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Luis Eduardo Munoz

Specialist Consultant - Bilagslønnede

Email l.e.munoz@psykologi.uio.no

Available hours By agreement

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Visiting address Forskningsveien 3A Harald Schjelderups hus 0373 Oslo

Postal address Postboks 1094 Blindern 0317 Oslo

Other affiliations Faculty of Social Sciences (Student) Health-, Developmental- and Personality psychology

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Academic interests

Early Language development
Link between perception and production of language
Open Science
Bilingualism
Eye-tracking
EEG
Epistemology

Teaching Interests

I am passionate about teaching statistically methods and R programming. Particularly as they relate to disseminating open science practices and furthering my own understanding of unique methods.

I have taught seminars for Developmental psychology, Cognitive Psychology, Personality Psychology, Social Psychology, Introduction to Methods; Cognition, Emotions, and Language; and Health Psychology.

I have given lectures in Cognitive Psychology; Developmental Psychology; and Cognition, Emotions, and Language

Media Outreach

Video interview Newseria

Psypost interview

The Informed SLP interview

Previous Workshops

Lost in the Code? (March 2023)

Lost in the Code? Demystifying R Programming. (January 2023)

Background

2022 → PhD in Psychology, University of Oslo, Norway
2019 – 2021 MPhil in Psychology, University of Oslo, Norway
2015 – 2018 HBSc Specialist in Psychology, University of Toronto, Canada

Tags: language, Development, perceptions, Open Science, Eyetracking, EEG

Muñoz, Luis Eduardo; Kartushina, Natalia & Mayor, Julien (2024). Sustained pacifier use is associated with smaller vocabulary sizes at 1 and 2 years of age: A cross-sectional study. Developmental Science. ISSN 1363-755X. doi: 10.1111/desc.13477. Full text in Research Archive Show summary
Pacifier use during childhood has been hypothesized to interfere with language processing, but, to date, there is limited evidence revealing detrimental effects of prolonged pacifier use on infant vocabulary learning. In the present study, parents of 12- and 24-month-old infants were recruited in Oslo (Norway). The sample included 1187 monolingual full-term born (without visual, auditory, or cognitive impairments) infants: 452 (230 girls; 222 boys) 12-month-olds and 735 (345 girls; 390 boys) 24-month-olds. Parents filled out an online Norwegian Communicative Development Inventory (CDI), which assesses the vocabulary in comprehension and production for 12-month-old infants and in production only for 24-month-old infants. CDI scores were transformed into age- and sex-adjusted percentiles using Norwegian norms. Additionally, parents retrospectively reported their child's daytime pacifier use, in hours, at 2-month intervals, from birth to the assessment date. Maternal education was used to control, in the analyses, for the socio-economic status. We found that greater pacifier use in an infant's lifespan was associated with lower vocabulary size. Pacifier use later in life was more negatively associated with vocabulary size than precocious use, and increased the odds of being a low language scorer. In sum, our study moves beyond the findings of momentary effects of experimentally induced “impairment” in articulators’ movement on speech perception and suggests that, from 12 months of age, constraints on the infant's speech articulators (pacifier use) may be negatively associated with word comprehension and production.
Ye, Qun; Fidalgo, Celia; Byrne, Patrick; Munoz, Luis Eduardo; Cant, Jonathan S. & Lee, Andy C.H. (2024). Using imagination and the contents of memory to create new scene and object representations: A functional MRI study. Neuropsychologia. ISSN 0028-3932. doi: 10.1016/j.neuropsychologia.2024.109000. Full text in Research Archive
Soderstrom, Melanie; Rocha-Hidalgo, Joscelin; Munoz, Luis Eduardo; Bochynska, Agata; Werker, Janet F. & Skarabela, Barbora [Show all 42 contributors for this article] (2024). Testing the relationship between preferences for infant-directed speech and vocabulary development: A multi-lab study. Journal of Child Language. ISSN 0305-0009. doi: 10.1017/S0305000924000254. Full text in Research Archive Show summary
From early on, infants show a preference for infant-directed speech (IDS) over adult-directed speech (ADS), and exposure to IDS has been correlated with language outcome measures such as vocabulary. The present multi-laboratory study explores this issue by investigating whether there is a link between early preference for IDS and later vocabulary size. Infants’ preference for IDS was tested as part of the ManyBabies 1 project, and follow-up CDI data were collected from a subsample of this dataset at 18 and 24 months. A total of 341 (18 months) and 327 (24 months) infants were tested across 21 laboratories. In neither preregistered analyses with North American and UK English, nor exploratory analyses with a larger sample did we find evidence for a relation between IDS preference and later vocabulary. We discuss implications of this finding in light of recent work suggesting that IDS preference measured in the laboratory has low test-retest reliability.
Kartushina, Natalia; Mani, Nivedita; Aslı, Aktan-Erciyes; Alaslani, Khadeejah; Aldrich, Naomi J. & Almohammadi, Alaa [Show all 52 contributors for this article] (2022). COVID-19 first lockdown as a window into language acquisition: associations between caregiver-child activities and vocabulary gains. Language Development Research. 2, p. 1–36. doi: 10.34842/abym-xv34. Full text in Research Archive Show summary
The COVID-19 pandemic, and the resulting closure of daycare centers worldwide, led to unprecedented changes in children’s learning environments. This period of increased time at home with caregivers, with limited access to external sources (e.g., daycares) provides a unique opportunity to examine the associations between the caregiver-child activities and children’s language development. The vocabularies of 1742 children aged8-36 months across 13 countries and 12 languages were evaluated at the beginning and end of the first lockdown period in their respective countries(from March to September 2020). Children who had less passive screen exposure and whose caregivers read more to them showed larger gains in vocabulary development during lockdown, after controlling for SES and other caregiver-child activities. Children also gained more words than expected (based on normative data) during lockdown; either caregivers were more aware of their child’s development or vocabulary development benefited from intense caregiver-child interaction during lockdown.

View all works in NVA

Kartushina, Natalia; Mayor, Julien; White, Michelle Jennifer; Gundersen, Anni Sofie Myrtveit; Onnis, Luca & Hagelund, Silje [Show all 9 contributors for this article] (2025). Reliability of acoustic measures of infant-directed speech between lab and home environments and play and reading contexts. Full text in Research Archive
Munoz, Luis Eduardo; Rosslund, Audun; Kartushina, Natalia & Mayor, Julien (2024). Pacifier use is associated with reduced word comprehension in early childhood. Full text in Research Archive
Munoz, 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. Full text in Research Archive
Munoz, 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. Full text in Research Archive
Munoz, Luis Eduardo; Kartushina, Natalia; Martin, Clara & Baart, Martijn (2022). Investigating the impact of production training of non-native speech sounds on perception performance using the MMN. Full text in Research Archive
Muñoz, Luis Eduardo; Kartushina, Natalia & Mayor, Julien (2022). Sustained Pacifier Use is Associated with Smaller Vocabulary sizes at 1 and 2 Years of Age. Full text in Research Archive
Munoz, Luis Eduardo; Kartushina, Natalia & Mayor, Julien (2022). Season-of-Birth Effects on Infant Vocabulary Size. Full text in Research Archive
Munoz, Luis Eduardo; Kartushina, Natalia & Mayor, Julien (2022). Season-of-birth effects on infant vocabulary size. Full text in Research Archive
Munoz, Luis Eduardo; Kartushina, Natalia & Mayor, Julien (2022). Sustained Pacifier Use is Associated with Smaller Vocabulary Sizes at 1 and 2 Years of Age. Full text in Research Archive
Kartushina, Natalia; Robberstad, Silje; Munoz, Luis Eduardo & Mayor, Julien (2021). Acoustic properties of Norwegian infant-directed speech and their role in language development of 8-9-month-old infants. Full text in Research Archive