Katsura Aoyama

Previous Scheduled Teaching

Published Intellectual Contributions

Abstracts and Proceedings

• Aoyama, K., Flege, J.E., Yamada, T., Akahane-Yamada, R. (2019). Acoustical analysis of English voiceless fricatives (/f θ s/) by native Japanese adults and children. 145 (3) 1826.
• Aoyama, K., Flege, J.E., Akahane-Yamada, R., Yamada, T. (2017). Acoustical analysis of English /r/ and /l/ by native Japanese adults and children. The Journal of the Acoustical Society of America. 141 (5) 3515.
• Akbari, C., Aoyama, K., Dembowski, J. (2015). Persian Speakers of English: Acoustic of vowel epenthesis. The Journal of the Acoustical Society of America. 137 (4) 2381.
• Oh, G.E., Flege, J.E., Aoyama, K., Akahane-Yamada, R., Yamada, T. (2009). A longitudinal study of English and Japanese vowel production by Japanese adults and children in an English-speaking setting. Journal of Acoustical Society of America. 126 2312.
• Dembrowski, J., Aoyama, K. (2006). Acoustic patterns of Japanese voiced velar stops. The Journal of the Acoustical Society of America. 120 (5) 3248-3249.
• Aoyama, K.. (2003). An acoustic analysis of geminate consonants in Guinaang Bontok. University of Hawai'i at Manoa.
• Aoyama, K.. (2001). An OT analysis of the Japanese coda nasal. In L. Lower & H. E. Koh (Eds.).
• Aoyama, K.. (2001). Perception and production of English consonants by Japanese adults and children..
• Aoyama, K.. (1999). The acquisition of quantity contrast in nasal consonants: Children's production.
• Aoyama, K.. (1997). An NP and OT analysis: Production of nasal phonemes by Japanese speakers.

Book

• Aoyama, K.. (2001). A psycholinguistic perspective on Finnish and Japanese prosody: Perception, production and child acquisition of consonantal quantity distinctions. Kluwer.

Book Chapter

• Aoyama, K. (2021). Changes in the first year of immersion: An acoustic analysis of /s/ produced by Japanese adults and children. Second language speech learning: Theoretical and empirical processes. 213-227. Cambridge, Cambridge University Press.
• Flege, J.E., Aoyama, K., Bohn, O.S. (2021). The revised Speech learning model (SLM-r) applied. Second language speech learning: Theoretical and empirical processes. 84-118. Cambridge, Cambridge University Press.
• Aoyama, K., & Guion, S. G.. (2007). Prosody in second language acquisition: An acoustic analysis on duration and F0 range. In O.-S. Bohn & M. J. Munro (Eds.), The role of language experience in second-language speech learning: In honor of James Emil Flege (pp. 281-297).
• Aoyama, K.. (2005). Geminates in Guinaang Bontok: Sonority hierarchy and phonetic realization. In H.-C. Liao & C.R.G. Rubino (Eds.) Current issues in Philippine linguistics and anthropology.

Book Review

• Aoyama, K.. (2004). Review of "Production of word structures: A constraint-based study of 2;6 year old Finnish children at-risk for dyslexia and their controls". Puhe ja Kieli [Speech and Language], 24, 168-171..

Conference Proceeding

• Aoyama, K., Flege, J.E., Akahane-Yamada, R., Yamada, T. (2018). Acoustical analysis of English /r/ and /l/ by native Japanese adults and children.. Proceedings of the Meetings in Acoustics. 30 060008.
• Aoyama, K., Akbari, C., Flege, J.E. (2016). Prosodic characteristics of American English in school-age children. Other. Speech Prosody. 572-576.
• Dembowski, J. & Aoyama, K.. (2009). Acoustic and kinematic patterns of Japanese stop consonants.
• Dembowski, J. & Aoyama, K.. (2006). Acoustic patterns of Japanese voiced velar stops.
• Aoyama, K., Flege, J. E., Guion, S. G., Akahane-Yamada, R., & Yamada, T.. (2003). Foreign accent in English words produced by Japanese children and adults. In M. J. Solé & D. Recasens & J. Romero (Eds.).
• Aoyama, K.. (2002). Request strategies at a Japanese workplace. In A. Bell & J. Shoemaker & G. Sibley (Eds.).
• Aoyama, K.. (2001). Geminates and singleton: On 'unstretchability' of single semgents. In B. Palek & O. Fujimura (Eds.).
• Aoyama, K.. (2000). Acquiring mora-timing: The case of the Japanese coda nasal. In M. Nakayama & C. J. J. Quinn (Eds.).
• Aoyama, K.. (1999). Reanalyzing the Japanese coda nasal in Optimality Theory. In S. J. Hwang & A. R. Lommel (Eds.).

Dissertation

• Aoyama, K.. (2000). The acquisition of Japanese prosody: children's production and perception of the nasal quantity contrast. In E. V. Clark (Ed.).

Journal Article

• Davis, B.L., Aoyama, K., Cassidy, R. (2023). Bye-bye bunny: Place and manner sequences in children’s C1VC2V-shaped words.. Journal of Speech and Hearing Research. 66 (2) 527-544.
• Aoyama, K., Hong, L., Flege, J., Yamada, R., Yamada, T. (2023). Relationships between acoustic characteristics and intelligibility scores: Japanese adults’ and children’s productions of American English liquids. Language and Speech. 66 (4) SageJournals.
• Cassidy, R., Aoyama, K., Davis, B.L. (2022). Phonetic characteristics of children’s early words in German: Data from typically-developing children with clinical implications. Perspectives of the ASHA Special Interest Groups. 885-896.
• Aoyama, K., Davis, B. (2021). Relationship between the target word form and children’s productions: Place of articulation in Consonant-Vowel-Consonant (C1VC2) words in American English. Phonetica. 78 65-94.
• Akbari, C., Aoyama, K. (2020). Epenthetic Vowels and Phonemic Vowels: Same or Different?. Perspectives of the ASHA Special Interest Groups. 1-8. ASHA.
• Aoyama, K., Flege , J.E., Akhane-Yamada , R., Yamada, T. (2019). An acoustic analysis of American English liquids by adults and children: Native English speakers and native Japanese speakers of English The Journal of the Acoustical Society of America. Journal of the Acoustival Society of America. 146 (4) 2671-2681.
• Schafer, E.C., Aoyama, K., Ho, T., Costillo, P., Conlin, J., Jones, J., Thompson, S. (2018). Speech recognition in noise in adults and children who speak English or Chinese as their first language.. Journal of the American Academy of Audiology. 29 (10) 885-897.
• Wright, S.C., Joshi, A.P., Schafer, E.C., Aoyama, K., Ho, T., Anderson, C., Dyson, J., Box, J. (2017). A pilot study on the effects of nonlinear frequency compression on performance of individuals who speak Mandarin Chinese. Other. XLIX 1-12.
• Aoyama, K., Davis, B.L. (2017). Nonadjacent consonant sequence patterns in English target words during the first-word period. Journal of Child Language. 44 1065-1087. Cambridge University Press.
• Aoyama, K., Reid, L.A. (2016). The acquisition of quantity contrasts in Guina-ang Bontok. First Language. 36 (6) 570-579. Sage.
• Oh, G.E., Guion-Anderson, S., Aoyama, K., Flege, J.E., Akahane-Yamada, R., Yamada, T. (2011). A longitudinal study of English and Japanese vowel production by Japanese adults and children in an English-speaking setting. Journal of Phonetics.
• Aoyama, K., & Flege, J. E.. (2011). Effects of L2 experience on perception of English /r/ and /l/ by native Japanese speakers. The Journal of the Phonetic Society of Japan.
• Aoyama, K., Peters, A.M., Winchester, K.S. (2010). Phonological changes during the transition from one-word to productive word combination. Journal of Child Language.
• Valerie, G., Aoyama, K. (2009). Illustrations of the IPA: Mavea. Journal of the International Phonetic Association.
• Harendt, S. E., Aoyama, K., Gustafson, T. J. S., & Sancibrian, S.. (2009). Use of Fast ForWord® in regular classroom with students who speak Spanish and English. TEJAS: Texas Journal of Audiology and Speech-Language Pathology.
• Flores, L. & Aoyama, K.. (2008). A comparison of psychometric performance on four modified Spanish-word-recognition tests. TEJAS: Texas Journal of Audiology and Speech-Language Pathology.
• Aoyama, K., Guion, S. G., Flege, J. E., Yamada T., & Akahane-Yamada, R.. (2008). The first years in an L2-speaking environment: A comparison of Japanese children and adults learning American English.. International Review of Applied Linguistics in Language Teaching.
• Aoyama, K., & Reid, L. A.. (2006). Cross-linguistic tendencies and durational contrasts in geminate consonants: An examination of Guinaang Bontok geminates. Journal of the International Phonetic Association.
• Leiwo, M., Kulju, P., & Aoyama, K.. (2006). The acquisition of Finnish vowel harmony. In A. Airola, A. Arppe, O. Heinämäki, M. Miestamo, K. Sinnemäki, U. Määttä, J. Niemi, K. K. Pitkänen & M. Suominen (Eds.). SKY Journal of Linguistics.
• Aoyama, K., Flege, J. E., Guion, S. G., Akahane-Yamada, R., & Yamada, T.. (2004). Perceived phonetic dissimilarity and L2 speech learning: The case of Japanese /r/ and English /l/ and /r/. Journal of Phonetics.
• Aoyama, K.. (2003). Cross-linguistic preference and the phonetics of geminates: Place of articulation and duration of phonologically short and long consonants in Guinaang Bontok..
• Aoyama, K. (2003). Perception of syllable-initial and syllable-final nasals in English by Korean and Japanese speakers. Second Language Research.
• Aoyama, K.. (2002). Choofuku shiin to tanshiin: Finrando go to nihongo ni okeru sanshutsu to chikaku [Geminates and singleton: Production and perception in Finnish and Japanese]..
• Aoyama, K., Guion, S. G., Yamada, T., & Akahane-Yamada, R.. (2002). Japanese adults' and children's production and perception of English fricatives: A longitudinal study.
• Aoyama, K., & Flege, J. E.. (2002). Perceptual assimilation patterns and the perception of English /l/ and /r/ by Japanese speakers..
• Aoyama, K.. (2002). Quantity contrasts in Japanese and Finnish: differences in adult production and acquisition. In Y. Shirai & H. Kobayashi & S. Miyata & K. Nakamura & T. Ogura & H. Shirai (Eds.).

Newsletter

• Aoyama, K. (2023). Foundation news: Scholarships awarded at the Texas Speech-Language-Hearing Foundation event. Communicologist.
• Aoyama, K. (2022). 21 Scholarships awarded at the Texas Speech-Language-Hearing Foundation breakfast.
• Aoyama, K. (2021). Scholarships awarded at the virtual Texas Speech-Language-Hearing Foundation event.
• Aoyama, K. (2020). Students Benefit from the Texas Speech-Language-Hearing Foundation.
• Aoyama, K. (2019). Scholarships awarded at Texas Speech-Language-Hearing Foundation breakfast.
• Aoyama, K. (2018). Students benefit from the Texas Speech-Language-Hearing Foundation.

Contracts, Grants and Sponsored Research

Grant - Research

• Aoyama, K., "Seed Grant," sponsored by University of North Texas, University of North Texas, $976 Funded. (2023).
• Lam, B.P., Aoyama, K., "Establishing an emotional narrative database of bilinguals: A cultural-linguistic research experience program," sponsored by American Speech-Language-Hearing Association, National, $10700 Funded. (2022 - 2023).
• Aoyama, K., "Research Incentive program," sponsored by University of North Texas, University of North Texas, $3000 Funded. (2022 - 2022).
• Aoyama, K., "Summer Research Grant," sponsored by University of North Texas, University of North Texas, $1250 Funded. (2021 - 2021).
• Aoyama, K. (Other), "Micro-mentoring grant," sponsored by UNT Faculty Success, University of North Texas, $1217 Funded. (2017 - 2018).
• Way, J.E. (Co-Principal), Golden, T. (Principal), Aoyama, K. (Co-Principal), Klaver, I. (Co-Principal), "Faculty Mentoring Grant: 2016-2017 Faculty Writing Group," sponsored by Faculty Success Office of the Provost, University of North Texas, $5000 Funded. (2016 - 2017).
• Schafer, E.C. (Principal), Aoyama, K. (Co-Principal), "Effects, of nonlinear frequency compression on performance of individuals who speak Mandarin Chinese and have hearing loss," sponsored by American Speech-Language-Hearing Association, Private, $15000 Funded. (2014 - 2015).
• Aoyama, K. (Other), "Micro-mentoring grant," sponsored by UNT Faculty Success, University of North Texas, $1380 Funded. (2014 - 2015).
• Schafer, E.C. (Principal), Aoyama, K. (Co-Principal), "Effects of Nonlinear Frequency Compression on Performance of Individuals Who Speak Mandarin Chinese and have Hearing Loss," sponsored by American Speech-Language-Hearing Foundat, NFP, Funded. (2014 - 2017).

Grant - Service

• Boesch, M.C. (Principal), Aoyama, K. (Co-Principal), Mehta, S. (Co-Principal), "Project Communicate," sponsored by Office of Special Education Programs, Federal, $1244239 Funded. (2022 - 2027).
• Golden, T., Aoyama, K., "Faculty Writing Group," sponsored by University of North Texas, University of North Texas, $2500 Funded. (2022 - 2023).
• Golden, T., Aoyama, K., "Faculty Writing Group," sponsored by University of North Texas, University of North Texas, $2500 Funded. (2021 - 2022).
• Golden, T., Aoyama, K., "Faculty Writing Group," sponsored by University of North Texas, University of North Texas, $2500 Funded. (2020 - 2021).
• Golden, T. (Principal), King, K. (Co-Principal), Aoyama, K. (Co-Principal), Wilson, A. (Co-Principal), "Faculty Mentoring: 2015‑2016 Faculty Writing Group," sponsored by Vice Provost for Faculty Success, University of North Texas, $4260 Funded. (2015 - 2016).

Sponsored Research

• Way, J. (Co-Principal), Golden, T. (Principal), Aoyama, K. (Co-Principal), Klaver, I. (Co-Principal), "Faculty Mentoring: 2017-to present, UNT Faculty Writing Group," sponsored by Faculty Success (Office of the Provost), University of North Texas, $5000 Funded. (2017 - 2020).