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Fiery Cushman

@fierycushman.bsky.social
2.6K followers 145 following 14 posts

Psychologist, but not the kind that can help you

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Jérémie Beucler @jeremiebeucler.bsky.social · 22/09/2026
1/15 What do we actually do when we deliberate, and how does it change over time? New preprint with @wimdeneys.bsky.social : "Rhythm of Thought: Tracing the Dynamics of Deliberation in Reasoning". 🔗 doi.org/10.31234/osf... (yes, I like flashy titles 💅) A 🧵👇
Title page showing:

Rhythm of Thought: Tracing the Dynamics of Deliberation in Reasoning
Jérémie Beucler a,* and Wim De Neys a

a LaPsyDÉ, CNRS, Université Paris Cité, F-75005 Paris, France

Abstract

When an intuitive answer is uncertain, people are thought to engage in further reasoning. But what people actually do during this additional thinking, how it unfolds over time, and why it sometimes leads to better answers remain unclear. We scored think-aloud protocols with large language models to track, moment by moment, four possible functions of deliberation (generating candidate responses, justifying them, controlling intuitive responses, and regulating cognitive effort), together with expressed confidence. Deliberation showed a clear temporal organization: generation dominated early, whereas justification, control, and regulation became increasingly prominent as reasoning progressed. Correct responses involved more justification, control, and regulation than biased responses, and these evolving dynamics predicted accuracy for out-of-sample participants and items. Confidence and deliberation also showed reciprocal lagged associations: lower confidence predicted further generation, justification, and control, whereas regulation predicted subsequent increases in confidence. Deliberation, then, appears to involve not a single act of "thinking harder," but an evolving interplay of reasoning processes whose organization is linked to whether reasoning succeeds.

Keywords: deliberation; reasoning dynamics; verbal protocols; large language models; metacognition; dual-process theories
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Tomer Ullman @tomerullman.bsky.social · 22/09/2026
new preprint: "Directing large language models to follow the letter or spirit of the law" arxiv.org/pdf/2609.23083 (by Qian , Li, Chen, Murthy @soniakmurthy.bsky.social , Belinkov, and me) this is particularly cool/important, and I'm allowed to say it because it was headed by @pqian.bsky.social
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Yu Kanazawa @knzw783.bsky.social · 21/09/2026
👶🧠 Pequay, E., & Dautriche, I. (2026). The development of compositionality in language and thought. Annual Review of Developmental Psychology, 8. Advance online publication. doi.org/10.1146/annu...
doi.org
The Development of Compositionality in Language and Thought
Compositionality is the property of a representational system whereby complex meanings arise from the combination of simpler meaningful elements. Here we take a developmental perspective to…
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Thomas Talhelm @thomastalhelm.bsky.social · 16/09/2026
🚨 It's published! 🚨 This is the big one. 100 cultures, 12,000 people, 108 researchers. Why people (and our most-used surveys) get collectivism wrong and how to fix it. www.nature.com/articles/s41... @natureportfolio.nature.com
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Max Kleiman-Weiner @maxkw.bsky.social · 11/09/2026
Our newest work unifying game theoretic ideas about the evolution of cooperation with the emergence of computation itself. Self-replicating programs first emerge through random mutation and then spread by cooperating.
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Melissa Kibbe @levelsof.bsky.social · 05/09/2026
Now out online! Why do kids sometimes bomb possibility reasoning tasks and other times totally nail it? We review the lit and show how differences in a set of common ancillary cognitive demands in these tasks "push around" the age at which children succeed - psycnet.apa.org/doiLanding?d...
psycnet.apa.org
APA PsycNet
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Ariel Levy @arielevy.bsky.social · 04/09/2026
New preprint with @fierycushman.bsky.social! Cultures vary in teaching practices: some emphasize examples, others favor direct rules. How can this difference affect cultural evolution? We use computational modeling and an iterated learning experiment to explore this question. osf.io/preprints/ps...
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Alissa Rivero @alissarivero.bsky.social · 04/09/2026
My first paper (with Jared Vasil and Mike Tomasello) is officially published! 🎉 Question: When can children coordinate decisions with each other in groups? Answer: Age 3! Read it here: academic.oup.com/chidev/advan... 🧵 (1/6)
academic.oup.com
Two- and three-year-olds coordinate decisions in dyads and triads
Abstract. Even young toddlers coordinate actions with a partner. But coordinating choices or decisions is more challenging, particularly in multi-party gro
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Tobias Gerstenberg @tobigerstenberg.bsky.social · 03/09/2026
The Stanford Psychology Department is having a search for a tenure-track Assistant Professor with a research focus on developmental and/or social psychology. Application deadline is 10/15. More infos here: facultypositions.stanford.edu/jobs/assista...
facultypositions.stanford.edu
Assistant Professor, Psychology - Stanford University, California, United States
The Department of Psychology at Stanford University is seeking applicants for a tenure-track Assistant Professor position, with a research focus on developmental and/or social psychology. In addition ...
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Tomer Ullman @tomerullman.bsky.social · 31/08/2026
new paper out: *~*~*~*~ "Revisiting the 5- to 7-Y ear Shift: The Age of Metacognitive Control?" (by Brod @garvinbrod.bsky.social , McAuliffe @katiemcauliffe.bsky.social , Ullman) *~*~*~*~ sharable paper link: bit.ly/5to7_2026 free pdf draft: www.tomerullman.org/papers/5to7s...
bit.ly
Revisiting the 5- to 7-year shift: The age of metacognitive control?
Abstract. The term 5- to 7-year shift refers to the marked changes in behavior observed as children transition from preschool age to school age. In 1996, a
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Nature Human Behaviour @nathumbehav.nature.com · 26/08/2026
Mentalizing and heuristics as distinct cognitive strategies in human teaching
dlvr.it
Mentalizing and heuristics as distinct cognitive strategies in human teaching
Nature Human Behaviour, Published online: 26 August 2026; doi:10.1038/s41562-026-02540-2Harootonian et al. find that people switch between effortful, tailored teaching and easier, simple shortcuts, favouring shortcuts even when unhelpful. Prompting participants to reflect on learners’ limitations restores effective, personalized instruction.
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Uta Frith @utafrith.bsky.social · 25/08/2026
The free-rider detection problem: How groups balance fairness and cooperation | PNAS www.pnas.org/doi/10.1073/... I found this paper relevant to understand society's tolerance or lack of it, for people who are unable to work for reasons of poor mental health.
pnas.org
The free-rider detection problem: How groups balance fairness and cooperation | PNAS
The free-rider detection problem: How groups balance fairness and cooperation
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Cailin O’Connor @cailinmeister.bsky.social · 20/08/2026
OK, so no one cares, but lately I've been feeling really jazzed about *social convention*! My paper "Convention for One" will be published in Thought, and argues we have conventions with ourselves that are very much like standard group conventions cailinoconnor.com/wp-content/u...
cailinoconnor.com
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Society for Philosophy and Psychology @socphilpsych.bsky.social · 19/08/2026
Agents of possibility: Specifying which person an event involved helps children gauge what is possible 🚨Recent work by Brandon W. Goulding, Samuel Ronfard & Ori Friedman
doi.org
Agents of possibility: Specifying which person an event involved helps children gauge what is possible
Abstract. Children often deny the possibility of unusual and improbable events and immoral actions. Three preregistered experiments on 5- and 6-year-old ch
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Levin Brinkmann @levinbrinkmann.bsky.social · 18/08/2026
We worry about homogenisation, but can AI also expand human culture? In a multi-generational experiment we demonstrate AI-induced cultural shifts. Machines lastingly shift human behavior, beyond their presence, just as AlphaGo did to Go. www.nature.com/articles/s41...
nature.com
Propagation and preservation of AI-discovered problem-solving strategies in human culture - Nature Communications
AI can uncover problem-solving strategies beyond human discovery. Here, the authors show that AI-discovered strategies propagate and persist in human populations, producing cultural shifts when non-tr...
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Björn Lindström @bjornlindstrom.bsky.social · 17/08/2026
When is language needed for human culture to accumulate? When observing successful behavior is not enough to recover the mental model behind it! This is an incredibly ambitious project, involving large-scale experimentation, RL and ABM modeling, and computational language analyses.
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Hanna @hanna-schleihauf.bsky.social · 14/08/2026
Reason-giving isn't a Western invention. New in Child Development: 360 children aged 5–9 in China, Kenya & the US spontaneously gave each other reasons to settle disagreements — and did so more when they disagreed than when they agreed. academic.oup.com/chidev/advan...
academic.oup.com
Children across diverse societies exchange reasons to resolve disagreements
Abstract. The exchange of reasons in rational discourse is crucial for resolving disagreements. In a preregistered cross-cultural study, 360 5- to 9-year-o
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Andrew Shtulman @andrewshtulman.bsky.social · 11/08/2026
Why do children claim unusual events are impossible? In a new paper with Goulding, Ronfard (@samuelronfard.bsky.social), and Friedman (@orifriedman.bsky.social), we synthesize two decades of research on children's possibility judgments and propose some answers. www.sciencedirect.com/science/chap...
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Kevin O’Neill @kevingoneill.github.io · 10/08/2026
new preprint! in my final grad school project led by @kmiceli.bsky.social & @ninavanrooy.bsky.social w/@felipedebrigard.bsky.social, we challenge ~20yrs of causal cognition research by finding a context in which people's causal judgments are completely *unaffected* by norms! osf.io/preprints/ps...
osf.io
OSF
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Ashwini Ashokkumar @ashwinia.bsky.social · 31/07/2026
New paper in @nature.com with @lukebeehewitt.bsky.social, @isaiasghezae.bsky.social, & @robbwiller.bsky.social: Can LLMs predict results of social science experiments? Across 70 experiments, we find a strong correspondence (r=.85) between predicted and observed effects. doi.org/10.1038/s415... 🧵
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Open Mind @openmindjournal.bsky.social · 29/07/2026
Children’s Representations of Possibility: Uncertainty About “What” Is Easier Than Uncertainty About “Where”
direct.mit.edu
Children’s Representations of Possibility: Uncertainty About “What” Is Easier Than Uncertainty About “Where”
Abstract. Young children struggle in situations involving mere possibility, such as when a target object could be in one of two possible locations. This difficulty is often interpreted as a general…
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Max Taylor-Davies @maxtaylordavies.bsky.social · 29/07/2026
🍄 New paper out in PLOS Computational Biology! 🍄 I, and others, have previously drawn a comparison between the classic “cost-avoidance” argument for social learning and the central idea of resource rationality... (1/8)
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Yarrow Dunham @yarrowdunham.bsky.social · 23/07/2026
Yale is hiring in developmental psychology (open rank )! We're especially interested in complementing and broadening our area, including via somewhat less traditionally central such as cross-cultural and comparative approaches. Feel free to reach out with questions!
nam12.safelinks.protection.outlook.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Mohammad Atari @mohammadatari.bsky.social · 20/07/2026
New paper out today in Social and Personality Psychology Compass! What happens when our moral values come into conflict? Our new paper explores "metamorality": the second-order principles we use to navigate conflicting moral choices. W/ Jesse Graham
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Tobias Gerstenberg @tobigerstenberg.bsky.social · 16/07/2026
Now out in Noûs: A communication-first account of explanation, with Jacqueline Harding (jacquelineharding.github.io) and Thomas Icard (stanford.edu/~icard/). Paper: onlinelibrary.wiley.com/doi/10.1111/... Preprint: arxiv.org/abs/2505.03732
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Julien Lie-Panis @jliep.bsky.social · 09/07/2026
Why do societies rely on rigid moral rules? Don't lie. Keep your promises. Don't steal. We all recognize there are good reasons to make exceptions. So why are moral rules so often categorical? Our new paper proposes an answer. 🧵
Screenshot of article title page, "Why human societies adopt rigid moral rules"
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Cognition @cognitionjournal.bsky.social · 08/07/2026
How do people build new ideas from existing knowledge? By tracking Wikipedia searches, we found that novel ideas emerged when people balanced exploration with exploitation—alternating between distant topics and deep dives into related information.
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Open Mind @openmindjournal.bsky.social · 06/07/2026
Luck and Intentional Action: A Causal Account
direct.mit.edu
Luck and Intentional Action: A Causal Account
Abstract. Can you perform an action intentionally if there was only a small chance your action would succeed? Researchers studying the folk concept of intentional action have documented complex…
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Jennifer Hu @jennhu.bsky.social · 02/07/2026
What's more nonsensical: smashing a pumpkin using a number, or growing flowers inside a sneeze? Our paper on graded inconceivability is out now in Cognition! Come for the cognitive science 🧠🔍, stay for the whimsy 🌼🧚! 🔗Journal link: bit.ly/gradedInconCog
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Prof Nichola Raihani @nicholaraihani.bsky.social · 01/07/2026
If you have (or will soon) complete your PhD & would like to join a thriving cultural evolution research group in NEW ZEALAND, drop me a line. UoA offers a handful of funded research fellowships. Applications must be made by a faculty member. Deadline August. Pls share with your students
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Tomer Ullman @tomerullman.bsky.social · 25/06/2026
Levine @sydneylevine.bsky.social et al.'s "Resource-rational contractualism: A triple theory of moral cognition" is out in BBS, highly worth your time: bit.ly/BBSLevine26 if you had time left, I had thoughts: "Non-negotiable problems for a negotiation framework of morality" bit.ly/BBSTUCom26
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Charley Wu @thecharleywu.bsky.social · 24/06/2026
Some of the first work related to my ERC is now available as a preprint 👉 arxiv.org/pdf/2606.20623 We model the learning of real-world melodies as resource-constrained inference over generative programs, with new implications for Rate-distortion theory: learning changes what is cheap to encode! 🧵👇
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Alex Mesoudi @alexmesoudi.com · 24/06/2026
New paper with Ángel Jiménez, @keith-jensen.bsky.social, Lei Chang and Hui Jing Lu Limited evidence that reputation-based partner choice facilitates information sharing in humans royalsocietypublishing.org/rspb/article...
royalsocietypublishing.org
Limited evidence that reputation-based partner choice facilitates information sharing in humans
Abstract. A necessary prerequisite for the accumulation of beneficial knowledge, or ‘cumulative cultural evolution’, is the sharing of information via soci
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Tania Lombrozo @tanialombrozo.bsky.social · 24/06/2026
I wrote a book! It's called WHY WE ASK WHY, and it's about the human drive to explain, combining psychology, philosophy, and stories. It will be released on October 6, but it's currently available for pre-order from Barnes & Noble at 25% off with code PREORDER25.
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Lara Kirfel @larakirfel.bsky.social · 08/06/2026
Representing possible alternatives lies at the heart of moral judgment. As LLMs become embedded in our reasoning processes, they change the set of alternatives we bring to mind. 💭 Our #CogSci2026 paper shows that AI might be making us judge people harsher. ⚖️ osf.io/preprints/ps...
blame
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Society for Philosophy and Psychology @socphilpsych.bsky.social · 07/06/2026
Children's prosocial and selfish rule-breaking following an implicit quid pro quo 🚨Recent work by Leon Li and Sebastian Grueneisen
doi.org
Redirecting
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Society for Philosophy and Psychology @socphilpsych.bsky.social · 05/06/2026
Children learn what is right or wrong selectively from a legitimate authority’s punishment 
‼️Work by Young-eun Lee, Setayesh Radkani & Rebecca Saxe
psycnet.apa.org
APA PsycNet
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Nathaniel Daw @nathanieldaw.bsky.social · 03/06/2026
I have been so excited about this project. In many ways the most surprising thing to me was how seemingly similar the AI-discovered models were to simple ones I thought I understood, even though they fit way better. This means we can also really get what makes them work.
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Ashley Thomas @ashleyjthomas.bsky.social · 29/05/2026
Hi everyone! My paper on cognitive representations of relationships and their developmental origins is finally out! I had a blast responding to the commentary and was honored to be able to engage with people who laid the foundation for my research program. www.cambridge.org/core/journal...
cambridge.org
Cognitive representations of social relationships and their developmental origins | Behavioral and Brain Sciences | Cambridge Core
Cognitive representations of social relationships and their developmental origins - Volume 49
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Léo Fitouchi @lfitouchi.bsky.social · 28/05/2026
Why do humans punish? Our new paper, with @manvir.bsky.social, is out in Psychological Science! With experiments in a small-scale society (Mentawai) & the US, we test whether punitive cognition evolved to deter wrongdoing or restore fairness. link: tinyurl.com/msrmu7cc pdf: tinyurl.com/mvprz8fb
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Björn Lindström @bjornlindstrom.bsky.social · 26/05/2026
Semantic knowledge is key for human innovation and cultural evolution! Our paper (thread in repost), led by fantastic @anilyaman.bsky.social & rising star @ts-brain.bsky.social is out in @pnas.org! www.pnas.org/doi/10.1073/... I will present this work at APS Barcelona (29/5), happy to chat!
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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David Levari @davidlevari.bsky.social · 27/05/2026
Pointing out that “everyone else is already doing it!” is a classic way to motivate prosocial behavior. But how can we encourage actions which aren't popular yet? In a new paper in @jexpsocpsych.bsky.social, Mike Norton and I had a lot of fun testing a method using "collective streaks." (1/5)
Screenshot of the title and abstract of the article "Levari, D. E., & Norton, M. I. (2026). Collective streaks motivate prosocial behavior. Journal of Experimental Social Psychology, 126, 104941."
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David Barner @drbarner.bsky.social · 26/05/2026
Aside from testing the MR view, we offer a new theoretical take on why kids fail. Kids conceptualize the goal of object retrieval tasks exactly as adults do betting. When we bet on horses, we don't spread bets across all options, but try to pick a winner. When FORCED to spread bets, kids succeed.
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Society for Philosophy and Psychology @socphilpsych.bsky.social · 22/05/2026
📣Recent work from Bill Pepe, Brandon Woo, Ashley Thomas & Lindsey Powell: Infants use helping to infer the existence and strength of caring relationships
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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koenfucius @koenfucius.bsky.social · 18/05/2026
Research by @lfitouchi.bsky.social & @manvir.bsky.social suggests the tension between (evolutionary) deterrence, and (intuitive) retribution punishment motives is resolved by a model reflecting restoration of mutual benefit between cooperative partners→compensation+deterrence buff.ly/3T6fdvd
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Amit Goldenberg @amit-goldenberg.bsky.social · 14/05/2026
One of the biggest insights from my research over the past few years: Groups (not just the individuals within them, but groups as distributed entities) do a remarkable range of things to manage emotion. See new paper in American Psychologist with Yajun Cao psycnet.apa.org/doiLanding?d...
psycnet.apa.org
APA PsycNet
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Rob Sica @robsica.bsky.social · 14/05/2026
"contractualism stands on three theoretical pillars that have stood the test of time and enjoyed widespread influence across the humanities, the natural sciences, and the social sciences: social-contract theory, evolutionary theory, and game theory"
wires.onlinelibrary.wiley.com
Contractualist Moral Cognition: From the Normative to the Descriptive at Three Levels of Analysis
Visual summary of the paper. Taking inspiration from the contractualist tradition in moral philosophy is helpful to better understand morality at three interrelated levels of analysis: Its evolutiona...
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tadegquillien.bsky.social @tadegquillien.bsky.social · 06/05/2026
Our new paper with @maxtaylordavies.bsky.social introduces a resource-rational model of Theory of Mind. The model can explain many of the successes and failures of mindreading in human adults and children, and non-human primates. 🧵 royalsocietypublishing.org/rspb/article...
royalsocietypublishing.org
Factive mindreading reflects the optimal use of limited cognitive resources
Abstract. The capacity to represent the mental states of other individuals, known as ‘mindreading’ or ‘theory of mind’, is key to successful social predict
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Society for Philosophy and Psychology @socphilpsych.bsky.social · 05/05/2026
The program for the 52nd meeting of the SPP is now available ✨ Taking place at Johns Hopkins University, June 17-20:
docs.google.com
SPP 2026 Program
52nd Annual Meeting of the Society for Philosophy and Psychology June 17–20, 2026 Johns Hopkins University, Baltimore, MD DRAFT PROGRAM Details are subject to change Program At-A-Glance Wednesd...
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