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Reposted by Julien Mayor

ingmarvisser.bsky.social @ingmarvisser.bsky.social · 28/09/2026

This was a fantastic team effort across 30+ labs 🌍 Paper (open access), data & code all public. > 📄 doi.org/10.1111/desc... > 💻 github.com/manybabies/m... > #ManyBabies #InfantCognition #OpenScience #DevSci, lead team: Andreea Geambaşu, Melanie Soderstrom, and Claartje Levelt

doi.org

ManyBabies 3: A Multi‐Lab Study of Infant Algebraic Rule Learning

The ability to learn and apply rules lies at the heart of cognition. In a seminal study, Marcus et al. (1999) reported that 7-month-old infants learned abstract rules over syllable sequences and were...

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Reposted by Julien Mayor

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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Julien Mayor @julienmayor.bsky.social · 03/06/2026

Do bilingual children differ from monolinguals when learning new words? Monolinguals tend to start learning one word for one object, but surely this doesn’t hold for bilingual children, right? A brief dive into our latest paper with @mysia1.bsky.social : www.sciencedirect.com/science/arti...

sciencedirect.com

More like guidelines than hard rules: Bilinguals accept lexical overlap despite using mutual exclusivity

Mutual exclusivity (ME), the tendency that young children have to select a novel object upon hearing a novel label, gives children a basis to select a…

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Julien Mayor @julienmayor.bsky.social · 22/05/2026

Happy to see the hard work of our students getting recognition! 🎉 Kudos to Akvile Sinkeviciute for her MSc thesis (!) ending up in the top10% articles in Language Learning, showing that bilinguals perceive colours differently depending on the language they engage in! doi.org/10.1111/lang... 1/2

onlinelibrary.wiley.com

<em>Language Learning</em> | Language Learning Research Club Journal | Wiley Online Library

A one-page Accessible Summary of this article in non-technical language is freely available in the Supporting Information online and at https://oasis-database.org.

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Julien Mayor @julienmayor.bsky.social · 11/02/2026

Young children usually understand more words than they can say: a “comprehension–production gap”. In a new study, we found that children with Williams syndrome (WS) have a unique profile: their gap is significantly reduced compared to other groups. 🧵 #LanguageDevelopment #WilliamsSyndrome #devpsyc

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Julien Mayor @julienmayor.bsky.social · 12/11/2025

New paper challenging the didactic role of Infant-Directed Speech (IDS) We hypothesised that parents use IDS as a didactic tool by acoustically emphasising unknown words. Analysing 38k speech segments (182 parents of 8-18m olds) => NO evidence for a didactic strategy! doi.org/10.1037/dev0002077

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Reposted by Julien Mayor

Mike Frank @mcxfrank.bsky.social · 20/06/2025

Is anyone talking about the big design flaws in this study, e.g. 1) small N, btwn subject design, 2) v. heterogeneous sample, 3) writing prompt confounded with condition (really!), 4) vast number of measures with no preregistration? I can't believe this is getting so much press...

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Reposted by Julien Mayor

simine vazire @simine.com · 08/05/2025

My editorial on how journals can earn trust. We often use journal names as proxies for quality. This is bad bc it’s not valid. But it could be. Editors could make journal name a valid signal. And we could place value on journals that show us how they do that. journals.sagepub.com/doi/full/10....

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Julien Mayor @julienmayor.bsky.social · 06/05/2025

Forget just birth order for early language! (it's kinda U-shaped anyway...) We introduce a *better* measure (capturing more variance): a household "child-to-caregiver" ratio, where old-enough siblings are considered caregivers, rather than being another child competing for parental resources. 1/

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Reposted by Julien Mayor

Timo B. Roettger @timoroettger.bsky.social · 20/03/2025

🚨🚨🚨 I'm hiring a Postdoc for a 3-year position to come work with me at the University of Oslo using iterative learning experiments to understand the evolution of sound symbolism. Please share widely. 🔴 Deadline is May 31st '25 ⏲️ Desired starting date is Fall '25 shorturl.at/vSTZx

shorturl.at

Postdoctoral Research Fellow connected to "ICONIC" (277523) | University of Oslo

Job title: Postdoctoral Research Fellow connected to "ICONIC" (277523), Employer: University of Oslo, Deadline: Saturday, May 31, 2025

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Julien Mayor @julienmayor.bsky.social · 24/02/2025

One more week to apply for the Associate Professor position in Developmental Psychology! Great opportunity to join us in Oslo - academic freedom and easy access to nature... #DevSci #devpsy #openscience

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Reposted by Julien Mayor

Sarah Kendzior @sarahkendzior.bsky.social · 08/02/2025

New article! On a certain plutocrat invading our government to steal our future: sarahkendzior.substack.com/p/the-miners

sarahkendzior.substack.com

The Miners

The men who would strip the future for parts.

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Reposted by Julien Mayor

Dan Quintana @dsquintana.bsky.social · 21/01/2025

We also just announced a position for artificial intelligence in psychology www.jobbnorge.no/en/available... There were a few years that not much was announced, but things have picked up a little bit more recently

jobbnorge.no

Associate Professor - Artificial Intelligence in Psychology (273074) | University of Oslo

Job title: Associate Professor - Artificial Intelligence in Psychology (273074), Employer: University of Oslo, Deadline: Monday, March 17, 2025

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Reposted by Julien Mayor

Dan Quintana @dsquintana.bsky.social · 21/01/2025

Our department has just announced a new permanent associate professor position in developmental psychology, come join us at @uio.no! www.jobbnorge.no/en/available...

Qualifications

Necessary requirements:

Applicants must hold a degree equivalent to a Norwegian doctoral degree in psychology or equivalent.
Applicants must have a strong research record in Developmental Psychology, demonstrating quality, productivity, impact, dissemination, and innovation. They must have an extensive first-hand experience in observing, interviewing, or testing typical and/or atypical children and/or adolescents.
Applicants must have a solid undergraduate and/or graduate teaching record in Developmental Psychology, including course organisation, lectures, seminars, supervision, and examinations.
Applicants without a certified University Pedagogy Education are expected to obtain this certification within the first two years of employment. The Department will support this process by covering the costs of the courses at the University of Oslo and recognizing the hours of these courses in the departmental teaching accounting system.
Applicants must have fluent oral and written communication skills in English. Applicants who are not fluent in a Scandinavian language (Norwegian, Swedish, or Danish) will have to learn Norwegian within the first three years of employment to effectively participate in the functions required by the position (documented proficiency: CEFR Independent user Level B2 or equivalent). The Department will support learning Norwegian by covering the cost of the courses at the University of Oslo, reducing teaching and administrative duties, and providing a Norwegian coach.
Applicants must possess relevant personal qualities for the position, including: (i) High motivation for the position, (ii) High teaching and research ambition, and (iii) The ability to work both independently and collaboratively with students, administrative and academic colleagues / collaborators, and leaders.

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Julien Mayor @julienmayor.bsky.social · 20/01/2025

*** JOB ALERT *** Tenured Associate Professor position in Developmental Psychology at the University of Oslo. www.jobbnorge.no/en/available... Deadline: March 3rd, 2025. Please reach out in DM for details and repost widely! #openscience experience a plus! #DevSci #devpsy

jobbnorge.no

Associate Professor in Developmental Psychology (273166) | University of Oslo

Job title: Associate Professor in Developmental Psychology (273166), Employer: University of Oslo, Deadline: Monday, March 3, 2025

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Reposted by Julien Mayor

Jon Michael Gran @jmgran.bsky.social · 20/01/2025

We're still seeking candidates interested in causal inference and/or survival analysis for a postdoc position in Oslo. Deadline January 31. Please apply or forward this to anyone who might be interested! www.jobbnorge.no/en/available...

jobbnorge.no

Four year postdoc position at the Oslo Centre for Biostatistics and Epidemiology (OCBE) (272144) | University of Oslo

Job title: Four year postdoc position at the Oslo Centre for Biostatistics and Epidemiology (OCBE) (272144), Employer: University of Oslo, Deadline: Friday, January 31, 2025

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Julien Mayor @julienmayor.bsky.social · 10/01/2025

Further evidence (this time with consonants) that, from an acoustic point of view, infant-directed speech (IDS) does not offer infants with a cleaner signal! #DevSci #langsky #devpsy

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Julien Mayor @julienmayor.bsky.social · 18/12/2024

Interested in doing a PhD on language acquisition in Oslo? Check application process: www.jobbnorge.no/en/available... and feel free to reach out for more information! PS. We have a nice growing community including Natalia Kartushina, Luca Onnis, @audunrosslund.bsky.social, and many more!

jobbnorge.no

Doctoral research fellowships in linguistics and verbal communication (272418) | University of Oslo

Job title: Doctoral research fellowships in linguistics and verbal communication (272418), Employer: University of Oslo, Deadline: Friday, February 28, 2025

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Reposted by Julien Mayor

Mike Frank @mcxfrank.bsky.social · 03/12/2024

Three ManyBabies projects - big collaborative replications of infancy phenomena - wrapped up this year. The first paper came out this fall. I thought I'd take this chance to comment on what I make of the non-replication result. 🧵 bsky.app/profile/laur...

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Julien Mayor @julienmayor.bsky.social · 29/11/2024

Heroic effort collecting, processing and analysing this longitudinal dataset of infant-directed speech... Watch @audunrosslund.bsky.social space for more exciting results on how IDS relates to infant language development!

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Reposted by Julien Mayor

Audun Rosslund @audunrosslund.bsky.social · 24/10/2024

Can't get enough of infant habituation designs!?💥 In our new paper, @julienmayor.bsky.social, Alex Cristia, Natalia Kartushina and I tested native and non-native vowel discrimination in 6-month-old Norwegian infants using eye-tracking. 👶👀 1/

sciencedirect.com

Native and non-native vowel discrimination in 6-month-old Norwegian infants

In the current preregistered study, we tested n = 67 6-month-old Norwegian infants’ discrimination of a native vowel contrast /y-i/ and a non-native (…

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Reposted by Julien Mayor

Darren Dahly @statsepi.bsky.social · 24/10/2024

Clinical Researchers: I am here to warn you about a meteor hurling towards us. That meteor represents increasing scrutiny of clinical research; and in particular how we approach data collection, analysis, interpretation and reporting. Prepare now, or face the consequences. 1/

Title slide: Acting as if our research might matter - Analyzing data

Image: A meteor about to strike the earth.

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Reposted by Julien Mayor

Audun Rosslund @audunrosslund.bsky.social · 20/09/2024

🚨 New paper! 🚨 Myself, @julienmayor.bsky.social and Natalia Kartushina investigated the relationship between shared reading, screen time, and vocabulary size in n=1,442 Norwegian infants from diverse SES backgrounds. Spoiler alert: Get out those books! 📚👶 1/5

cambridge.org

Associations between shared book reading, daily screen time and infants’ vocabulary size | Journal of Child Language | Cambridge Core

Associations between shared book reading, daily screen time and infants’ vocabulary size

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Julien Mayor @julienmayor.bsky.social · 18/06/2024

On my way to the Workshop on Infant Language Development - so excited that I realised I have my kids clothes in my luggage, except they aren’t with me on this trip… I guess the only thing to do is to go #WILD ? #parenting

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Julien Mayor @julienmayor.bsky.social · 04/06/2024

Many thanks @chbergma.bsky.social and @helenahartmann.bsky.social for making the "big team science" panel discussion such a great event!

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Reposted by Julien Mayor

Christina Bergmann @chbergma.bsky.social · 04/06/2024

That was such a great event, thanks to everyone involved. And let me share here what was one of my closing messages: Why haven't you been part of a big team science project yet?

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Julien Mayor @julienmayor.bsky.social · 03/06/2024

I cannot wait for your panel discussion on "Big Team" science! Join us tomorrow at NORRN's 3rd annual conference (www.norrn.no for details - and please ignore the automatic caption below saying "danish"!!!)

norrn.no

Danish Reproducibility Network

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Julien Mayor @julienmayor.bsky.social · 16/05/2024

🔵 Is blue always just blue? Not for everyone! 🤯 Lithuanian-Norwegian bilinguals perceive blue differently depending on the language they're thinking in. Dive into our study exploring the fascinating link between language and vision: onlinelibrary.wiley.com/doi/full/10....

onlinelibrary.wiley.com

<em>Language Learning</em> | Language Learning Research Club Journal | Wiley Online Library

A one-page Accessible Summary of this article in non-technical language is freely available in the Supporting Information online and at https://oasis-database.org.

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Reposted by Julien Mayor

Johns Hopkins Berman Institute of Bioethics @bermaninstitute.bsky.social · 07/02/2024

Open science — embrace it before it’s too late: A UNESCO report laments the lack of progress in making science more collaborative. Greater awareness could aid efforts to achieve the UN’s Sustainable Development Goals. www.nature.com/articles/d41...

nature.com

Open science — embrace it before it’s too late

A UNESCO report laments the lack of progress in making science more collaborative. Greater awareness could aid efforts to achieve the UN’s Sustainable Development Goals. A UNESCO report laments the ...

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Julien Mayor @julienmayor.bsky.social · 08/02/2024

New paper alert: bit.ly/3UF7bR0 🎉 We found weak alignment btw parental reports of word comprehension & production with direct measures (tablet 4-AFC task) of their child's emotion comprehension from 2 to 5y of age. => We need reliable tools to assess emotion word comprehension in childhood!

Average Production and Accuracy Across Emotion Words for Every Child Sorted by Age Group. Lightly Colored Areas Indicate 95% Confidence Intervals. The Dashed Line Indicates Recognition Accuracy Chance Level of 25%.

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Julien Mayor @julienmayor.bsky.social · 25/01/2024

now with tags for our paper on infant pacifier use and lexical development! onlinelibrary.wiley.com/doi/epdf/10.... #devpsychsky #devpsycsky #DevPsyc #DevSci #DevPsy #CogDev #pedspsych #pediatricpsychology #pedpsych #thisispedpsych #PsychSciSky #Psychology #PsychSci am I missing any? 😅

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Julien Mayor @julienmayor.bsky.social · 25/01/2024

Remember Bruderer et al. 2015, showing that infants with teething toys struggle with sound discrimination? 👶 We thought: do SUSTAINED, rather than momentary, restrictions to the production system (pacifiers) associate with lexical development? The do! See: onlinelibrary.wiley.com/doi/10.1111/...

Infant vocabulary size as a function of pacifier use.

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Julien Mayor @julienmayor.bsky.social · 19/10/2023

Congratulations to the lead team! Also, shameless plug - the awesome webcam-based eye-tracking solution used here (Webgazer) is also integrated in our free, open-source custom-based testing platform for developmental studies, e-Babylab! link.springer.com/article/10.3... #DevPsyc #DevSci #DevPsy

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Julien Mayor @julienmayor.bsky.social · 10/10/2023

Hi, I am new to BSKY - brief intro! I am a prof in dev. psychology in Oslo, interested in how babies learn words & perceive speech, but also how to design tools that help rapidly evaluate their language skills. More details on my research: www.sv.uio.no/psi/english/... #DevPsyc #DevSci #DevPsy

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