Vlad Chituc
@vladchituc.bsky.social
680 followers 510 following 600 posts
Cognitive scientist studying how morality, happiness, and other subjective magnitudes can be quantified. Postdoctoral fellow at Yale University https://www.vladchituc.com/
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vladchituc.bsky.social
Hi friends! I'm finally feeling well enough to share some news that I've been very excited about: earlier this week, my kidney was removed through a small cut in my stomach, tucked into a box, flown down to johns hopkins, and implanted into a stranger where its working great
Reposted by Vlad Chituc
seantcollins.com
CHATGPT: I understand where you're coming from. You worked really hard to get here, and now it's time to enjoy the fruit of your labors.

ISILDUR: So I should keep it? Elrond says I shouldn't

CHATGPT: The ring is precious. Sometimes friends don't have your best interests at heart.

ISILDUR: true
Reposted by Vlad Chituc
Reposted by Vlad Chituc
mcxfrank.bsky.social
Ever wonder how habituation works? Here's our attempt to understand:

A stimulus-computable rational model of visual habituation in infants and adults doi.org/10.7554/eLif...

This is the thesis of two wonderful students: @anjiecao.bsky.social @galraz.bsky.social, w/ @rebeccasaxe.bsky.social
infant data from experiment 1 conceptual schema for different habituation models title page results from experiment 2 with adults
Reposted by Vlad Chituc
posit.co
The new ggplot2 4.0.0 is here! 🎉

This major update includes a foundational rewrite of S7 and user benefits such as smarter labeling and a revamped theming system.

Check the details: www.tidyverse.org/blog/2025/09...

BONUS: Join the release party on Oct 3, 3pm ET. bit.ly/join-gg-extenders

#RStats
ggplot2 hex with tada emoji. Text: Join the v4.0.0 release party with Teun van den Brand and the ggplot2 extenders, Oct 3 at 3pm Et, bit.ly/join-gg-extenders
Reposted by Vlad Chituc
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 by Vlad Chituc
jorge-morales.bsky.social
🚨🚨🚨 The Subjectivity Lab is looking for a lab manager! The position is available immediately. We want someone who can help coordinate our large sample fMRI study, plus other behavioral work. Because *gestures at everything* the job was approved only now (ends in June 2026). Great opportunity! 🧵 1/4
Laboratory Technician
About the Opportunity SUMMARY The Subjectivity Lab, directed by Jorge Morales, and housed in the Department of Psychology at Northeastern University is excited to invite applications for a full-time L...
northeastern.wd1.myworkdayjobs.com
Reposted by Vlad Chituc
cognitionjournal.bsky.social
"How to show that a cruel prank is worse than a war crime: Shifting scales and missing benchmarks in the study of moral judgment"

📢New paper from: @vladchituc.bsky.social, @mjcrockett.bsky.social, & Brian Scholl

www.sciencedirect.com/science/arti...
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 by Vlad Chituc
marleneberke.bsky.social
Psychophysics meets moral psych! In the best possible way!

I worry what this means for clinical research and patient reported outcomes, which often measure things like pain on a very simple 1-10 scale, often without clear anchoring.

Such important work by
@vladchituc.bsky.social!
Reposted by Vlad Chituc
vladchituc.bsky.social
Bonus: these scenarios are obviously and intentionally exaggerated, and it's not clear how widespread these problems are in the actual moral psych literature. But if you're interested in using these methods (or would like to be involved in a large-scale replication project) please reach out!
vladchituc.bsky.social
I love this paper, and I'm thrilled that it's finally out. You can read it at the following link for the next month or so, and for free on my site anytime after that

Journal: authors.elsevier.com/a/1lrB72Hx2-...

Preprint: vladimir-chituc.squarespace.com/s/Chituc-EtA...

7/7
vladimir-chituc.squarespace.com
vladchituc.bsky.social
We should hope that the measures used by our discipline can reveal something as obvious as the fact that a college prank (however cruel) is not nearly as bad as murder. But only one method consistently does this: magnitude estimation.

6/7
vladchituc.bsky.social
So while self-report ratings only show that a war crime is worse than a prank when scenarios are presented together (or within-subjects), you get the obvious difference with magnitude estimation whether you're rating the scenarios together or apart (between-subjects).

5/7
vladchituc.bsky.social
So how can we avoid this? Use a psychophysical method called "magnitude estimation" (where you make ratio judgments in reference to a benchmark stimulus): e.g. if stealing a wallet is a 10, then something twice as bad would be a 20, half as bad would be a 5, and so on.

4/7
vladchituc.bsky.social
This is obvious for everyday adjectives—if I say I have a small house and a big dog, you know I'm not saying that the latter is larger than the former.

And the same holds true for immorality.

(Also: this project has my favorite joke that I've ever snuck into a paper).

3/7
vladchituc.bsky.social
To state the obvious: college students don't really think a cruel prank is worse than an internationally recognized war crime. Instead, the words "very immoral" just mean very different things in these very different contexts.

2/7
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 by Vlad Chituc
scobb.net
If you read just one article about AI this weekend, let it be this.

I've spent the last six years researching tech risk, existential risk, and AI. This is one of the best things I've read in that space. #AI #AIRisk #TechRisk #TechEthics #AIEthics #XRisk
“AI will kill everyone” is not an argument. It’s a worldview.
How rational is Eliezer Yudkowsky’s prophecy?
www.vox.com
Reposted by Vlad Chituc
lastpositivist.bsky.social
Colin McGinn --
amutepiggy.bsky.social
The puppeteer's union has rejected my slogan "We Need More Hand Jobs!"
Reposted by Vlad Chituc
jorge-morales.bsky.social
I hadn't read Turing's 1950 "Computer Machinery and Intelligence" (where he introduced the imitation game, a.k.a. the Turing test) since the advent of LLMs. It's so striking that people asked so many relevant questions about artificial intelligence right at the inception of the field.
Reposted by Vlad Chituc
fierycushman.bsky.social
This was such a fun project! Dozens of philosophers wrote philosophical arguments trying to get people to donate more to charity, and we ask: Do any of these work? Which ones work best? Why?
kirstanbrodie.bsky.social
Can reasoned arguments shift moral behavior? In a new preprint, @eschwitz.bsky.social, Jason Nemirow, @fierycushman.bsky.social and I explore this question in the context of charitable donation. (1/10)
Title: Philosophical Arguments Can Boost Charitable Giving
Authors: Kirstan Brodie, Eric Schwitzgebel, Jason Nemirow, and Fiery Cushman
Reposted by Vlad Chituc
ultimashadow.bsky.social
Genuinely powerful words to live by.
vladchituc.bsky.social
Almost like valuing AI companies as if they could replace the vast majority of the workforce was premature and stupid !!