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Martin Zettersten

@mzettersten.bsky.social
1.8K followers 1.7K following 78 posts

Asst Prof UCSD Cognitive Science PI LIL Lab UCSD: lillab.ucsd.edu language development | cognitive development | learning mzettersten.github.io (he/his)

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Reposted by Martin Zettersten
JsonGeller @jgeller1phd.bsky.social · 02/10/2026
New tutorial finally in press with @rmkubinec.bsky.social @chelseaparlett.bsky.social and @matti.vuorre.com. It has everything you could possible want: Quippy headings, a whole lot of beta, bayesian analyses and frequentist analyses side by side in harmony. link.springer.com/article/10.3...
rdcu.be
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Jorge Morales @jorgemorales.me · 01/10/2026
Our lab is growing! We're looking for a graduate student to start next fall (applications due on Dec 1) and a postdoctoral researcher to start soon (ad coming soon; starting date is flexible, probably some time next year). subjectivitylab.org
subjectivitylab.org
The Subjectivity Lab · Duke University · Jorge Morales, PhD
Duke interdisciplinary research group led by Dr. Jorge Morales studying vision, mental imagery, consciousness, and introspection.
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Cognitive Science Society @cogscisociety.bsky.social · 29/09/2026
Many strong Elman Prize candidates are never nominated simply because no one thought to do it. Please repost! Your share might reach the colleague who writes the letter. Deadline: Nov 18 👇
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Martin Zettersten @mzettersten.bsky.social · 28/09/2026
Glad to see this large-scale replication attempt of rule learning in infants finally out. Bottom line: we find no evidence for an effect (650 infants from 30 labs) in a close conceptual replication of Marcus et al. 1999; no effect of potential moderators (e.g., age, method). 1/2
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ingmarvisser.bsky.social @ingmarvisser.bsky.social · 28/09/2026
New paper 🍼📄 ManyBabies 3 is out (open access, registered report in Developmental Science). 30 labs, 33 languages, 839 infants set out to replicate a textbook finding: 7-month-olds learn abstract rules from speech (@garymarcus.bsky.social et al., 1999). We didn’t find it. 🧵
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Josh de Leeuw @joshdeleeuw.bsky.social · 21/09/2026
DataPipe (pipe.jspsych.org) is ready for its post-OSF life. You can use it as before to save data from online experiments, but now the data can be sent to Zenodo, Google Drive, or a Dataverse instance. Existing OSF connections work until 11/16 I took this opportunity to do some major updates...
pipe.jspsych.org
DataPipe
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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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Jan Vanhove @janhove.bsky.social · 18/09/2026
New blog post: "Cluster analysis: A skeptic’s guide". In which I ask a few questions that social scientists wishing to identify hidden classes in their data ought to address. janhove.github.io/posts/2026-0...
A two-dimensional scatterplot showing a three-cluster solution.

Caption: "Figure 2: A visualisation of a Latent Profile Analysis fit. Such visualisations may help readers appreciate that the clusters aren’t nicely separated and that the researchers’ notion of clusters may not correspond to their own."Table of contents:

Refresher: What is cluster analysis?
What are the clusters for?
What clusters, exactly?
Does the pipeline work?
What does the solution look like?
When running follow-up analyses, how is the uncertainty in the cluster assignments taken into account?
Was it worth it?
Conclusion
References
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Michael Clemens @mclem.org · 12/09/2026
The US President's new proposal to tax international students has been approved by the White House for release this week. It's an unprecedented $100,000 tax on int'l grads who stay to work after graduation on Optional Practical Training (most grads do), a crucial bridge to remaining by any channel.
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Dorsa Amir @dorsaamir.bsky.social · 10/09/2026
This is a real photo from 1913. It hasn’t been colorized. It was made using a technique called the Autochrome Lumière which captured true color using microscopic dyed starch grains as color filters, decades before color film existed. Pretty incredible, no? More below 👇
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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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Kanishka Misra @kanishka.bsky.social · 01/09/2026
Saffran et al. (1996) were so close to coining labubu way before its time!
slide showing sequences of sounds from Saffran et al.:

tu pi ro go la bu bi da ku pa do ti go la bu tu pi ro pa do ti bi da ku go la bu

with labubi ~ labubu
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Sean Trott @seantrott.bsky.social · 31/08/2026
New paper out in @openmindjournal.bsky.social! "Large Language Models as Distributional Baselines for Language Tasks". With @jamichaelov.bsky.social , @camrobjones.bsky.social , Tyler Chang, and Ben Bergen. direct.mit.edu/opmi/article...
direct.mit.edu
Large Language Models as Distributional Baselines for Language Tasks
Abstract. In order to ask questions about the mechanisms underpinning human cognition, researchers must control for properties of stimuli that could confound detected effects. In experiments involving...
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Vera Kempe @vkempe.bsky.social · 30/08/2026
@damianblasi.bsky.social on the science of linguistic diversity is a must-listen: podcasts.apple.com/gb/podcast/m...
podcasts.apple.com
The natural history of linguistic diversity
Podcast Episode · Many Minds · 28 August · 1hr 33min
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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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Josh de Leeuw @joshdeleeuw.bsky.social · 11/08/2026
With the upcoming changes to OSF, DataPipe (pipe.jspsych.org) is migrating to a multi-backend model. We're currently developing support for Zenodo, Dataverse, and Google Drive. If there are other providers that you'd like to see as options please get in touch.
pipe.jspsych.org
DataPipe
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simine vazire @simine.com · 10/08/2026
Special issue at Psych Science on psychological science in the real world! Send us your best work looking at whether effects from the lab (or from theories) hold up in ecologically valid settings. Submission deadline: 15 January 2027 www.psychologicalscience.org/publications...
psychologicalscience.org
Special Issue Call for Submissions: “From Lab to Life: Psychological Science in the Real World”
Editors: Roni Porat and Vishnu SreekumarPsychological Science invites submissions presenting innovative research that brings psychological science “into the wild,” whether to strengthen its ecological...
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Jenny Saffran @jennysaffran.bsky.social · 10/08/2026
Can kids track how unfamiliar speakers use grammatical patterns to guess who is speaking? Yes they can, at least when the speakers are groups of nifty-looking aliens! Exciting new work on early sociolinguistic development by Yiran Chen and Lynna Tran in my lab. academic.oup.com/chidev/advan...
academic.oup.com
Children infer speaker groups from variation in morphosyntactic patterns
Abstract. Variation in how people use language provides powerful cues to social identity. As children join a language community, they must acquire such soc
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Freddy Kamps @fkamps.bsky.social · 29/07/2026
New paper! We found basic scene selectivity arises across the scene network early in infancy (i.e., by ~3.5 months old), prior to independent navigation experience www.pnas.org/doi/10.1073/...
pnas.org
The cortical scene processing network emerges in infancy, prior to independent navigation experience | PNAS
Sighted people rely on vision to recognize and navigate the local environment. By adulthood, human cortex contains at least three regions that resp...
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Ranked News @rankednews.bsky.social · 05/08/2026
Why being born helpless may be one of humanity’s greatest strengths: Human infants are born helpless and remain dependent for an unusually long time compared to other mammals, a trait that developmental psychologists are now rethinking as a feature rather than a limi… ranked.news/1214392?u=b
Article image
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Minds, Machines, and Brains (MMB) @mmb-journal.bsky.social · 02/08/2026
Hello world! 👋 We’re Minds, Machines, and Brains (MMB) 👤🤖🧠 a new open access journal from @mitpress.bsky.social exploring the principles of intelligence and cognition across natural and artificial minds. Submissions open this Fall! 🔗 direct.mit.edu/mmb
direct.mit.edu
Minds, Machines, and Brains | MIT Press
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jsPsych @jspsych.org · 26/07/2026
Response duration tracking is now an option in jsPsych 8.3.0. Decide whether to trigger responses on key press (current default) or wait for key release to get both initial response time and response duration. We handle edge cases like multiple keys being pressed and tabbing away from the browser.
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Damián Blasi @damianblasi.bsky.social · 23/07/2026
How many languages have existed over the Holocene—and what does that reveal about the design space of languages and cultures? Now out in @science.org www.science.org/eprint/QDZNY....
science.org
The rise and fall of language diversity through the Holocene
Characterizing the factors that have shaped linguistic diversity is fundamental for understanding human history, culture, and cognition. In this study, we combined statistical and social computational...
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Robert Hawkins @rdhawkins.bsky.social · 24/07/2026
good morning!! it's day 2 of #cogsci2026, and we're so excited to hear about new work from Seo-young Lee, Jess Mankewitz, Polina Tvilodub, Jinyi Kuang, and Karla Perez!
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Mike Frank @mcxfrank.bsky.social · 23/07/2026
If you’re at #cogsci2026, please come see presentations by some of the great folks collaborating with the Language and Cognition Lab at Stanford!
LangCog lab talks and posters at cogsci2026
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Benjamin Pitt @benjaminpitt.bsky.social · 23/07/2026
New paper finally out in @NatureComms with E. Leib, D. O’Shaughnessy, C. Gallardo, @sferrigno.bsky.social, and @spiantado.bsky.social. 📝Children across cultures discover the latent algorithms that structure what they see, even without instruction, feedback, or formal schooling.🧵 tinyurl.com/4a238m2d
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Vlad Ayzenberg @vayzenb.bsky.social · 22/07/2026
Excited to share our review in @cp-neuron.bsky.social with @lauriebayet.bsky.social and @mickbonner.bsky.social! We describe how implementing principles from child development can advance the mechanistic plausibility and capacities of AI models We packed A LOT into this review, here's a quick 🧵
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Erik Brockbank @erikbrockbank.bsky.social · 16/07/2026
When you meet someone new, what kind of questions do you ask? It’s tempting to think that *really* getting to know people is just a matter of asking the right questions. Excited to share the next chapter in ongoing work on what makes a *deep question* with amazing collaborators...
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Francesco Poli @francescopoli.bsky.social · 13/07/2026
New Preprint! We gave neural networks infant-like curiosity and let them free to explore. They grew brain-like architecture, followed human synaptic development, and even started to display compositional thought. So we think curiosity doesn't just come from a complex mind... it helps us build one 👇
biorxiv.org
Curiosity shapes brain-like architectures and functions
How does complex cognition emerge from simpler underlying processes? We show that two components are sufficient: infant-like curiosity and brain-like biophysical constraints jointly drive the emergenc...
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Martin Zettersten @mzettersten.bsky.social · 18/07/2026
Really excited about this new preprint spearheaded by @vboyce.bsky.social w/ @mcxfrank.bsky.social and the Peekbank team. It's a deep-dive into a large looking-while-listening dataset (>3000 children!), evaluating what analytic and design choices really matter for measurement osf.io/preprints/ps...
osf.io
OSF
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Gary Lupyan @glupyan.bsky.social · 17/07/2026
Just up: my entry on #Categorization for @oecs-bot.bsky.social - Western vs Buddhist ”classical” views, William James, behaviorism, prototypes, theories, chinchillas & mantis shrimp, neural nets — it‘s got it all. oecs.mit.edu/pub/mrj0pnj5...
oecs.mit.edu
Categorization
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Matthew Robison @matthewrobison.bsky.social · 15/07/2026
The Department of Psychology at Notre Dame is hiring! We have two TT Asst Prof ads out, one in cognitive psychology and another in developmental psychology. Come be my colleague in South Bend!
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Martin Zettersten @mzettersten.bsky.social · 16/07/2026
Fun new project led by @knle.bsky.social on how children integrate social reasoning and statistical information when learning new words! check out her thread for more deets
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Natalie Brito @nataliebrito.bsky.social · 07/07/2026
#ICIS2026 is underway! Chairing the Early Career Session - 10 early investigators were selected to present what’s new and exciting in the field! @infantstudies.bsky.social
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ManyBabies @manybabies.org · 07/07/2026
#ICIS2026 @mzettersten.bsky.social presenting about MB2P (Theory of Mind pupillometry) in the Early Career Symposium! 👏👏👏
Martin (in a blue Oxford shirt and khaki pants) at a dais, in front of a screen displaying mb2 collaborators, presenting at the ICIS 2026 conference in Panama City, Panama.
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ManyBabies @manybabies.org · 09/07/2026
#ICIS2026 @mzettersten.bsky.social taking about the MB5-Meta project, a systematic meta-analytical review of infant looking time preferences for novel vs. familiar visual stimuli. 💥 👀 🍎 Learn more here: manybabies.org/MB5-Meta/
Martin in front of an MB5-Meta acknowledgements slide featuring Anjie Cao, Katie Von Holzen, and Meghan TestermanMartin in front of a slide projected on a screen. The text reads: 
Meta-Analysis questions:
1. What is the overall distribution of effect sizes? Does it reflect robust evidence of both familiarity and novelty preferences? 
2. How does the effect size of looking preference change across age? 
3. Are effect sizes moderated by familiarization time?
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Kosta Boskovic @kostaboskovic.bsky.social · 13/07/2026
We know children make many inferences about others from their race and gender from early in development. But what about from their age, another highly salient and informative characteristic of people? We explore this question in a new pre-print with @drbarner.bsky.social! osf.io/preprints/ps...
osf.io
OSF
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Leher Singh @lehersingh.bsky.social · 01/07/2026
Excited to be editing a Developmental Science special issue on Culture, Context, and Brain Development with Heather Bortfeld, Laura Katus, and Bruce Rawlings. Seeking papers from diverse contexts using novel approaches! onlinelibrary.wiley.com/page/journal... Please share!
onlinelibrary.wiley.com
Developmental Science Call for Papers Culture, context, and brain development
Developmental Science is an international journal publishing contemporary scientific developmental psychology and developmental cognitive neuroscience research.
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Mike Frank @mcxfrank.bsky.social · 22/06/2026
If p < 0.05, you "reject the null." That's what many stats courses teach you to do. This week's Experimentology chapter argues that this binary, dichotomous frame can sometimes be useful but is the wrong default for psych experiments — there is a broader toolkit available! 🧵 experimentology.io
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Martin Zettersten @mzettersten.bsky.social · 11/06/2026
New mini perspective zooming out on some takeaways from the first four ManyBabies projects!
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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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Urvi Maheshwari ツ @urvi.bsky.social · 26/05/2026
New preprint w @carenwalker.bsky.social & @drbarner.bsky.social! We test the "minimal representations" hypothesis that explains gaps in 3yos modal reasoning. Against it, we find that even 2½yos reason about mutually exclusive possibilities... when goals are clear to them. osf.io/preprints/ps... 1/6
osf.io
OSF
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tal boger @talboger.bsky.social · 26/05/2026
Complexity is ubiquitous in the world around us. But different stimuli are complex for different reasons. Does the mind nevertheless represent a ‘unified’ notion of complexity across domains? In @nathumbehav.nature.com, @chazfirestone.bsky.social & I show the answer is: yes! osf.io/preprints/ps...
Complex and simple stimuli across a variety of domains. Even though these stimuli are complex for different reasons, we suggest the mind unifies them by their complexity. https://osf.io/preprints/psyarxiv/p9xe3_v1
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Mike Frank @mcxfrank.bsky.social · 18/05/2026
What is a psychological theory? Here's our take on this tricky and controversial question in this week's Experimentology chapter summary. Many things called "theories" in psychology aren't actually theories — they're frameworks. 🧵 experimentology.io
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jane-yang.bsky.social @jane-yang.bsky.social · 16/05/2026
Children acquire object category representations from their everyday experiences in the first few years of life. What do the inputs to this learning process actually look like? New preprint! arxiv.org/abs/2605.14990
arxiv.org
Characterizing the visual representation of objects from the child's view
Children acquire object category representations from their everyday experiences in the first few years of life. What do the inputs to this learning process look like? We analyzed first-person videos ...
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Mike Frank @mcxfrank.bsky.social · 11/05/2026
Many of us were taught experiments are for testing hypotheses. In Ch 1 of Experimentology, our free, open methods textbook, my coauthors and I argue differently: experiments are for estimating the magnitude of causal effects. This reframing has important consequences. 🧵 experimentology.io
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Rodney Tompkins @rtompkins.bsky.social · 07/05/2026
New review paper on the development of friendship psychology/ cognition (w/ @zoeliberman.bsky.social): By age 6, children appear to recognize friendship as a ranking-based relationship with outstanding social expectations and obligations. www.sciencedirect.com/science/arti...
sciencedirect.com
Young children's friendship expectations align with evolutionary frameworks
Across the lifespan, friends are critical social partners. Prominent evolutionary theories—such as the Banker's Paradox (Tooby & Cosmides, 1996)—propo…
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Jenny Saffran @jennysaffran.bsky.social · 23/04/2026
Fun new collab coming out in TICS (w/ Haley Weaver & Sudha Arunachalam) digging into the assumptions underlying the use of eye-gaze methods to study vocabulary development. Working on this paper really got us thinking - we hope it does the same for our readers! www.sciencedirect.com/science/arti...
sciencedirect.com
Looking forward: eye-gaze methods in vocabulary development research
Human multimodal processing abilities have provided researchers with an invaluable set of methods for interrogating language understanding. Even young…
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Brandon Woo @brandonwoo.bsky.social · 28/04/2026
My current lab manager is heading to grad school this fall, so I'm hiring a new one (shared with Zoe Liberman)! There's one week left to apply. We hope that this experience will help prepare someone for graduate studies and/or careers in research.
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Zoe Liberman @zoeliberman.bsky.social · 15/04/2026
Job alert! @brandonwoo.bsky.social and I are searching for a new lab manager. We are excited to add a new member to our awesome community of soc cog dev researchers! Spread the word :) Full ad here: recruit.ap.ucsb.edu/JPF03106
recruit.ap.ucsb.edu
Junior Specialist, Department of Psychological & Brain Sciences
University of California Santa Barbara is hiring. Apply now!
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