Dr. Keiko Ishikawa, PhD, MM, CCC-SLP | University of Kentucky College of Health Sciences

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Keiko Ishikawa, Ph.D. is an Assistant Professor in the Department of Communication Sciences and Disorders. The overarching goal of her research program is to generate knowledge that will guide clinical decision-making for directly addressing the communicative ability of individuals with voice and speech disorders. Her work focuses on two major areas: (1) the contribution of voice disorders to intelligibility deficits in real-world communication environments, and (2) the effect of the environments on speakers' ability to implement voice and speech therapy techniques. Dr. Ishikawa's research program lies at the interface of psycho- and physical-acoustic science, linguistics, and cognitive science.

Dr. Ishikawa received her Ph.D. in Communication Sciences and Disorders, and the Certificate in Clinical & Translation Research at the University of Cincinnati. She also holds a Masters in Music in Vocal Performance and Pedagogy from Westminster Choir College and a Bachelor of Art from Ferris University. Dr. Ishikawa is an American Speech-Language-Hearing Association certified speech-language pathologist. Prior to joining the University of Kentucky, she worked as a speech-language pathologist at the Blaine Block Institute for Voice Analysis and Rehabilitation, and Massachusetts Eye and Ear Infirmary.

Selected Publications in Peer-Reviewed Journals

Orbelo, D. M., Charney, S. A., Renkert, E., Pietrowicz, M., Aka, D., Bayan, S. L., & Ishikawa, K. (2024). Vocal Effort and Acoustic Analysis of Gargle Phonation Versus Water Swallow in Patients With Muscle Tension Dysphonia: A Clinical Trial. Journal of Voice. https://doi.org/10.1016/j.jvoice.2024.02.018

Ishikawa, K., Li, H., Coster, E. (2023). The Effect of Noise on Initiation and Maintenance of Clear Speech and Associated Cognitive Load: A Pilot Study. Journal of Speech-Language-Hearing Research. https://doi.org/10.1044/2023_JSLHR-23-00157

Matoh, S., Watanabe, K., Miyamoto, M., Nakagawa, H., Ishikawa, K., Saito, K. (2023) Impact of Speech and Language Therapy on Chronic Cough in Japan, vol. 64 (4), 244-251 The Japan Journal of Logopedics and Phoniatrics, https://doi.org/10.5112/jjlp.64.244

Ishikawa, K., Pietrowicz, M., Charney, S., Orbelo, D. (2023) Landmark-based analysis of speech differentiates conversational from clear speech in speakers with muscle tension dysphonia. Journal of Acoustical Society of America Express Letters, 3(5), https://doi.org/10.1121/10.0019354

Hashemi Hosseinabad, H., Ishikawa, K., & Washington, K. (2022). Agreements between speech language pathologists and naïve listeners’ judgements of Intelligibility in children with cleft palate. Clinical Linguistics & Phonetics, 36(11), 1010-1028. doi: https://doi.org/10.1080/02699206.2021.1983021

Bottalico, P., Murgia, S., Puglisi, GE, Astolfi, A., Ishikawa, K. (2021) Intelligibility of dysphonic speech in auralized classrooms, The Journal of the Acoustical Society of America 150 (4), 2912-2920. doi: https://doi.org/10.1121/10.0006741

Ishikawa, K., Webster, J., & Ketring, C. (2021). Agreement between Transcription-and Rating-Based Intelligibility Measurements for Evaluation of Dysphonic Speech in Noise. Clinical Linguistics & Phonetics, 1-13. doi: https://doi.org/10.1080/02699206.2020.1852602

Ishikawa, K., Nudelman, C., Park, S., & Ketring, C. (2021). Perception and Acoustic Studies of Vowel Intelligibility in Dysphonic Speech. Journal of Voice. doi: https://doi.org/10.1016/j.jvoice.2019.12.022

Ishikawa, K., & Webster, J. (2020). The Formant Bandwidth as a Measure of Vowel Intelligibility in Dysphonic Speech. Journal of Voice. doi: https://doi.org/10.1016/j.jvoice.2020.10.012

Ishikawa, K., MacAuslan, J., Rao, M.B., Boyce, S. (2020) Application of a Landmark-Based Method for Acoustic Analysis of Dysphonic Speech, Journal of Voice, 34 (4), 645. e11-645. e18. doi: https://doi.org/10.1016/j.jvoice.2018.12.017

Garrity, A, Keck, C., Bradshow, J., Ishikawa, K. (2019) Toward the Development of a Quick, Reliable Assessment Tool for Reflective Journals, Teaching and Learning in Communication Sciences & Disorders, 3(2), Article 8. doi: https://doi.org/10.30707/TLCSD3.2Garrity

Ishikawa, K., de Alarcon, A., Khosla, S., Kelchner, L., Silbert, N., Boyce, S. (2018) Predicting Intelligibility Deficit in Dysphonic Speech with Cepstral Peak Prominence. Annals of Otology, Rhinology and Laryngology, 127(2), 69-78. doi: https://doi.org/10.1177/0003489417743518

Ishikawa, K., Boyce, S., Kelchner, L., Powell, M. G., Schieve, H., de Alarcon, A., & Khosla, S. (2017). The Effect of Background Noise on Intelligibility of Dysphonic Speech. Journal of Speech, Language, and Hearing Research, 60(7), 1919-1929. doi: https://doi.org/10.1044/2017_JSLHR-S-16-0012

Ishikawa, K., MacAuslan, J., Boyce, S. (2017) Towards Clinical Application of Landmark-Based Speech Analysis: Landmark Expression in Normal Adult Speech. Journal of Acoustical Society of America, 142(5), EL441-EL447. doi: https://doi.org/10.1121/1.5009687

Ishikawa, K., Thibeault, S. (2010) Voice Rest versus Exercises: A Review of the Literature. Journal of Voice, 24(4): 379-387. doi: https://doi.org/10.1016/j.jvoice.2008.10.011

Vyas, B, Ishikawa K, Duflo, S, Chen, X, Thibeault, S.L., (2010) Inhibitory effects of hepatocyte growth factor and interleukin-6 on transforming growth factor-beta1 mediated vocal fold fibroblast-myofibroblast differentiation. The Annals of Otology, Rhinology, and Laryngology, 119(5):350-357. doi: https://doi.org/10.1177/000348941011900513

Conference Proceeding Papers

Ishikawa, K., Kirkham, C., Samenuk, J., Weaver, R., Orbelo, D. (2023). Assessing Cognitive Load of Talking in Whispers and Clear Speech with a modified Simon Task. Forum Acusticum 2023, https://appfa2023.silsystem.solutions/atti/000562.pdf

Ishikawa, K., Coster, E., Li, H., Orbelo, D. (2023). The Use of Pupillometry to Study Mental Demand during Speech Production in Noise. Forum Acusticum 2023, https://appfa2023.silsystem.solutions/atti/000929.pdf

Pietrowicz, M., Orbelo, D., Kamboj, A., Yarlagadda, M. K., Buller, K. Charney, S., Leggett, C., Ishikawa, K., (2023). Developing a Machine-Learning model for Detecting Intelligibility Differences in Individuals with Voice Disorders: A Feasibility Study. Forum Acusticum 2023, https://appfa2023.silsystem.solutions/atti/000922.pdf

Pietrowicz, M., Kamboj, A., Ishikawa, K., Orbelo, D., Yarlagadda, M. K., Buller, K., Leggett, C. (2023). Exploring Automated Detection of Barrett’s Esophagus via Machine Modeling and Acoustic Analysis. Forum Acusticum 2023, https://appfa2023.silsystem.solutions/atti/000922.pdf

Ishikawa, K., Eap, T., Happ, M., Kaiser, L. (2018) Application of Automatic Speech Recognition Technology for Describing Intelligibility Deficit in Dysphonic Speech. Proceedings of the 11th International Conference on Voice Physiology and Biomechanics. East Lansing, MI.

Book Chapters

Garrity, A., Keck, C., Ishikawa, K. (2021) Effective and Efficient Assessment of Reflective Journals, Case Studies in Evidence-Based Education: A Resource for Teaching in Clinical Professions, SLACK Incorporated

Keck, C., Garrity, A., Ishikawa, K. (2021) Shared Mission: U.S.A.: Preparing Students to Work with Military Services members/Veterans with TBI, Case Studies in Evidence-Based Education: Case Studies in Evidence-Based Education: A Resource for Teaching in Clinical Professions, SLACK Incorporated

Ishikawa, K. (2014) Supplement on Wound Healing and the Vocal Folds. In Kelchner, L.N., Brehm, S.B., and Weinrich, B.D. (Authors), Pediatric Voice: A Modern, Collaborative Approach to Care. (pp.197-203). San Diego, CA: Plural Publishing

Ishikawa, K. (2014) Anatomy and Physiology of the Pediatric Upper aerodigestive Tract, Larynx, and Respiratory System: Vocal Fold Microstructure, Basics of Histology, Developmental Changes in the Vocal Fold Across the Lifespan. In Kelchner, L.N., Brehm, S.B., and Weinrich, B.D. (Authors) Pediatric Voice: A Modern, Collaborative Approach to Care. (pp.23-31). San Diego, CA: Plural Publishing

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