Audun Rørvik Rosslund
Foto:
Nadia Frantsen
About
I am an associate professor of developmental psychology at the Department of Psychology and PI of the NTNU Early Language & Learning Group (ELLG). My research primarily focuses on language development in infants and toddlers, with a particular emphasis on the mechanisms that drive language acquisition, the role of environmental factors in shaping language development, and the design of effective tools for early language assessment.
Recently, I have focused on associations between early vocabulary and various aspects of children's home environments, such as siblings, screen time, shared book reading, pacifier use, and acoustic features of parents’ speech (infant-directed speech).
I use a range of methodological approaches in my work, including eye-tracking and pupillometry, touch-based methods, questionnaires, and acoustic analyses of parent–child interaction. I am committed to Open Science practices, and involved in the ManyBabies consortium, a global multi-lab collaboration that promotes replicability and generalisability in developmental psychology.
Publications
Registered Reports (Stage 1)
- The ManyBabies Consortium (accepted pending data collection). ManyBabies 5: A large-scale investigation of the proposed shift from familiarity preference to novelty preference in infant looking time. Nature Human Behaviour.
- Laeng, B., Mayor, J., Rosslund, A., & Kartushina, N. (accepted pending data collection). Pupillary response to a brightness illusion in infants. Collabra: Psychology.
- Serres, N., Mayor, J., Rosslund, A., & Kartushina, N., (accepted pending data collection). The role of dialect variability on mispronunciation sensitivity: An insight to infants’ early language development from a Norwegian context. Infancy.
- The ManyBabies Consortium (accepted pending data collection). ManyBabies 3: A multi-lab study of infant algebraic rule learning. Developmental Science.
- The ManyBabies Consortium (accepted pending data collection). Action anticipation based on an agent’s epistemic state in toddlers and adults. Child Development.
2025
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Rosslund, Audun.
(2025)
Learning words in context.
Nature Reviews Psychology
Academic article
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Rosslund, Audun;
Mayor, Julien;
Kartushina, Natalia.
(2025)
Norwegian parents do not modulate infant-directed speech based on their infants’ attributed word knowledge.
Developmental Psychology
Academic article
-
Rosslund, Audun;
Kartushina, Natalia;
Serres, Nora Rose;
Mayor, Julien.
(2025)
Early Vocabulary Acquisition: From Birth Order Effect to Child-to-Caregiver Ratio.
Child Development
Academic article
-
Rosslund, Audun;
Varjola, Nina;
Mayor, Julien;
Kartushina, Natalia.
(2025)
Longitudinal changes in consonant production in infant-directed speech and infants’ early speech production from 6 to 12 months.
Infant Behavior and Development
Academic article
2024
-
Rosslund, Audun;
Mayor, Julien;
Cristia, Alejandrina;
Kartushina, Natalia.
(2024)
Native and non-native vowel discrimination in 6-month-old Norwegian infants.
Infant Behavior and Development
Academic article
-
Rosslund, Audun;
Kartushina, Natalia;
Mayor, Julien.
(2024)
Associations between shared book reading, daily screen time and infants' vocabulary size.
Journal of Child Language
Academic article
-
Rosslund, Audun;
Mayor, Julien;
Mundry, Roger;
Singh, Arun Prakash;
Cristia, Alejandrina;
Kartushina, Natalia.
(2024)
A longitudinal investigation of the acoustic properties of infant-directed speech from 6 to 18 months.
Royal Society Open Science
Academic article
2023
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Rosslund, Audun;
Hagelund, Silje;
Mayor, Julien;
Kartushina, Natalia.
(2023)
Mothers' and fathers' infant-directed speech have similar acoustic properties, but these are not associated with direct or indirect measures of word comprehension in 8-month-old infants.
Journal of Child Language
Academic article
-
Rosslund, Audun.
(2023)
Stemmen din kan påvirke barnas språkutvikling.
Første steg
Professional article
2022
-
Rosslund, Audun;
Mayor, Julien;
Kartushina, Natalia.
(2022)
Barns ordforråd skjøt fart når barnehagene stengte ned under pandemien.
Første steg
Professional article
-
Rosslund, Audun;
Mayor, Julien;
Óturai, Gabriella;
Kartushina, Natalia.
(2022)
Parents’ hyper-pitch and low vowel category variability in infant-directed speech are associated with 18-month-old toddlers’ expressive vocabulary.
Language Development Research
Academic article
2021
-
Lo, Chang Huan;
Rosslund, Audun;
Chai, Jun Ho;
Mayor, Julien;
Kartushina, Natalia.
(2021)
Tablet assessment of word comprehension reveals coarse word representations in 18–20‐month‐old toddlers.
Infancy
Academic article
-
Kartushina, Natalia;
Rosslund, Audun;
Mayor, Julien.
(2021)
Toddlers raised in multi-dialectal families learn words better in accented speech than those raised in monodialectal families.
Journal of Child Language
Academic article
Journal publications
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Rosslund, Audun.
(2025)
Learning words in context.
Nature Reviews Psychology
Academic article
-
Rosslund, Audun;
Mayor, Julien;
Kartushina, Natalia.
(2025)
Norwegian parents do not modulate infant-directed speech based on their infants’ attributed word knowledge.
Developmental Psychology
Academic article
-
Rosslund, Audun;
Hagelund, Silje;
Mayor, Julien;
Kartushina, Natalia.
(2023)
Mothers' and fathers' infant-directed speech have similar acoustic properties, but these are not associated with direct or indirect measures of word comprehension in 8-month-old infants.
Journal of Child Language
Academic article
-
Rosslund, Audun;
Kartushina, Natalia;
Serres, Nora Rose;
Mayor, Julien.
(2025)
Early Vocabulary Acquisition: From Birth Order Effect to Child-to-Caregiver Ratio.
Child Development
Academic article
-
Rosslund, Audun.
(2023)
Stemmen din kan påvirke barnas språkutvikling.
Første steg
Professional article
-
Rosslund, Audun;
Mayor, Julien;
Kartushina, Natalia.
(2022)
Barns ordforråd skjøt fart når barnehagene stengte ned under pandemien.
Første steg
Professional article
-
Lo, Chang Huan;
Rosslund, Audun;
Chai, Jun Ho;
Mayor, Julien;
Kartushina, Natalia.
(2021)
Tablet assessment of word comprehension reveals coarse word representations in 18–20‐month‐old toddlers.
Infancy
Academic article
-
Rosslund, Audun;
Mayor, Julien;
Cristia, Alejandrina;
Kartushina, Natalia.
(2024)
Native and non-native vowel discrimination in 6-month-old Norwegian infants.
Infant Behavior and Development
Academic article
-
Rosslund, Audun;
Kartushina, Natalia;
Mayor, Julien.
(2024)
Associations between shared book reading, daily screen time and infants' vocabulary size.
Journal of Child Language
Academic article
-
Rosslund, Audun;
Varjola, Nina;
Mayor, Julien;
Kartushina, Natalia.
(2025)
Longitudinal changes in consonant production in infant-directed speech and infants’ early speech production from 6 to 12 months.
Infant Behavior and Development
Academic article
-
Kartushina, Natalia;
Rosslund, Audun;
Mayor, Julien.
(2021)
Toddlers raised in multi-dialectal families learn words better in accented speech than those raised in monodialectal families.
Journal of Child Language
Academic article
-
Rosslund, Audun;
Mayor, Julien;
Óturai, Gabriella;
Kartushina, Natalia.
(2022)
Parents’ hyper-pitch and low vowel category variability in infant-directed speech are associated with 18-month-old toddlers’ expressive vocabulary.
Language Development Research
Academic article
-
Rosslund, Audun;
Mayor, Julien;
Mundry, Roger;
Singh, Arun Prakash;
Cristia, Alejandrina;
Kartushina, Natalia.
(2024)
A longitudinal investigation of the acoustic properties of infant-directed speech from 6 to 18 months.
Royal Society Open Science
Academic article
Teaching
Courses
Outreach
2025
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Conference posterRosslund, Audun Rørvik; Serres, Nora Rose; Kartushina, Natalia; Mayor, Julien. (2025) Early language acquisition: From birth order effect to child-to-caregiver ratio. 9th Lancaster International Conference on Infant and Child Development
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Conference posterOtto, Sofie; Kartushina, Natalia; Rosslund, Audun Rørvik; Mayor, Julien. (2025) Parents’ attitudes and early parent-child interactions: Insights from a language-generic intervention on multilingual families. 9th Lancaster International Conference on Infant and Child Development
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Conference posterBoskovic, Ana; Kartushina, Natalia; Mayor, Julien; Rosslund, Audun Rørvik. (2025) The impact of dialectal variability on word segmentation in infancy: Insights from Norway. 9th Lancaster International Conference on Infant and Child Development
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Conference posterSerres, Nora Rose; Mayor, Julien; Kartushina, Natalia; Rosslund, Audun Rørvik. (2025) Dialectal variability shapes early language development: Evidence from mispronunciation sensitivity in 13-month-old infants. 15th International Symposium on Bilingualism
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Conference posterRosslund, Audun Rørvik; Kartushina, Natalia; Serres, Nora Rose; Mayor, Julien. (2025) Negative sibling effects revised: When a sibling becomes a caregiver. 7th Workshop on Infant Language Development
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Conference posterRosslund, Audun Rørvik; Mayor, Julien; Kartushina, Natalia. (2025) No evidence that Norwegian parents tailor infant-directed speech based on attributed word knowledge. 7th Workshop on Infant Language Development
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Conference lectureKartushina, Natalia; Mayor, Julien; White, Michelle Jennifer; Myrtveit Gundersen, Anni Sofie; Onnis, Luca; Hagelund, Silje; Singh, Arun Prakash; Muñoz, Luis Eduardo; Rosslund, Audun Rørvik. (2025) Reliability of acoustic measures of infant-directed speech between lab and home environments and play and reading contexts. 7th Workshop on Infant Language Development
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Interview
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Interview
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Interview
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InterviewRosslund, Audun Rørvik. (2025) Storesøsken påvirker minstemanns språkutvikling, men kanskje ikke som du tror.
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InterviewRosslund, Audun Rørvik. (2025) Barns språkutvikling: – Dynamikken i hjemmet er avgjørende, ikke fødselsrekkefølgen.
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Interview
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Interview
2024
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InterviewRosslund, Audun Rørvik. (2024) Reading to your 1- and 2-year old boosts their vocabulary, study finds.
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Interview
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Interview
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Conference posterRosslund, Audun; Mayor, Julien; Mundry, Roger; Singh, Arun Prakash; Cristia, Alejandrina; Kartushina, Natalia. (2024) A longitudinal investigation of the acoustic properties of infant-directed speech from 6 to 18 months. 6th Workshop on Infant Language Development
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Conference posterMunoz, Luis Eduardo; Rosslund, Audun; Kartushina, Natalia; Mayor, Julien. (2024) Pacifier use is associated with reduced word comprehension in early childhood. 6th Workshop on Infant Language Development
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Conference lectureRosslund, Audun; Mayor, Julien; Mundry, Roger; Singh, Arun Prakash; Cristia, Alejandrina; Kartushina, Natalia. (2024) A longitudinal investigation of the acoustic properties of infant-directed speech from 6 to 18 months. XXIV International Congress on Infant Studies
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Conference posterRosslund, Audun; Hatlevoll, Nina Emilie Varjola; Mayor, Julien; Kartushina, Natalia. (2024) Longitudinal changes in consonant production in infant-directed speech and infants’ early speech production from 6 to 12 months. 6th Workshop on Infant Language Development
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Conference posterRosslund, Audun; Mayor, Julien; Cristia, Alejandrina; Kartushina, Natalia. (2024) Native and non-native vowel discrimination in 6-month-old Norwegian infants. 6th Workshop on Infant Language Development
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Conference posterMunoz, Luis Eduardo; Rosslund, Audun; Kartushina, Natalia; Mayor, Julien. (2024) No evidence of native sound discrimination in Norwegian 9-month-old infants using an eye-tracking habituation paradigm. 6th Workshop on Infant Language Development
2023
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Interview
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Conference lectureHatlevoll, Nina Emilie Varjola; Rosslund, Audun; Mayor, Julien; Kartushina, Natalia. (2023) Voice onset time in Norwegian infant directed speech: A longitudinal study on the relationship between consonant production in parents’ IDS and infants’ babbling. 8th Lancaster Conference on Infant and Child Development
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Conference posterRosslund, Audun; Hagelund, Silje; Mayor, Julien; Kartushina, Natalia. (2023) Mothers’ and fathers’ infant- directed speech have similar acoustic properties, but these are not associated with direct or indirect measures of word comprehension in 8-month-old infants. 8th Lancaster Conference on Infant and Child Development
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Conference posterRosslund, Audun; Kartushina, Natalia; Mayor, Julien. (2023) Associations between shared book reading and vocabulary size are stronger among lower-SES infants. 8th Lancaster Conference on Infant and Child Development
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Conference posterMunoz, Luis Eduardo; Rosslund, Audun; Mayor, Julien; Kartushina, Natalia. (2023) No evidence of native sound discrimination in Norwegian 9-month-old infants using an eye-tracking habituation paradigm. 8th Lancaster Conference on Infant and Child Development
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Conference lectureKartushina, Natalia; Onnis, Luca; Rosslund, Audun; Singh, Arun Prakash; White, Michelle Jennifer; Theimann, Ane; Hansen, Pernille; González, Elisabet García; Liu, Liquan; Falkum, Ingrid Lossius. (2023) Babies and kids - how do they acquire and learn multiple lects?. MultiLing Closing Conference
2022
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Conference lectureRosslund, Audun; Gonzalez, Elisabet Garcia; Olstad, Anne Marte Haug; White, Michelle Jennifer. (2022) Pitfalls in experimental designs: Assumptions and misconceptions. INTPART closing conference
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Conference lectureRosslund, Audun; Mayor, Julien; Óturai, Gabriella; Kartushina, Natalia. (2022) Parents’ hyper pitch and vowel category compactness in infant-directed speech are associated with 18-month-old toddlers’ expressive vocabulary. XXIII International Congress on Infant Studies
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Conference posterRosslund, Audun; Mayor, Julien; Óturai, Gabriella; Kartushina, Natalia. (2022) Parents’ hyper pitch and vowel category compactness in infant-directed speech are associated with 18-month-old toddlers’ expressive vocabulary. 7th Lancaster Conference on Infant and Child Development
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Conference posterRosslund, Audun; Mayor, Julien; Óturai, Gabriella; Kartushina, Natalia. (2022) Parents’ hyper pitch and vowel category compactness in infant-directed speech are associated with 18-month-old toddlers’ expressive vocabulary. CLASTA Conference
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Conference lectureRosslund, Audun; Mayor, Julien; Óturai, Gabriella; Kartushina, Natalia. (2022) Parents’ hyper pitch and vowel category compactness in infant-directed speech are associated with 18-month-old toddlers’ expressive vocabulary. 5th Workshop on Infant Language Development
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Conference posterRosslund, Audun; Roepstorff, Ida; Lo, Chang Huan; Chai, Jun Ho; Mayor, Julien; Kartushina, Natalia. (2022) Alignments between direct tablet-based assessment of word comprehension and parent reports depend on child’s age and word properties. 5th Workshop on Infant Language Development
2021
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Conference lectureRosslund, Audun; Kartushina, Natalia; Mayor, Julien; Chai, Jun Ho; Lo, Chang Huan. (2021) Tablet assessment of word comprehension reveals coarse word representations in 18-20-month-old toddlers. 6th Lancaster Conference on Infant and Child Development
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LectureRosslund, Audun; Mayor, Julien; Óturai, Gabriella; Kartushina, Natalia. (2021) Babytalk in Tromsø. Forum for Clinical Linguistics and Language Acquisition
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Interview
2020
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Conference posterKartushina, Natalia; Rosslund, Audun Rørvik; Mayor, Julien. (2020) Toddlers raised in multi- dialectal families learn words better in accented speech than those raised in monodialectal families. Many Paths to Language
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Conference lectureKartushina, Natalia; Rosslund, Audun Rørvik; Mayor, Julien. (2020) Toddlers raised in multi- dialectal families learn words better in accented speech than those raised in monodialectal families. 5th Lancaster International Conference on Infant and Child Development
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Conference posterKartushina, Natalia; Rosslund, Audun Rørvik; Mayor, Julien. (2020) Toddlers raised in multi- dialectal families learn words better in accented speech than those raised in monodialectal families. XXII International Congress of Infant Studies