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David Barner

@drbarner.bsky.social
3.7K followers 1K following 418 posts

Professor of Psychology at UCSD interested in language & conceptual development.

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Reposted by David Barner
Urvi Maheshwari ツ @urvi.bsky.social · 7h
New w/ @drbarner.bsky.social in Cognitive Science! We explored how kids learn the “later-greater” principle — the idea that numbers that come later in a count are greater in magnitude. Turns out this simple property governing the count system doesn't come easy! dx.doi.org/10.1111/cogs... 1/6
dx.doi.org
One, Two, Three, Four… What's More? Successor Relations, not Mappings to Approximate Magnitudes, Support Learning the Later‐Greater Principle
As we count up, number words that occur later in our count denote greater quantities. Here, we tested whether children's understanding of this “later-greater” principle originates from associating nu...
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David Barner @drbarner.bsky.social · 5h
🚨🚨🚨Fez hat paper alert 🚨🚨🚨
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David Barner @drbarner.bsky.social · 14h
Oh thank god.
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David Barner @drbarner.bsky.social · 15h
Am I afraid my teenager will abuse drugs, vote for the wrong political party, or join a strange cult. Sure, yes, but I may have discovered my greatest fear…
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David Barner @drbarner.bsky.social · 04/10/2026
They skipped right over sharks with lasers. www.nytimes.com/2026/10/04/w...
nytimes.com
Superpowers Race to Put Nuclear Reactors on the Moon
The United States wants a reactor on the moon by 2030. A Russian-Chinese alliance is working on one for 2036. Some leading scientists say the danger is great.
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David Barner @drbarner.bsky.social · 04/10/2026
Here‘s a link to the final version! osf.io/preprints/ps...
osf.io
OSF
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David Barner @drbarner.bsky.social · 03/10/2026
Aside from being a crazy phenomenon, what I think is most interesting here is what it tells us about lexical concepts. Mahesh & I propose that the specification of reference to even simple things like forks is abductive - there are no lexical necessary & sufficient conditions for reference.
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David Barner @drbarner.bsky.social · 03/10/2026
(I clearly can’t count - should say “five” lol).
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David Barner @drbarner.bsky.social · 03/10/2026
This paper shows that teaching kids names for parts of novel objects precludes their counting after the objects are broken, and that prior exposure to words like piece and part to label things does too. www.sciencedirect.com/science/arti...
sciencedirect.com
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David Barner @drbarner.bsky.social · 03/10/2026
This paper shows kids count parts with known names less - eg, arms, wheels, wings, etc. Also they will count an object as “two” after seeing it cut before their eyes, and after just counting it as “one”. onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
Piecing together numerical language: children's use of default units in early counting and quantification
When asked to ‘find three forks’, adult speakers of English use the noun ‘fork’ to identify units for counting. However, when number words (e.g. three) and quantifiers (e.g. more, every) are used wit...
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David Barner @drbarner.bsky.social · 03/10/2026
Yes! Providing alternative labels - whether partitive expressions or competing part names (familiar or novel) reduce these errors substantially. Closer or aligned spacing makes small differences but the errors are robust especially with real objects. Will add links below!
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David Barner @drbarner.bsky.social · 02/10/2026
We conclude that although words like "fork" can label partial objects, adults exclude them whenever they can encode them as "parts" of a larger object (i.e., there's evidence that other parts exist), while kids struggle to access alternative labels for parts & count them as wholes.
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David Barner @drbarner.bsky.social · 02/10/2026
When participants were asked to count the mugs, adults basically never did, regardless of speaker goals, children continued to do so at elevated rates.
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David Barner @drbarner.bsky.social · 02/10/2026
Providing intentional cues about speaker goals helped adults & kids, but only very slightly. For example, children heard a sentence like "Hey Penguin! Can you get some mugs?" and in one condition heard the goal "We want to drink some tea!" (following the methods of S&A).
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David Barner @drbarner.bsky.social · 02/10/2026
In the study, we also considered whether the intended function of objects might play a role in exclusion, as argued by Syrett & Aravind. Maybe adults exclude a half fork because they know speakers have useful forks in mind, whereas kids don't?
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David Barner @drbarner.bsky.social · 02/10/2026
Adults were substantially more likely to use words like "piece" and "part" - children almost never did - and in both groups this tendency was significantly greater when complementary parts were present.
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David Barner @drbarner.bsky.social · 02/10/2026
In a follow-up we showed kids & adults images like these & simply asked them to label what they saw.
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David Barner @drbarner.bsky.social · 02/10/2026
So, kids count partial objects both with and w/o complementary parts, & adults do so only when complementary parts are absent. Why don't kids use the presence of these parts to restrict counting? We show that it's because they don't spontaneously encode them with the labels "piece" or "part".
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David Barner @drbarner.bsky.social · 02/10/2026
However, as soon as these same partial objects are accompanied by complementary parts, adults no longer count partial objects as "one" each, presumably because they now encode them as "pieces of forks" rather than as forks. They either exclude both complementary parts, or "count-combine".
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David Barner @drbarner.bsky.social · 02/10/2026
Our study, and work by Syrett & Aravind finds that the adult semantics allows partial objects to be named & counted - and most count "four forks" in images like this.
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David Barner @drbarner.bsky.social · 02/10/2026
A new paper, to appear in Dev Psych. Why do kids as old as 5 or 6 count parts of things as though they were whole objects? We argue that this is pragmatic failure due to kids' inability to access alternative descriptions like "piece of fork". osf.io/preprints/ps...
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Reposted by David Barner
samuel mehr @mehr.nz · 27/09/2026
another day, another bit of evidence that the scientists who willingly hand over proprietary information to AI firms may experience some consequences
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David Barner @drbarner.bsky.social · 26/09/2026
How does the NYTimes get top movies and books so wrong, but get TV so right? www.nytimes.com/interactive/...
nytimes.com
The 100 Best TV Shows of the 21st Century
More than 500 influential stars, showrunners and other notable names in the world of TV voted on the best series released since Jan. 1, 2000. See what they chose.
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David Barner @drbarner.bsky.social · 23/09/2026
So, the pet inspector at LAX is A. Ventura.
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Reposted by David Barner
Martin Zettersten @mzettersten.bsky.social · 22/09/2026
Our department at UC San Diego is hiring a new tenure-track Assistant Professor. Open area, research addressing foundational issues in cogsci using modern computational methods. I love my department, and you will too. Apply!! apol-recruit.ucsd.edu/JPF04633 #cogscisci #cogsci #DevPsyc #PsychSciSky
apol-recruit.ucsd.edu
Assistant Professor in Cognitive Science
University of California, San Diego is hiring. Apply now!
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Reposted by David Barner
Katie Mack @astrokatie.com · 20/09/2026
Fully electric aviation has some major challenges (mostly: batteries are heavy and don't get lighter as they get used up) but I love the idea of decreasing aircraft emissions through a hybrid approach, perhaps as a step toward new, clever solutions for fully electric air transport in the future.
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David Barner @drbarner.bsky.social · 17/09/2026
I couldn’t comprehend the scale of this until they explained the 4.5 billion swimming pool thing, which made it SO much easier to visualize.
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David Barner @drbarner.bsky.social · 16/09/2026
A volume in honor of Danny Fox!
amazon.com
A Festschrift for Danny Fox: MIT Working Papers in Linguistics 98 (MITWPL)
Buy A Festschrift for Danny Fox: MIT Working Papers in Linguistics 98 (MITWPL) on Amazon.com ✓ FREE SHIPPING on qualified orders
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Reposted by David Barner
Zoe Drayson @zoedrayson.bsky.social · 15/09/2026
Attention philosophers of language who also work in theoretical linguistics: the Philosophy department and the Linguistics department at UC Davis are jointly hiring a TT Assistant Professor. Apply! recruit.ucdavis.edu/JPF07874
recruit.ucdavis.edu
Department of Philosophy/Linguistics - Philosophy of Language/Computational Linguistics
University of California, Davis is hiring. Apply now!
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Reposted by David Barner
Lindsey Powell @lindseypowell.bsky.social · 09/09/2026
UCSD Psychology is hiring!! We’re seeking a new assistant professor colleague who studies high-level human cognition, broadly construed. Please share and/or apply! apol-recruit.ucsd.edu/JPF04646
apol-recruit.ucsd.edu
Assistant Professor in High-level Human Cognition
University of California, San Diego is hiring. Apply now!
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David Barner @drbarner.bsky.social · 06/09/2026
The baggage crew at YUL Montreal is so incredibly slow that I’m (low key?) relieved my bags are delayed and will be delivered to my house.
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samuel mehr @mehr.nz · 05/09/2026
I got a text from an academic who's sure the editorial rejection they received, from a v good journal that I also publish in and review for, is AI-written, or at least heavily AI-edited. I read the letter and can't say I disagree with friend's assessment If editors are doing this too, boy I dunno
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Razzball @razzball.bsky.social · 04/09/2026
lol
Chess.com
skill issue
@chesscom • 23h
Elon Musk
X
&* @elonmusk • 1d
Replying to @Rainmaker1973
The actual number of moves that are not utterly stupid in chess is tiny and chess will be fully solved one day
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Elon Musk
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@elonmusk • 8h
Chess is hard for humans, but not for computers.
One day, it will be fully solved like checkers.
Between now and then, or even after, have fun.
People enjoy many games/sports where machines are vastly betterThere are more possible chess games, by about 40 orders of magnitude, than atoms in the observable universe. To solve chess, you'd have to map them all. Good luck.
Quote
Elon Musk

@elonmusk
·
8h
Replying to @chesscom
Chess is hard for humans, but not for computers. One day, it will be fully solved like checkers. 

Between now and then, or even after, have fun. People enjoy many games/sports where machines are vastly better.
Elon Musk

@elonmusk
Wrong, all legal chess positions are ~40 oom less than the estimated atoms in the Universe. And ASI will figure out ways to solve and compress that are far beyond what we could possibly comprehend. 

(Here I am arguing with some random intern at a chess website 🤦‍♂️)
6:35 AM · Sep 4, 2026
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Elon Musk v X @elonmusk • 2h
Replying to @chesscom
Wrong, all legal chess positions are ~40 oom less than the estimated atoms in the Universe. And ASI will figure out ways to solve and compress that are far beyond what we could possibly comprehend.
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@chesscom • 46m|
even my friends don't text me back that fast
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David Barner @drbarner.bsky.social · 04/09/2026
Some people don't realize how brutally obvious it is that they're using AI to do their jobs.
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Gasper Begus @begus.bsky.social · 25/08/2026
Berkeley Linguistics is hiring a semanticist! Consider applying and spreading the word! Our department was founded 125 years ago as the first linguistics department in the country. This is a nice celebration of Berkeley linguistics legacy! aprecruit.berkeley.edu/JPF05458
aprecruit.berkeley.edu
Assistant Professor - Semantics - Linguistics
University of California, Berkeley is hiring. Apply now!
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David Barner @drbarner.bsky.social · 25/08/2026
Also: If we could vascularize, add some eyeballs, flippers, etc. these could make pretty intriguing aquarium pets.
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David Barner @drbarner.bsky.social · 25/08/2026
This is (actually) cool but I’m waiting for the HBOs have theory of mind study. www.nature.com/articles/s41...
nature.com
Human brain organoids record the passage of time over multiple years - Nature
Human brain organoids were developed for over five years in culture to demonstrate that brain cells can continue to mature and record the passage of time, following human-specific endogenous programs,...
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Reposted by David Barner
Rebecca Solnit @rebeccasolnit.bsky.social · 22/08/2026
Also this is the best map I've seen of where the water goes. 79% to ag, 56% of that 79% to livestock.
nytimes.com
The Colorado River Is Shrinking. See What’s Using All the Water. (Published 2023)
Hint: It’s less about long showers and more about what’s for dinner.
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Hilary Barth @hilarybarth.bsky.social · 17/08/2026
Job ad - please share! wesleyan.wd5.myworkdayjobs.com/en-US/career...
wesleyan.wd5.myworkdayjobs.com
Lab Coordinator
The Cognitive Development Lab and the Reasoning and Decision Making Lab at Wesleyan University (Dr. Hilary Barth and Dr. Andrea Patalano) announce a full-time joint Lab Coordinator position. The Lab C...
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David Barner @drbarner.bsky.social · 11/08/2026
Getting strong post-twitter collapse vibes from the OSF implosion, sorting through the Mastodon’s of the repo world…
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Uri Simonsohn @urisohn.bsky.social · 11/08/2026
Here is what i think the head-to-head comparison of ResearchBox vs Zenodo look like as OSF replacements. If I am missing an important attribute, let me know, will update accordingly.
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Lisa DeBruine @debruine.bsky.social · 11/08/2026
You can use this R function to download all of the files associated with an OSF project. Improvements are coming in the next version to include registrations. Should we add a function to download all your public and private projects? osf_file_download(“abcde”) www.scienceverse.org/metacheck/
scienceverse.org
Check Research Outputs for Best Practices
A modular, extendable system for checking research outputs for best practices using text search, R code, and/or (optional) LLM queries.
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Brian Nosek @briannosek.bsky.social · 11/08/2026
Over the next several months, we will phase out some popular OSF features. These changes do not affect current public content, which remains safe and accessible. We have prepared support material to help users adapt. I am very sorry for the disruption to your work. Please read this post for details.
cos.io
OSF Changes | Center for Open Science
We are preparing substantial changes to OSF that will reduce its functionality, focus OSF on its unique strengths, and move toward an integrated model with complementary services. As part of that shif...
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Sholto David @sholtodavid.bsky.social · 06/08/2026
A tool used to rephrase plagiarised text changed "final solution" to "mass killing of an ethnic group" in a chemistry paper. Now retracted thanks to a PubPeer user who spotted this. pubpeer.com/publications...
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David Barner @drbarner.bsky.social · 07/08/2026
Oh funny: I was referring to the exceptionally bad adaptation of Vladimir but it’s true that there’s also a tv version of Straight Man. Wow.
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David Barner @drbarner.bsky.social · 07/08/2026
Insanely cringe and bad
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David Barner @drbarner.bsky.social · 06/08/2026
Vladimir has echoes of this book that make it worthwhile; but whatever you do, do NOT watch the tv series.
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David Barner @drbarner.bsky.social · 05/08/2026
How can I feel so happy and so sad at the same time? Oh and JEALOUS!
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Ebru Evcen @ebruevcen.bsky.social · 05/08/2026
so lucky to have worked with @drbarner.bsky.social and everyone in the lab and beyond @urvi.bsky.social @kostaboskovic.bsky.social @knle.bsky.social. You've always inspired me with your super cool work, and I've grown so much with you all 🧡
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Ebru Evcen @ebruevcen.bsky.social · 05/08/2026
I'm very happy to share that I'll be joining @bergelsonlab.bsky.social at Harvard as a postdoc in September!! We'll work on how babies learn word meanings, and tons more!
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