ARTICLES
Research in child language and cognition
Papers in archive/under review
Chai, J., Mun, S., & Ko, E. (2024, August 5). The Alignment Between Language Properties and Computational Algorithms Enhances Statistical Word Segmentation: Evidence from Korean Child-Directed Speech. Retrieved from https://osf.io/preprints/psyarxiv/ujckb
Jung, J., Chai, J., & Ko, E. (2023, December 8). The Interplay of Family Socioeconomic Status, Parental Engagement, and Maternal Employment on Vocabulary Development in Korean Children. Retrieved from osf.io/preprints/psyarxiv/depvx
Chai, J., McDonald, M., & Ko, E. (2023, February 4). Investigating the Convergent Validity of Child Language Assessment Measures: A Korean Study. https://doi.org/10.31234/osf.io/5q24v
Ko, E.-S., Jo, J. & Chai, J. H. (2022) Word-order adaptation and lexical repetition in Korean child-directed speech: Implications for infants’ learning nouns in a verb-dominant language
Peer-reviewed published articles (* indicates corresponding author)
Kosie, J. E., Zettersten, M., Abu-Zhaya, R., Amso, D., Babineau, M., Baumgartner, H. A., … , Ko, E., ... Lew-Williams, C. (in-principle-acceptance). ManyBabies 5: A large-scale investigation of the proposed shift from familiarity preference to novelty preference in infant looking time. Nature Human Behavioiur. [PsyArxiv https://doi.org/10.31234/osf.io/ck3vd]
Chai, J., & Ko, E.-S.* (to appear). Input properties shape word segmentation performance across child development: A computational modeling study, Infancy.
Jung, J. & Ko, E.-S.* (2025) The impact of word-touch synchrony on early language development: Preliminary findings from Korean mother-child interactions, Journal of Speech, Language, and Hearing Research. https://doi.org/10.1044/2025_JSLHR-24-00266
Kim, M., Shim, M., Chae, J., Ko, E.-S.*, & Lee, Y.* (2025). Lookee: Gaze tracking-based infant vocabulary comprehension assessment and analysis. In Proceedings of the ACM CHI Conference on Human Factors in Computing Systems. (Article 647, 15 pages). Association for Computing Machinery. https://doi.org/10.1145/3706598.3713386
Chai, J. H., Jung, J., & Ko, E.* (2025). The dynamics of initiation in caregiver-child conversational interactions. Journal of Child Language. 2025;52(4):839-860. doi:10.1017/S030500092400062X
Ko, E.-S.* & Jun, J. (2024). Phonological Variation in Child-Directed Speech is Modulated by Lexical Frequency, Journal of Child Language, 2024;51(2):288-313. doi:10.1017/S0305000923000466 [pdf]
Soderstrom, M., ... Ko, E., ... (2024) Testing the relationship between preferences for infant-directed speech and vocabulary development: A multi-lab study. Journal of Child Language. Published online 2024:1-26. doi:10.1017/S0305000924000254
고언숙 , 김수한 and 정종민 (2024). 언어 사용에서 다중감각 신호의 역할 탐구: ELAN 을 활 용한 비디오 자료 분석의 예 [Investigating the role of multimodal cues in language use: A tutorial on video data analysis using ELAN]. 음성음운형태론연구, 30(1), 3 - 29.
Steffan, A., Zimmer, L., ... , Ko, E., ..., Schuwerk, T. (2024). Validation of an Open Source, Remote Web-based Eye-tracking Method (WebGazer) for Research in Early Childhood, Infancy, 29.1, 31-55.
Ko, E.-S. & Jung, J. (2023). Exploring the Tactile Input in Korean Mother-Child Interactions: Duration, Location and Types Across Development. Korean Journal of Linguistics (언어), 48(4), 759-783.
Kim, S. & Ko, E.-S.* (2023). High Vowel Devoicing in Korean Child-Directed Speech as Mediated by Vowel Duration [한국어 아동지향어에서의 고모음 무성음화: 음장의 매개효과]. Korean Journal of Linguistics (언어), 48(4), 949-969. [in Korean]
Ko, E.-S.*, & McDonald, M. (2023). Korean infants' perceptual responses to Korean and Western music based on musical experience, Developmental Science, 26.5, e13378. https://doi.org/10.1111/desc.13378. [video abstract] [pdf]
Ko, E.-S.*, Abu-Zhaya, R., Kim, E., Kim, T., On, K., Kim, H., Zhang, B. & Seidl, A. (2023). Mothers’ use of touch across infants’ development and its implications for word learning: Evidence from Korean dyadic interactions, Infancy 28.3, 597-618. https://doi.org/10.1111/infa.12532. [pdf]
Kwon, T., Jeong, M., Ko, E.-S., Lee, Y. (2022) Captivate! Contextual Language Guidance for Parent-Child Interaction, CHI '22: Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems, https://doi.org/10.1145/3491102.3501865 [Best Paper Honorable Mention Award] [presentation video]
McDonald, M., Kwon, T., Kim, H., Lee, Y. & Ko, E.-S.* (2021) Evaluating the LENA ® system for Korean, Journal of Speech, Language, and Hearing Research, 64.3, 792-808. https://doi.org/10.1044/2020_JSLHR-20-00489 [pdf]
Ko, E.-S. (2021) TalkBank의 음성 말뭉치를 활용한 대화 참여자의 상호작용 연구 [Investigating speaker dynamics in conversational interactions based on corpora in TalkBank], 언어와 정보 25.2. [pdf]
Ko, E.-S., Jo, J., On, K.-W. & Zhang, B.-T. (2020) Introducing the Ko Corpus of Korean mother-child interaction, Frontiers in Psychology. doi: 10.3389/fpsyg.2020.602623
Ko, E.-S. & McDonald, M. (2020) Not all input is equal: the efficacy of book reading in infants’ word learning is mediated by child-directed speech. NeurIPS 2020, BabyMind workshop. [presentation video]
The ManyBabies Consortium. (2020). Quantifying sources of variability in infancy research using the infant-directed speech preference. Advances in Methods and Practices in Psychological Science, Vol 3, Issue 1. https://doi.org/10.1177/2515245919900809
J. Jo & Ko, E.-S.* (2018) Korean mothers attune the frequency and acoustic saliency of sound symbolic words to the linguistic maturity of their children, Frontiers in Psychology 9:2225, doi: 10.3389/fpsyg.2018.02225 [Excellence of Research Award, National Research Foundation of Korea; 한국연구재단 학술연구 우수성과 수상작, 비디오 요약]
Seidl, A., Cristia, A., Soderstrom, M., Ko, E.-S., Abel, E. A., Kellerman, A. & Schwichtenberg, A. J. (2018) Infant–Mother Acoustic–Prosodic Alignment and Developmental Risk, Journal of Speech Language and Hearing Research, ASHA.
Ko, E.-S., Seidl, M., Cristia, A., Reimchen, M. & Soderstrom, M. (2016) Entrainment of prosody in the interaction of mothers with their young children, Journal of Child Language 43.2, 284-309. DOI: 10.1017/S0305000915000203
Ko, E.-S.* & Soderstrom, M. (2013) Additive effects of lengthening on the utterance-final word in child-directed speech, Journal of Speech, Language, and Hearing Research, 56.1., 364-371.
Ko, E.-S. (2012) Nonlinear development of speaking rate in child-directed speech, Lingua 122, 841-857.
Soderstrom, M., Ko, E.-S. & Nevzorova, U. (2011) It's a question? Infants attend differently to yes/no questions and declaratives , Infant Behavior and Development, 34.1, 107-110.
Ko, E.-S.*, Soderstrom, M. & Morgan, J. (2009) Development of perceptual sensitivity to extrinsic vowel duration in infants learning American English, Journal of the Acoustical Society of America, 126.5, pp. EL134-EL139.
Ko, E.-S. (2007) Acquisition of vowel duration in children speaking American English, Proceedings of Interspeech 2007, Antwerp, pp. 1881-1884.
Research in linguistics
Ko, E.-S. (2024). Edge-Prominence in Text-Setting: A Preliminary Study of Korean Children's Songs. Korean Journal of Linguistics (언어), 49(2), 207-229.
고언숙 (2023), Morphologically governed accent in Standard Korean. 언어과학연구, 107, 83 - 107.
문성민, 김수한 and 고언숙.* (2022). 한국어 발음 변환기(G2P)의 현황과 성능 향상에 대한 언어학적 제안 [A proposal to improve on existing Grapheme-to-Phoneme conversion models informed by linguistics]. Language and Information [언어와 정보], 26(2), 27-46.
Kim, Su-Han*, Seongmin Mun and Eon-Suk Ko (2022) Sound symbolism in the gender of personal names: With focus on the game characters in Animal Crossing.[이름의 성별에 따라 나타나는 음성상징성: 동물의 숲 주민 캐릭터 이름을 중심으로]. 음성음운형태론연구, 28( 1), 33- 55.
Ko, Eon-Suk (2021). Deriving the metrical head in Standard Korean. 언어과학연구, 97, 249-272.
Ko, E.-S. (2021) Effects of vowel duration on the perceived naturalness of English monosyllabic words ending in a stop: Some preliminary findings, Phonetics and Speech Sciences, 13.2, 37-44. Korean Society of Speech Sciences. DOI: https://doi.org/10.13064/KSSS.2021.13.2.037
J. Kim* & Ko, E.-S.* (2018) 토픽 모델링을 이용한 범죄 관련 소설과 범죄 실화의 비교 분석 (A comparative analysis of crime fiction and crime nonfiction using topic modeling), 언어와 정보 (Language and Information), 22.3, 109-134.
Ko, E.-S. (2018) Asymmetric effects of speaking rate on the vowel/consonant ratio conditioned by coda voicing in English, Phonetics and Speech Sciences, 10.2, 45-50. Korean Society of Speech Sciences. DOI: https://doi.org/10.13064/KSSS.2018.10.2.45
Ko, Eon-Suk (2017) The phonology and semantics of expressive lengthening in Korean, Studies in Phonetics, Phonology, and Morphology, 325-347. DOI : http://doi.org/10.17959/sppm.2017.23.3.325
Ko, Eon-Suk (2015) 정도부사 ‘너무’의 의미와 의미운율: 음성 말뭉치 분석을 바탕으로 (Semantic prosody of the degree adverb nemu: An analysis based on a speech corpus), Studies in Phonetics, Phonology, and Morphology, 21(2), 223-243. The Phonology Circle of Korea.
Ko, Eon-Suk (2013) A metrical theory of Korean word prosody, The Linguistic Review, 30.1., 79-115.
Ko, Eon-Suk (2003) The laryngeal effect in Korean: Phonetics or phonology?, In The Phonological Spectrum, Jeroen van de Weijer, V. J. van Heuven and H. van der Hulst (eds), volume 1, Current Issues in Linguistic Theory series no. 233, John Benjamins, Amsterdam and Philadelphia, pp. 171-191.
Ko, Eon-Suk (2001) An information-status theory of case and NP deletion in Korean, Language Research 36.1, pp. 43-62.
Han, Chung-hye, Na-Rae Han, Eon-Suk Ko, and Martha Palmer (2002) Development and evaluation of a Korean Treebank and its application to NLP, Language and Information, 6.1, pp 123-138.
PUBLISHED ABSTRACTS
Ko, E.-S. & Soderstrom, M. (2011) Patterns of temporal modifications in child-directed speech, Journal of the Acoustical Society of America, 130, No. 4, Pt 2, Oct 2011:25
Ko, E.-S. (2011) Nonlinear development of child-directed speech, LSA Annual Meeting Extended Abstracts
Evanini, K. & Ko, E.-S. (2011) Effects of speaking rate, sentential position, and coda voicing on formant frequency, Journal of the Acoustical Society of America, 130, No. 4, Pt. 2, Oct 2011:2512
BOOK CHAPTERS AND CONFERENCE PROCEEDINGS
Ko, Eon-Suk (2010) Stress and long vowels in Korean: Chicken or egg, first?, Japanese Korean Linguistics 17, CSLI, pp. 377-390.
Ko, Eon-Suk (2008) A minimalist approach to Korean prosodic phonology, Harvard Studies in Korean Linguistics XII, 210-223. Seoul: Hanshin Publishing Company.
Ko, Eon-Suk (2005) 강세와 음률 (Accent and prosody, in Korean). In Current Issues in English Linguistics Volume I: Phonology, D. Lee and B. Lee (eds), Seoul: Hanshin, pp. 49-104.
Han, Chung-hye, Na-Rae Han, Eon-Suk Ko, Heejong Yi and Martha Palmer (2002) Penn Korean Treebank: Development and evaluation, Proceedings of the 16th Pacific Asia Conference on Language, Information and Computation, Ik-Hwan Lee, Yong-Beom Kim, Key-Seun Choi and Minhaeng Lee (eds.), The Korean Society for Language and Information, pp.69-78.
Ko, Eon-Suk (2001) Acoustic effects of stress in Korean: with a focus on the status of vowel length, Proceedings of the 31st North East Linguistic Society, GSLA (ed), University of Massachusetts, Amherst., pp. 285-299.
Ko, Eon-Suk (2001) A discourse analysis of the realization of objects in Korean, Mineharu Nakayama and Charles Quinn (Eds), Japanese Korean Linguistics IX, CSLI, Stanford University, pp. 195-208.
Ko, Eon-Suk (1999) Interaction of tone and stress in Chonnam and Seoul Korean, Proceedings of the 18th West Coast Conference on Formal Linguistics, Cascadilla Press, pp. 246-259.
Ko, Eon-Suk (1998) A two-root theory of Korean geminate consonants, Proceedings of the 27th Western Conference on Linguistics, Department of Linguistics, California State University at Fresno, pp. 243-57.
Ko, Eon-Suk (1996) Korean tense consonants and post obstruent tensification: A cognitive approach, Proceedings of the 1st Seoul International Conference on Phonetic Science, Seoul: Hanshin., pp. 482-287.
CORPORA AND TECHNICAL REPORTS
Ko, Eon-Suk, Na-Rae Han, Stephanie Strassel, and Nii Martey (2003) Korean Telephone Conversations Transcripts, Linguistic Data Consortium (LDC) catalog number LDC2003T08 and ISBN 1-58563-264-3.
Ko, Eon-Suk, Na-Rae Han, Alexandra Caravan, and George Zipperlen (2003) Korean Telephone Conversations Speech, Linguistic Data Consortium (LDC) catalog number LDC2003S03 and ISBN 1-58563-263-5.
Palmer, Martha, Chung-Hye Han, Na-Rae Han, Eon-Suk Ko, Hee-Jong Yi, Alan Lee, Chris Walker, John Duda, Nianwen Xue (2002) Korean English Treebank Annotations, , Linguistic Data Consortium (LDC) catalog number LDC2002T26 and ISBN 1-58563-236-8 Portions (c) 2001-2002 CoGenTex, Inc., Trustees of the University of Pennsylvania
Han, Chung-hye, Na-Rae Han and Eon-Suk Ko (2001) Bracketing guidelines for Penn Korean Treebank, Technical Report, IRCS-01-10, Institute of Research in Cognitive Sciences, University of Pennsylvania.
Na-Rae Han, Eon-Suk Ko, David Graff, Stephanie Strassel, Nii Martey, Myeonchul Kim, Alexandra Canavan, George Zipperlen (2003) Korean Telephone Conversations Complete Set, , Linguistic Data Consortium (LDC) catalog number LDC2003P01 and ISBN 1-58563-267-8.