@tadegquillien.bsky.social
190 followers 96 following 80 posts
Cognitive scientist at the University of Edinburgh. Causality, computation, evolution. Lab: https://quillienlab.github.io/
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Reposted
vladchituc.bsky.social
Thrilled to announce a new paper out this weekend in
@cognitionjournal.bsky.social.

Moral psychologists almost always use self-report scales to study moral judgment. But there's a problem: the meaning of these scales is inherently relative.

A 2 min demo (and a short thread):

1/7
Reposted
jbaptistandre.bsky.social
Ever wanted to read about an old problem almost nobody cares about anymore?

Well, I wrote about it.

🧵
tadegquillien.bsky.social
A new study by Zach Horne et al. combines history of science and psychology experiments to document the appeal of 'intrinsic' explanations: scientists and laypeople are drawn to explanations that appeal to an object's inherent properties.
www.pnas.org/doi/10.1073/...
tadegquillien.bsky.social
I also recommend Gervais et al.'s thoughtful reply: pnas.org/doi/10.1073/...

(As they highlight, their broader arguments about cultural evolution and religion are not the target of my critique, and their cross-cultural findings remain intriguing despite the interpretive difficulties)
Reply to Quillien: Intuitive preferences and interpretive humility in intentionality judgments | PNAS
Reply to Quillien: Intuitive preferences and interpretive humility in intentionality judgments
pnas.org
tadegquillien.bsky.social
So this commentary is my small contribution to the skeptic's side of that broader debate.
tadegquillien.bsky.social
The problem is that this strategy would also allow us to 'infer' that people have intuitive preferences for nuclear explosions, or sending people to concentration camps:
tadegquillien.bsky.social
People tend to attribute more intentionality to agents that did something bad. It is tempting to use this effect as a way to covertly measure people's implicit attitudes, as Will Gervais and colleagues do in a recent paper on attitudes toward atheism:
www.pnas.org/doi/10.1073/...
tadegquillien.bsky.social
Can we use the way that people attribute intentions to others in order to infer people's intuitive preferences and attitudes?

I've written a short letter highlighting ways that this strategy can go wrong:
www.pnas.org/doi/10.1073/...
Intention judgments are not a reliable measure of intuitive preferences | PNAS
Intention judgments are not a reliable measure of intuitive preferences
www.pnas.org
Reposted
jfkominsky.bsky.social
The human visual system has specialized modular processing for multiple distinct categories of causal events.

My new paper with my lab manager Katharina Wenig in Cognitive Science, "Causal Perception(s)"

Free open access: onlinelibrary.wiley.com/doi/epdf/10....

#CogSci #PsychSciSky

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Causal Perception(s)
onlinelibrary.wiley.com
tadegquillien.bsky.social
Fantastic opportunity to join the cogsci community at Edinburgh:
bonan.bsky.social
My Lab at the University of Edinburgh🇬🇧 has funded PhD positions for this cycle!

We study the computational principles of how people learn, reason, and communicate.

It's a new lab, and you will be playing a big role in shaping its culture and foundations.

Spread the words!
Reposted
mehr.nz
Imagine if all the money academics pour into OA fees at for-profit publishing corporations went instead to academic societies, which exist to support science; or to university presses, which exist to support academia
Reposted
kartikchandra.bsky.social
Thanks to a rogue Partiful RSVP form at #cogsci2025, I seem to have collected an unexpectedly large dataset (N=197) of whether cognitive scientists think the mind is composed of innate, domain-specialized modules…
A bar chart showing frequencies of answers to the question "Is the mind composed of innate, domain-specialized modules?" with N=197. The most prominent bars are no response (~60), yes (~30) and yo (~30). The rest of the entries are funny, e.g. "I hope so."
tadegquillien.bsky.social
Overall, our work makes sense of why people tend to rely on social stereotypes more than they should if they were idealized Bayesian observers: they tend to preferentially allocate their limited cognitive resources to encoding group membership information.
tadegquillien.bsky.social
We also find that the optimal policy exhibits the same 'outgroup homogeneity bias' as people: it tends to represent outgroup members are more similar to each other than they are. Again, this is especially the case when cognitive resources are very limited.
tadegquillien.bsky.social
This explains why social stereotypes often act as 'energy-saving' devices for prediction, as social psychologists have found: people are for example more likely to use stereotypes when they are under cognitive load.
tadegquillien.bsky.social
Our key result: under limited resources, the optimal policy preferentially encodes information about group membership (blue) and tends to discard individuating information (teal).

This tendency only reverses if group membership has very low task relevance.
tadegquillien.bsky.social
We study agents who have to predict the behavior of other agents.

Agents have limited cognitive resources: they can only extract so much information from the environment, and have to prioritize which information to encode (group membership or individuating info).
tadegquillien.bsky.social
When predicting someone's behavior, people typically rely on both:
-individuating information (e.g. what that person did in the past),
-group membership,
We want to explain why people integrate these two types of information as they do, working from first principles.
tadegquillien.bsky.social
Our new #cogsci2025 paper led by @maxtaylordavies.bsky.social is a task analysis of agent representation under resource constraints:
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maxtaylordavies.bsky.social
At #CogSci2025 and curious about resource-rational models of social cognition? Come to Nob Hill A at 11:14 tomorrow to hear me talk about work with @tadegquillien.bsky.social where we use the information bottleneck to study stereotype use and the outgroup homogeneity bias!
Reposted
xphilosopher.bsky.social
Recent studies suggest that manipulating "growth mindset" might not improve students' academic performance

This new research suggests that it has a different effect. Growth mindset makes people more inclined to *blame* students for their failures

escholarship.org/content/qt4k...
Reposted
conjugateprior.org
Really loving this kind of engagement between the psychology and philosophy of causation.

So much better than psychologists re-explaining how people are just oh so irrational and philosophers examining their intuitions about increasingly elaborate tales of rock throwing and firing squads 😉