Research
Research Interests
My reseach program has three main goals: (1) to delve into the nature of phonological knowledge by examining language-contact phenomena, including loanword phonology, bilingual phonology, cross-language phonology; (2) to investigate the production and perception of phonetic variations; and (3) to understand the sound systems of understudied languages. To achieve these goals, I employ a diverse set of research methodologies, such as corpus analysis, computational modeling, experiments, intonational analysis, and fieldwork.
Current Projects
Loanword phonology:
Cross-language phonology: This project seeks to examine the application of cross-word phonological rules (e.g., English tapping, Spanish spirantization) in code-mixed contexts. Specifically, we aim to determine whether and how bilinguals apply a rule when its structural description involves elements from two different languages (in collaboration with Dr. Gemma Repiso Puigdelliura and Prof. Kie Zuraw)
Production and perception of phonetic variations: This study delves into the effect of speaking rate on the vowel and stop length contrasts in Japanese (in collaboration with Prof. Yoonjung Kang).
Phonotactic learning by English-learning infants: This study explores when and how English-learning infants develop their sensitivity to the vowel phonotactic constraints (i.e., typical English words do not end in lax vowels). (in collaboration with Prof. Megha Sundara)
Publications
Journal Articles
Katsuda, H. Puigdelliura-Repiso, G. & Zuraw, K. (Submitted) Phonological processes in code-mixed utterances: Applying tapping across English-Spanish language boundaries.
Katsuda, H. & Kang, Y. (Submitted) Speech rate effects on Japanese vowel and stop length contrasts.
Katsuda, H. (In revision) A probabilistic model of loanword accentuation in Japanese. Phonology.
Breiss, C., Katsuda, H., & Kawahara, S. (In revision). Token frequency in the grammar: a case study in Japanese Voiced Velar Nasalization Phonology.
Katsuda, H. & Steffman, J. (2022). Asymmetrical roles of segment and pitch accent in Japanese spoken word recognition. Journal of the Acoustical Society of America Express Letters 2(6), 065201.
Sundara, M., Zhou, Z. L., Breiss, C., Katsuda, H. & Steffman, J. (2022). Infants developing sensitivity to native language phonotactics: A Meta-analysis. Cognition 222, 104993.
Kandybowicz, J., Baron, B., Duncan, P. T. & Katsuda, H. (2021). Documenting the Ikpana Interrogative System. Journal of African Languages and Linguistics.
Steffman, J. & Katsuda, H. (2021). Intonational structure influences perception of contrastive vowel length: the case of phrase-final lengthening in Tokyo Japanese. Language and Speech 64(4), 839-858.
Kawahara, S., Katsuda, H. & Kumagai, G. (2019). Accounting for the stochastic nature of sound symbolism using Maximum Entropy model. Open Linguistics 5, 109-120.
Manuscripts
Katsuda, H. & Sundara, M. (In prep.) Infants developing sensitivity to vowel phonotactic constraints in English.
Books
Kandybowicz, J., Baron, B., Duncan, P. T. & Katsuda, H. (2023). Ikpana Interrogatives. Oxford University Press. (OXFORD STUDIES IN AFRICAN LINGUISTICS)
Kandybowicz, J., Baron, B., Duncan, P. T. & Katsuda, H. (In prep.). Aspects of Ikpana Grammar. München: Lincom Publishers. (LINCOM STUDIES IN AFRICAN LINGUISTICS)
Book Chapters
Kang, Y. & Katsuda, H. Loanword phonology. In Companion to Phonology, eds. Nasukawa, K., Samuels, B., Schwartz, G., Törkenczy, M. Malden, MA.: Wiley Blackwell.
Conference Proceedings
Katsuda, H. & Steffman, J. (2022). Prominence-boundary interactions in speech perception: evidence from Japanese vowel length. Proceedings of the 1st International Conference on Tone and Intonation, 200-204.
Breiss, C., Katsuda, H., & Kawahara, S. (2021). Paradigm uniformity is probabilistic: evidence from velar nasalization in Japanese. Proceedings of WCCFL 39. Somerville, MA: Cascadilla Proceedings Project.
Breiss, C., Katsuda, H., & Kawahara, S. (2021). A quantitative study of voiced velar nasalization in Japanese. Proceedings of the 45th Penn Linguistics Conference, U. Penn Working Papers in Linguistics, Volume 27.1 2021.
Katsuda, H. & Steffman, J. (2020). Intonational cues to prosodic boundary influence perception of contrastive vowel length in Tokyo Japanese. Proceedings of the 10th International Conference on Speech Prosody, 56-60.
Katsuda, H. (2019). A preliminary model of Ikpana intonational phonology. Proceedings of International Congress of Phonetic Sciences.