Publications

The Alignment between Language Properties and Computational Algorithms ... 

Chai, J., & Ko, E.-S. (2026). 

Journal of Child Language. 

Developmental Shift in Multimodal Cue Usage in Early Mother-Child Conversational Initiation

Chai, J., Zapior, B., & Ko, E. (2026).
Infancy, 31(3), e70096. 

Cross-domain evaluation and fine-tuned adaptation of iCatcher+ for Korean infant gaze data 

Madhavan, R., Lee, J., Lee, D., Jung, J.-H., & Ko, E.-S. (2026).  I Infant Behavior and Development, 83, 102198 

Korean Parents’ Knowledge of Early Cognitive and Language Development: ... 

Seo, J., Jeong, J., & Ko, E.-S. (2026). Communication Sciences & Disorders. 

Developmental Modulation of Phonological Structure in Korean Child-Directed Speech 

Kim, J., & Ko, E.-S. (2026).  
Developmental Modulation of Phonological Structure in Korean Child-Directed Speech.

Language, 51(1), 81–112.

What 5000 babies can tell us about developing minds and how to study them

McMillan et al. (2026) .
Communications Psychology, 4, Article number: 92 (2026) 

Infant-Directed Speech

Eon-Suk Ko (2026).  
Open Encyclopedia of Cognitive Science,
MIT Press. (Book Chapter)

Spanish Allomorph Selection by Heritage Speakers in the United States

Joo Kyeong Kim (2026).
Center for Cross Culture Studies, 77, 27–54.

Assessing Spanish Oral Performance Using Linguistic Complexity Measures

Joo Kyeong Kim (2026). 

Asociacion Coreana De Hispanistas, 118, 33–60.

Input Properties Shape Word Segmentation Performance Across ...

Chai, J., & Ko, E.-S. (2025). I Infancy, 30(5), e70046.

The impact of word-touch synchrony on early language development  ...

Jung, J., & Ko, E.-S. (2025). 

Journal of Speech, Language, and Hearing Research.

Lookee: Gaze tracking-based infant vocabulary comprehension ...

Kim, M., Shim, M., Chae, J., Ko, E.-S., & Lee, Y. (2025).
Proceedings of the ACM CHI Conference on Human Factors in Computing Systems (Article 647, 15 pages).

The dynamics of initiation in caregiver-child conversational interactions

Chai, J. H., Jung, J., & Ko, E.-S. (2025).
Journal of Child Language, 52(4), 839–860.

Validation of an Open Source, Remote Web-based Eye-tracking Method (WebGazer) for Research in Early Childhood

Steffan, A., Zimmer, L., ... Ko, E., ... Schuwerk, T. (2024).
Infancy, 29(1), 31–55.

Ko, E.-S. & Jun, J. (2024).
Journal of Child Language, 51(2), 288–313.

Testing the relationship between preferences for infant-directed speech and vocabulary ...

Soderstrom, M., ... Ko, E., ... (2024).
Journal of Child Language.

Korean infants' perceptual responses to Korean and Western music based on musical experience

Ko, E.-S., & McDonald, M. (2023).

Developmental Science, 26(5), e13378.

Mothers’ use of touch across infants’ development and its implications for word learning

Ko, E.-S., Abu-Zhaya, R., Kim, E., Kim, T., On, K., Kim, H., Zhang, B., & Seidl, A. (2023).
Infancy, 28(3), 597–618.

Captivate! Contextual Language Guidance for Parent-Child Interaction

Kwon, T., Jeong, M., Ko, E.-S., Lee, Y. (2022).
CHI Conference on Human Factors in Computing Systems. [🏆Best Paper Honorable Mention Award] 

Evaluating the LENA® system for Korean

McDonald, M., Kwon, T., Kim, H., Lee, Y. & Ko, E.-S. (2021).
Journal of Speech, Language, and Hearing Research, 64(3), 792–808.

Introducing the Ko Corpus of Korean mother-child interaction

Ko, E.-S., Jo, J., On, K.-W. & Zhang, B.-T. (2020). Frontiers in Psychology.

Quantifying Sources of Variability in Infancy Research Using the Infant-Directed-Speech Preference

The ManyBabies Consortium (2020).
Advances in Methods and Practices in Psychological Science, Vol 3, Issue 1 

Korean mothers attune the frequency and acoustic saliency of sound symbolic words to the linguistic maturity of their children

Jo, J. & Ko, E.-S. (2018).
Frontiers in Psychology 9:2225, doi: 10.3389/fpsyg.2018.02225
[🏆Excellence of Research Award, National Research Foundation of Korea;
Research Video Summary Video Abstract]

Infant–Mother Acoustic–Prosodic Alignment and Developmental Risk

Seidl, A., Cristia, A., Soderstrom, M., Ko, E.-S., Abel, E. A., Kellerman, A. & Schwichtenberg, A. J. (2018). Journal of Speech Language and Hearing Research.

Entrainment of prosody in the interaction of mothers with their young children

Ko, E.-S., Seidl, M., Cristia, A., Reimchen, M. & Soderstrom, M. (2016).
Journal of Child Language, 43(2), 284–309.

Additive effects of lengthening on the utterance-final word in child-directed speech 

Ko, E.-S. & Soderstrom, M. (2013).
Journal of Speech, Language, and Hearing Research, 56(1), 364–371.

Nonlinear development of speaking rate in child-directed speech

Ko, E.-S. (2012).
Lingua, 122, 841–857.

It's a question? Infants attend differently to yes/no questions and declaratives

Soderstrom, M., Ko, E.-S. & Nevzorova, U. (2011). Infant Behavior and Development, 34(1), 107–110.

Development of perceptual sensitivity to extrinsic vowel duration in infants ...

Ko, E.-S., Soderstrom, M. & Morgan, J. (2009).
Journal of the Acoustical Society of America, 126(5), EL134–EL139.

A metrical theory of Korean word prosody

Ko, Eon-Suk (2013).
The Linguistic Review, 30(1), 79–115.