Status: COMPLETE

MB3 Collaboration Agreement

MB3 Lab Manual

Contact: Ingmar Visser

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839 babies tested by 43 labs

83 authors from 16 countries on Developmental Science preprint


In this project we investigate an ability that lies at the heart of cognition: to learn and to apply rules. We ask whether infants (from 5 to 12 months-old) can learn abstract algebraic rules over patterned syllable sequences and generalize those rules to novel syllable sequences. Despite the large research effort on the topic, questions remain about the robustness of the core finding, as many studies failed to find significant learning effects. We believe that a multi-lab approach with a large and diverse sample of infants has the potential to uncover whether and to what extent this core cognitive ability is available in young infants and how it varies across age and different developmental circumstances.



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Publications

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Visser, I., Geambașu, A., Kachergis, G., Oliveira, C. M., Rocha-Hidalgo, J., Zettersten, M., Ahamat, T. M., Alessandroni, N., Althaus, N., Arunachalam, S., Aussems, S., Axelsson, E., Aydin, Z., Baumgartner, H. A., Bergmann, C., Bettoni, R., Black, A., Bulf, H., Byers-Heinlein, K., … Levelt, C. (2026). ManyBabies 3: A Multi-Lab Study of Infant Algebraic Rule Learning. Developmental Science, (), .
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Ingmar Visser
Andreea Geambașu
George Kachergis
Cátia M. Oliveira
Joscelin Rocha-Hidalgo
Martin Zettersten
Teruni Ahamat
Nicolás Alessandroni
Nadja Althaus
Sudha Arunachalam
Suzanne Aussems
Emma L. Axelsson
Zeynep Aydin
Heidi A. Baumgartner
Christina Bergmann
Roberta Bettoni
Alexis K. Black
Hermann Bulf
Krista Byers-Heinlein
Chiara Capparini
Lily Carroll
Alexandra Carstensen
Rebekka Cebulla
Xiaoyun Chen
Kateřina Chládková
Benedetta Colavolpe
Rodica R. Constantine
Elísabet Eir Cortes
Frances L. Doyle
Anna Exner
Samuel H. Forbes
Laura Franchin
Alessandra Geraci
Judit Gervain
Nayeli Gonzalez-Gomez
Silje Hagelund
Erin E. Hannon
Naomi Havron
Sagi Jaffe-Dax
Scott P. Johnson
Wiktoria Jędryczka
Natalia Kartushina
Melissa Kline Struhl
Ada Koleini
Abhinav Kona
Shannon P. Kong
Jessica E. Kosie
Monika Kučerová
Katerina Cook
Jared W. Leslie
Casey Lew-Williams
Scarlet Wan Yee Li
Romi Livne
Ellen Marklund
Julien Mayor
Michal Misiak
David Moreau
Jutta L. Mueller
Amber Muhinyi
Alyssa A. Quinn
Maartje E. J. Raijmakers
Audun Rosslund
Iris-Corinna Schwarz
Jeanne L. Shinskey
Mohinish Shukla
Sylvain Sirois
Piotr Sorokowski
Basma Sowan
TIbor Tauzin
Angeline Sin Mei Tsui
Martina Turconi
Rebeca C. Urizar
Lisa Wagner
Stephanie Wermelinger
Gert Westermann
Ivonne Weyers
Luiza S.B. Yuan
Martina S. Zaharieva
Tania S. Zamuner
Barbara Zapiór
Simone Zasso
J. Grace Zhou
Melanie Soderstrom


Spin-off Projects

  • MB3-NIRS logo MB3-NIRS: Rule Learning with NIRS
  • MB3L logo MB3L: Longitudinal Follow-up
  • MB3P logo MB3P: Pupil Dilation
  • MB3T logo MB3T: Test-Retest Follow-up