Research Interests

My research in phonology focuses on two key questions. First, how is phonological knowledge shaped in language-contact situations? I explore this through loanword phonology, examining how linguistic and extra-linguistic factors influence the adaptation of foreign words, and through code-switching, investigating how bilingual speakers apply phonological rules across language boundaries.

Second, how does phonological knowledge interact with the lexicon? Borrowed words often form distinct lexical strata, either reflecting existing phonological patterns or introducing new ones, possibly shaped by Universal Grammar. I study the mechanisms behind these processes and broader lexicon-phonology interactions, including the role of exceptions and frequency in shaping phonology.

Publications

Journal Articles

• Katsuda, H. & Kang, Y. (Resubmitted). Speaking rate effects on Japanese vowel and consonant length contrasts. Journal of Phonetics.
• Breiss, C., Katsuda, H. & Kawahara, S. (To appear). Token frequency in the grammar: a case study in Japanese Voiced Velar Nasalization. Phonology.
• Katsuda, H. (To appear). A probabilistic model of loanword accentuation in Japanese. Phonology. [pdf]
• Katsuda, H. & Sundara, M. (2024). English-learning infants developing sensitivity to vowel phonotactic cues to word segmentation. Developmental Science (brief paper). [pdf]
• 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. [link]
• Sundara, M., Zhou, Z. L., Breiss, C., Katsuda, H. & Steffman, J. (2022). Infants developing sensitivity to native language phonotactics: A Meta-analysis. Cognition, 221, 104993. [link]
• Kandybowicz, J., Baron, B., Duncan, P. T. & Katsuda, H. (2021). Documenting the Ikpana Interrogative System. Journal of African Languages and Linguistics, 42(1), 63-100.
• 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. [link]
• 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

• Breiss, C., Katsuda, H. & Kawahara, S. (In prep.). Modeling frequency-conditioned paradigm uniformity in Japanese voiced velar nasalization.
• Katsuda, H. Puigdelliura-Repiso, G. & Zuraw, K. (In prep.). Applying tapping across language boundaries in English-Spanish code-mixed utterances.

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) (Proposal accepted: 8/4/2020)

Book Chapters

• Kang, Y., & Katsuda, H. Loanword phonology. (Submitted). 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, 27.1.
• 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 2019, 3817-3821.