul 30

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...

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.

www.forbes.com

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Lénárd Döme @lenarddome.bsky.social · Sep 3

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...

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...

github.com

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Iris van Rooij 💭 @irisvanrooij.bsky.social · Aug 12

AI slop and the destruction of knowledge irisvanrooijcogsci.com/2025/08/12/a...

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…

irisvanrooijcogsci.com

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Psychonomic Society @psychonomicsociety.bsky.social · Aug 12

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

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…

buff.ly

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Lénárd Döme @lenarddome.bsky.social · Jul 24

I wonder how much tax money goes into research programmes likely this? In Europe for example? A shame indeed

Dr Abeba Birhane @abeba.bsky.social · Jul 24

this is what happens when infinite resources are poured into a technology based on 'promises' and 'potentials' rather than verifiable evidence (standard that applies everywhere except AI)

Tombmas Spooks @thomasfuchs.at · Jul 24

The purpose of a system is what it does

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Theresa S. Horn @theresahorn.bsky.social · Jul 21

So excited to share that the NeNa registrations are open now! Can’t wait to see everyone in Heidelberg this October. 🎓🍂

NeNa Conference @nena-conference.bsky.social · Jul 21

🚨 NeNa 2025 registrations are OPEN! Don’t miss your spot — sign up now: nenaconference.github.io

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Thank you for our sponsors: @gtc-tuebingen.bsky.social‬, @hih-tuebingen.bsky.social‬, @mpicybernetics.bsky.social‬, and Centre for Integrative Neuroscience
#NeNa2025 #Heidelberg

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Carl T. Bergstrom @carlbergstrom.com · Jul 21

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 · Jun 28

“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-...

Open Letter: Stop the Uncritical Adoption of AI Technologies in Academia

openletter.earth

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Lénárd Döme @lenarddome.bsky.social · Jul 18

Models should be constrained on their behavioural heterogeneity and we should be concerned about the number of Unobserved Model Prediction (UMP) they can produce

Lénárd Döme @lenarddome.bsky.social · Jul 18

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?

Lénárd Döme @lenarddome.bsky.social · Apr 16

This one is finally out! 🎉

We introduce g-distance, a measure that assesses model adequacy by comparing the range of behaviours exhibited by models to that of humans. #computationalmodeling #cognitivescience

psycnet.apa.org/doi/10.1037/...

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Tobias Hauser @tobiasuhauser.bsky.social · Jul 15

#CPConf2025 is exploring multidimensional reward functions #RufusTempleOrchestra

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Tobias Hauser @tobiasuhauser.bsky.social · Jul 15

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 · Jul 14

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 · Jul 14

A packed cinema for Charlotte Fraza's tutorial on normative modelling #CPConf2025

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Claire Gillan @clairegillan.bsky.social · Jul 14

Serious FOMO here #CPConf2025

Tobias Hauser @tobiasuhauser.bsky.social · Jul 14

Here we go - #CPConf2025 is on! Fabulous to see so many people attending,n 🥳🥨

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Dr Abeba Birhane @abeba.bsky.social · Jul 8

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'

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Dr Abeba Birhane @abeba.bsky.social · Jul 8

my keynote happening in a few mins. registration here to stream it

aiforgood.itu.int/summit25/reg...

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Andrew Perfors @andyperfors.bsky.social · Jun 14

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 · Jun 12

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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Sam McDougle @actlab.bsky.social · Jun 2

Thrilled to share the new paper from the lab out today in
@nathumbehav.nature.com, led by the great @jetrach.bsky.social!

"Mental graphs structure the storage and retrieval of visuomotor associations"

www.nature.com/articles/s41...

Mental graphs structure the storage and retrieval of visuomotor associations - Nature Human Behaviour

Trach and McDougle show that motor responses can form part of structured, graph-like memory representations.

www.nature.com

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Michelle Greene @mgreenephd.bsky.social · Jun 9

I'm excited to announce that my lab's open textbook on Scientific Computing for Cognitive Neuroscience (v1.0) has just gone live! Our goal is to help mend the gap between the computational skills needed by cognitive neuroscience, and typical curricula that don't yet include it. 1/3

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