Publications
2024
Knowles, T., Adams, S.G., & Jog, M. (2024). Effects of speech rate modifications on phonatory acoustic outcomes in Parkinson disease. Frontiers in Human Neuroscience, 18. doi: 10.3389/fnhum.2024.1331816
Gates, K., Knowles, T., Mach, H., & Higginbotham, J. (in press). Clinical Insights Into the Use of Speech Amplification Devices for Managing Hypophonia: Interviews With Speech-Language Pathologists. American Journal of Speech-Language Pathology. doi: 10.1044/2024\_AJSLP-23-00396
Gates, K., Knowles, T., Mach, H., & Higginbotham, J. (in press). Speech Amplification Device Usage for the Management of Hypophonia: A Survey of Speech-Language Pathologists. American Journal of Speech-Language Pathology. doi: 10.1044/2024_AJSLP-23-00395
2023
Badh, G., & Knowles, T. (2023). Acoustic and perceptual impact of face masks on speech: A scoping review. PLOS ONE, 18(8), e0285009. doi: 10.1371/journal.pone.0285009
Cline, N., Knowles, T., & Badh, G. (2023). Effect of Face Masks and Speech Style on Speech Intelligibility and Listener Effort in Parkinson’s Disease. American Journal of Speech-Language Pathology. doi: 10.1044/2023_AJSLP-23-00085
Knowles, T., & Badh, G. (2023). Impact of Face Masks on Speech in Parkinson’s Disease: Effect of Clear and Loud Speech Styles. Journal of Speech, Language, and Hearing Research, 1–24. doi: 10.1044/2022_JSLHR-22-00291
Page, A., Schroeder, J-R., Knowles, T., Jog, M, & Adams, S.G. (2023). A Comparison of Voice Amplifiers and Personal Communication Systems for Hypophonia: An Exploration of Communicative Participation. American Journal of Speech-Language Pathology, 32(4S), 1850-1865. doi: 10.1044/2023_AJSLP-22-00161
Knowles, T., Clayards, M., Cline, N.(2023). Acoustic prominence of verbal instructions in Parkinson’s disease. Acoustical Society of America.doi:10.1121/10.0018536
Aveni, K., Ahmed, J., Borovsky, A., McRae, K., Jenkins, E.M., Sprengel, K., Fraser, J.A., Orange, B.J, Knowles, T., Roberts, C.A. Predictive language comprehension in Parkinson’s disease.doi:10.1371/journal.pone.0262504
2022
Knowles, T., Badh, G. (2022). The impact of face masks on spectral acoustics of speech: Effect of clear and loud speech styles. The Journal of the Acoustical Society of America. doi:10.1121/10.0011400
Badh, G., Knowles, T. (2022). Acoustic and perceptual impact of face masks on speech: A scoping review (preprint). OSF. doi:10.31219/osf.io/fpsu2
2021
Knowles, T., Adams, S.G., Jog, M. (2021). Speech rate mediated vowel and stop voicing distinctiveness in Parkinson’s disease. Journal of Speech, Language, and Hearing Research.doi:/10.1044/2021_JSLHR-21-00160.
Knowles, T., Adams, S.G., Jog, M. (2021). Variation in speech intelligibility ratings as a function of speech rate modification in Parkinson’s disease. Journal of Speech, Language, and Hearing Research. doi:10.1044/2021_JSLHR-20-00593.
2020
Sonderegger, M., Smith, S.S., Knowles, T., Macdonald, R., Rathcke, T. (2020). Structured heterogeneity in Scottish stops over the 20th Century. Language. doi:10.1353/lan.2020.0003.
Adams, S.G., Kumar, N., Rizek, P., Hong, A., Zhang, J. Senthinathan, A., Mancinelli, C., Knowles, T., Jog, M. (2020). Efficacy and acceptance of a Lombard-response device for hypophonia in Parkinson’s disease. Canadian Journal of Neurological Sciences. doi:10.1017/cjn.2020.90.
Knowles, T., Adams, S.G, Jog, M. (2020). A comparison of speech amplification and personal communication devices in hypophonia. Journal of Speech, Language, and Hearing Research. doi:10.1044/2020_JSLHR-20-00085.
2019
Abeyesekera, A., Adamas, S.G., Mancinelli, C., Knowles, T., Gilmore, G., Delrobaei, M., Jog, M. (2019). Effects of deep brain stimulation of the subthalamic nucleus settings on voice quality, intensity, and prosody in Parkinson’s disease: Preliminary evidence for speech optimization. Canadian Journal of Neurological Sciences. doi:10.1017/cjn.2019.16
Knowles, T. (2019). Changes in Speech Intelligibility and Acoustic Distinctiveness Along a Speech Rate Continuum in Parkinson’s Disease. The University of Western Ontario.
2018
Knowles, T., Clayards, M., Sonderegger, M. (2018). Examining factors influencing the viability of automatic acoustic analysis of child speech. Journal of Speech, Language, and Hearing Research. doi:10.1044/2018_JSLHR-S-17-0275
Adams, S.G., Abeyesekera, A., Mancinelli, C., Knowles, T., Gilmore, G., Jog, M. (2018). Deep brain stimulation of the subthalamic nucleus parameter optimization for vowel acoustics and speech intelligibility in Parkinson’s disease. Journal of Speech, Language, and Hearing Research. doi:10.1044/2017_JSLHR-S-17-0157