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Martin Zettersten

@mzettersten

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

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Latest posts by Martin Zettersten @mzettersten

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Less is more: Probabilistic reduction is best explained by small-scale predictability measures The primary research questions of this paper center on defining the amount of context that is necessary and/or appropriate when investigating the relationship between language model probabilities and ...

We wrote a thing -- showing you don't need LLMs to model language production dynamics like the tendency for speakers to reduce predictable words. All you have to do is better model how speech rate varies depending on where a word is and how long the utterance is. arxiv.org/abs/2512.23659

30.12.2025 13:48 ๐Ÿ‘ 89 ๐Ÿ” 22 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 3
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Assistant Teaching Professor in Computational Social Science and Cognitive Science University of California, San Diego is hiring. Apply now!

Our department is hiring an Assistant Teaching Professor!! This is a joint-appointed position with Computational Social Sciences (css.ucsd.edu). It's 75+ degrees F and sunny today, just thought I'd mention apol-recruit.ucsd.edu/JPF04461

27.02.2026 14:42 ๐Ÿ‘ 43 ๐Ÿ” 28 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 4
Microsabbaticals at Princeton Psychology Microsabbaticals at Princeton Psychology provide a several-week-long visit to our department for early-career faculty. The program focuses on early-career scholars who would benefit from interactions ...

Are you a junior faculty member interested in spending 2-4 weeks at Princeton Psych? Consider applying for our Microsabbatical program! Itโ€™s a fully funded visit for professional development and creating long-term collaborations.
psych.princeton.edu/diversity/mi...

18.02.2026 20:04 ๐Ÿ‘ 61 ๐Ÿ” 49 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 2
Book cover. A silhouette of a person's head filled with colorful geometric shapesโ€”perhaps symbolizing cognitive resources or deployment thereof. The style is attractive and modern, if generic.

text: 
The Rational Use of Cognitive Resources
Falk Lieder, Frederick Callaway, Thomas L. Griffithts

Book cover. A silhouette of a person's head filled with colorful geometric shapesโ€”perhaps symbolizing cognitive resources or deployment thereof. The style is attractive and modern, if generic. text: The Rational Use of Cognitive Resources Falk Lieder, Frederick Callaway, Thomas L. Griffithts

I'm excited to announce that I had my first (co-authored) book published today! "The Rational Use of Cognitive Resources" with Falk Lieder and Tom Griffiths (@cocoscilab.bsky.social ). You can read it for free! (see thread)

18.02.2026 01:05 ๐Ÿ‘ 142 ๐Ÿ” 45 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
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Thrilled to share our latest paper, out now in Science Advances! We explored the development of cooperative behaviors โ€” fairness, trustworthiness, forgiveness, & honesty โ€”ย  across five societies, culturally contextualizing them & seeing how they correlate. (1/5) www.science.org/doi/full/10....

07.02.2026 15:09 ๐Ÿ‘ 126 ๐Ÿ” 44 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 3
Apes Share Human Ability to Imagine
Apes Share Human Ability to Imagine YouTube video by Johns Hopkins University

Imagination in bonobos!

I am thrilled to share a new paper w/ Amalia Bastos, out now in @science.org

We provide the first experimental evidence that a nonhuman animal can follow along a pretend scenario & track imaginary objects. Work w/ Kanzi, the bonobo, at Ape Initiative

youtu.be/NUSHcQQz2Ko

05.02.2026 19:18 ๐Ÿ‘ 291 ๐Ÿ” 110 ๐Ÿ’ฌ 10 ๐Ÿ“Œ 10

The Visual Learning Lab is hiring TWO lab coordinators!

Both positions are ideal for someone looking for research experience before applying to graduate school. Application deadline is Feb 10th (approaching fast!)โ€”with flexible summer start dates.

30.01.2026 23:21 ๐Ÿ‘ 48 ๐Ÿ” 41 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Pseudo Effects: How Method Biases Can Produce Spurious Findings About Close Relationships - Samantha Joel, John K. Sakaluk, James J. Kim, Devinder Khera, Helena Yuchen Qin, Sarah C. E. Stanton, 2025 Research on interpersonal relationships frequently relies on accurate self-reporting across various relationship facets (e.g., conflict, trust, appreciation). Y...

In a new paper, my colleagues and I set out to demonstrate how method biases can create spurious findings in relationship science, by using a seemingly meaningless scale (e.g., "My relationship has very good Saturn") to predict relationship outcomes. journals.sagepub.com/doi/10.1177/...

10.09.2025 18:18 ๐Ÿ‘ 195 ๐Ÿ” 80 ๐Ÿ’ฌ 12 ๐Ÿ“Œ 12
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Junior Specialist - Lapate Laboratory, Department of Psychological & Brain Sciences University of California Santa Barbara is hiring. Apply now!

๐Ÿ“ฃ Our lab is hiring a full-time RA/lab manager! Join us in beautiful Santa Barbara to study the neural bases of affect-cognition interactions using fMRI and brain stimulation. Great stepping stone to a PhD in cognitive/affective neuro ๐Ÿง ๐Ÿฌ๐Ÿ–๏ธ Apply by Jan 22: recruit.ap.ucsb.edu/JPF03048

13.01.2026 22:23 ๐Ÿ‘ 42 ๐Ÿ” 29 ๐Ÿ’ฌ 4 ๐Ÿ“Œ 2

We are pleased to announce that the first LEVANTE data release is now publicly available!

To access and download the pilot data, follow instructions on researcher.levante-network.org/data. This data release accompanies the preprint linked in the thread.

12.01.2026 22:57 ๐Ÿ‘ 39 ๐Ÿ” 21 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

As an aside, this is my second experience with the reviewed preprint route at @elife.bsky.social and it is great! We will likely revise our paper thanks to thoughtful feedback from reviewers, but I am very happy that it is accessible in the meantime. I strongly recommend this model!

05.01.2026 21:39 ๐Ÿ‘ 6 ๐Ÿ” 3 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Peekbank Peekbank is an open database of infant looking-while-listening data

Oh, and while you're at it, also check out this spiffy refresh to the Peekbank website, courtesy of the unstoppable @adriansteffan.bsky.social : peekbank.stanford.edu

05.01.2026 22:19 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1

Very excited that this is now published at eLife - the first outcomes from a huge effort from the Peekbank team to see what we can learn about children's lexical development from collecting and standardizing lots and lots of looking-while-listening data. Check it out, and stay tuned!

05.01.2026 22:19 ๐Ÿ‘ 15 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

New book! I have written a book, called Syntax: A cognitive approach, published by MIT Press.

This is open access; MIT Press will post a link soon, but until then, the book is available on my website:
tedlab.mit.edu/tedlab_websi...

24.12.2025 19:55 ๐Ÿ‘ 122 ๐Ÿ” 41 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 3
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Curious about the human ability to extract regularities from sensory input (i.e., โ€œstatistical learningโ€) and individual differences therein? #CognitiveScience #Learning

Our #Consensus paper presents the collective insights of 27 researchers worldwide ๐ŸŒŽ ๐Ÿ’ฌ ๐ŸŒ ๐Ÿ’ฌ ๐ŸŒ ๐Ÿ’ฌ:
๐Ÿ”— doi.org/10.31234/osf...

24.09.2025 08:02 ๐Ÿ‘ 26 ๐Ÿ” 15 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
Fund Search Results | Giving to MIT

This is a fundraising post!

An anonymous donor is matching contributions to Children Helping Science up to 100K through the end of the year - if it's in your giving budget, please consider supporting open science infrastructure!

giving.mit.edu/search/node/...

Details below...

08.12.2025 15:50 ๐Ÿ‘ 22 ๐Ÿ” 22 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 8
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How physical information is used to make sense of the psychological world - Nature Reviews Psychology Reasoning about minds and reasoning about physical objects are governed by two distinct systems. In this Perspective, Liu et al. review research from developmental psychology and cognitive neuroscience that provides evidence for the interaction between psychological and physical reasoning systems.

A Perspective in Nature Reviews Psychology reviews research from developmental psychology and cognitive neuroscience that provides evidence for the interaction between psychological and physical reasoning systems. ๐Ÿ”’

03.12.2025 17:08 ๐Ÿ‘ 7 ๐Ÿ” 5 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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164 - Susan Engel: Do We Become Less Curious As We Grow Older?

NEW EPISODE OUT!

In this episode, Adani @adani.bsky.social chats with Dr. Susan Engel from Williams College about curiosity, invention, her journey into developmental psychology, and her latest book, The Intellectual Lives of Children!

๐ŸŽงLISTEN NOW:
open.spotify.com/episode/06WD...

22.11.2025 02:02 ๐Ÿ‘ 3 ๐Ÿ” 2 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Cool new work by rising star Kosta Boskovic on children's reasoning about age - super fun paradigm, check it out!!

02.12.2025 17:48 ๐Ÿ‘ 8 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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In our new tutorial, @meanwhileina.bsky.social and I walk you through meaningful hypothesis testing using a less known form of calculating Bayes Factor.

osf.io/preprints/ps...

People transitioning to Bayes often wonder how to decide if an effect is meaningful or not. Here you go... 1/๐Ÿงต

26.11.2025 18:47 ๐Ÿ‘ 27 ๐Ÿ” 13 ๐Ÿ’ฌ 5 ๐Ÿ“Œ 0

lots of invigorating discussion this year at #BUCLD2025. Unsurprisingly, LLMs as models & as tools made many appearances w/a wide range of views/claims/caveats ab what they can(not) tell us ab language development
I'm still chewing on a few things that seemed to get short shrift 1/4 ๐Ÿฆ๐Ÿฆ

10.11.2025 16:30 ๐Ÿ‘ 28 ๐Ÿ” 6 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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#BUCLD50 Symposium: โ€œInnateness is not a dirty word: Reframing the origins of language developmentโ€, by Shanley Allen, Marisa Casillas, Alejandrina Cristia, Michael C. Frank, Caroline Rowland, Leher Singh, and Paul Bloom!

Learn more at:
www.bu.edu/bucld/

#Innateness #LLM #LanguageDevelopment

19.10.2025 21:25 ๐Ÿ‘ 15 ๐Ÿ” 4 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Coupled Minds Lab Coupled Minds Lab โ€” social neuroscience of conversation, negotiation, and humanโ€“AI interaction.

Recruiting PhD students for Fall 2026!

The Coupled Minds Lab at @tamu.bsky.social will use a multimodal approach combining fMRI hyperscanning, computational modeling, and natural language processing to study how conversations transform minds. Learn more: coupled-minds.github.io

Due Date Dec 1

20.10.2025 00:40 ๐Ÿ‘ 13 ๐Ÿ” 8 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 1
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๐ƒ๐จ ๐ฒ๐จ๐ฎ ๐ซ๐ž๐š๐ฅ๐ฅ๐ฒ ๐ฐ๐š๐ง๐ญ ๐ญ๐จ ๐ฌ๐ž๐ž ๐ฐ๐ก๐š๐ญ ๐ฆ๐ฎ๐ฅ๐ญ๐ข๐ฅ๐ข๐ง๐ ๐ฎ๐š๐ฅ ๐ž๐Ÿ๐Ÿ๐จ๐ซ๐ญ ๐ฅ๐จ๐จ๐ค๐ฌ ๐ฅ๐ข๐ค๐ž? ๐Ÿ‡จ๐Ÿ‡ณ๐Ÿ‡ฎ๐Ÿ‡ฉ๐Ÿ‡ธ๐Ÿ‡ช

Hereโ€™s the proof! ๐๐š๐›๐ฒ๐๐š๐›๐ž๐ฅ๐‹๐Œ is the first Multilingual Benchmark of Developmentally Plausible Training Data available for 45 languages to the NLP community ๐ŸŽ‰

arxiv.org/abs/2510.10159

14.10.2025 17:01 ๐Ÿ‘ 42 ๐Ÿ” 16 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 1
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A large-scale study across the avian clade identifies ecological drivers of neophobia Neophobia (the aversive response to novelty) varies considerably across species and individuals, and can impact adaptability and survival. This study assesses neophobia in 1400 subjects from 136 bird ...

๐Ÿฆ Exciting news! Our new paper is out in PLOS Biology:
โ€œA large-scale study across the avian clade identifies ecological drivers of neophobia.โ€
Led by the #ManyBirds Project - 129 researchers, 82 institutions, 24 countries ๐ŸŒ
๐Ÿ”— journals.plos.org/plosbiology/...
@themanybirds.bsky.social

14.10.2025 18:44 ๐Ÿ‘ 64 ๐Ÿ” 39 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 11
infant data from experiment 1

infant data from experiment 1

conceptual schema for different habituation models

conceptual schema for different habituation models

title page

title page

results from experiment 2 with adults

results from experiment 2 with adults

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

29.09.2025 23:38 ๐Ÿ‘ 76 ๐Ÿ” 28 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2

Seems like a particularly cruel change to make without warning given the stress that reviewers often put on applicants' publication record. Presumably many strong students waited based on this apparent criterion, not because they didn't already have great ideas to propose.

26.09.2025 17:48 ๐Ÿ‘ 15 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Planning to be incremental: Scene descriptions reveal meaningful clustering in language production How do speakers plan complex descriptions and then execute those plans? In this work, we attempt to answer this question by asking subjects to describโ€ฆ

New paper: We argue that linearization in language production is a foraging process, with speakers navigating semantic and spatial clusters. Lead author: Karina Tachihara, former UC Davis postdoc, now faculty at UIUC!

www.sciencedirect.com/science/arti...

22.09.2025 22:44 ๐Ÿ‘ 68 ๐Ÿ” 14 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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Research Coordinator, Minds, Experiences, and Language Lab in Graduate School of Education, Stanford, California, United States The Stanford Graduate School of Education (GSE) seeks a full-time Research Coordinator (acting lab manager) to help launch and coordinate the Minds,.....

Iโ€™m hiring!! ๐ŸŽ‰ Looking for a full-time Lab Manager to help launch the Minds, Experiences, and Language Lab at Stanford. Weโ€™ll use all-day language recording, eye tracking, & neuroimaging to study how kids & families navigate unequal structural constraints. Please share:
phxc1b.rfer.us/STANFORDWcqUYo

15.09.2025 18:57 ๐Ÿ‘ 73 ๐Ÿ” 48 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
Abstract of the paper.

Abstract of the paper.

Title page of the paper.

Title page of the paper.

The Item Response Warehouse is a new data resource for psychometricians interested in developing methods using bigger and more diverse sets of instruments: itemresponsewarehouse.org

New paper out now at BRM: doi.org/10.3758/s134...

08.09.2025 03:28 ๐Ÿ‘ 53 ๐Ÿ” 13 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1