Stipancic, K., van Brenk, F., Qui, M., Tjaden., K. (accepted). Progress toward estimating the minimal clinically important difference of intelligibility: A crowdsourced perceptual experiment. Journal of Speech, Language Hearing Research.
Van Brenk, F., Stipancic, K., Rohl., A., Corcos, D., Tjaden, K., & Greenlee. DBS (2024). No Differential Effects of Subthalamic Nucleus vs. Globus Pallidus Deep Brain Stimulation in Parkinson’s Disease: Speech Acoustic and Perceptual Findings. IBRO Neurosci Rep. 2024 Feb 3;16:361-367. doi: 10.1016/j.ibneur.2024.01.015.
Manes, J.L., Kurani, A.J., Herschel, E., Roberts, A., Tjaden, K., Parrish, T., & Corcos, D.M. (2023). Premotor cortex is hypoactive during sustained vowel production in individuals with Parkinson’s disease and hypophonia. Frontiers in Human Neuroscience. 17:1250114 doi:10.3389/fnhum.2023.1250114
Van Brenk, F., Lowit, A., & Tjaden, K. (2023). Effects of speaking rate on variability of second formant frequency transitions in dysarthria. Folia Phoniatrica. Sep 28:10.1159/000534337. doi: 10.1159/000534337. Epub ahead of print.
Johari, K., Kelley, R., Tjaden, K., Patterson, C. Rohl, A., Berger, J., Corcos, D. & Greenlee, J (2023). Human STN neurons differentially encode speech and limb movements. Frontiers in Neuroscience. doi: 10.3389/fnhum.2023.962909.
Stipancic, K. L., & Tjaden, K. (in press). Minimally detectable change of speech intelligibility in speakers with multiple sclerosis and Parkinson’s disease. Journal of Speech, Language, and Hearing Research.
Kopf, L., Rohl, A., Nagao, T., Bryant, K, Johari, K., Tjaden, K., & Greenlee, J. (2022). Voice handicap Index in Parkinson’s patients: Subthalamic versus globus pallidus deep brain stimulation. Journal of Clinical Neuroscience, 98, 83-88. doi:10.1016/j.jocn.2022.01.029.
van Brenk, F., Stipancic, K. L., Kain, A., & Tjaden, K. (2022). Intelligibility Across a Reading Passage: The Effect of Dysarthria and Cued Speaking Styles. American Journal of Speech-Language Pathology, 31(1), 390-408. doi:/10.1044/2021_AJSLP-21-00151
Manes, J. L., Herschel, E., Aveni, K., Tjaden, K., Parrish, T., Simuni, T. & Roberts, A. C. (2021). The effects of a simulated fMRI environment on voice intensity in individuals with Parkinson’s disease hypophonia and older healthy adults. Journal of Communication Disorders, 94, 106149. doi:10.1016/j.jcomdis.2021.106149
van Brenk, F., Kain, A., & Tjaden, K. (2021). Investigating acoustic correlates of intelligibility gains and losses during slowed speech: A hybridization approach. American Journal of Speech-Language Pathology, 30(3S), 1343-1360. doi:10.1044/2021_AJSLP-20-00172
Feenaughty, L., Guo, L., Weinstock-Guttman, B., Ray, M., Benedict, R., & Tjaden, K. (2020). Impact of cognitive impairment and dysarthria on spoken language in multiple sclerosis. Journal of the International Neuropsychological Society, 27(5), 450-460. doi:10.1017/S1355617720001113
Johnson, R., Kim, N., Tjaden, K., & Mefferd, A. (2020). Articulatory strategies and their acoustic consequences: Investigating tongue retraction and lip protrusion tradeoffs in talkers with amyotrophic lateral sclerosis. The Journal of the Acoustical Society of America, 148(4), 2583-2583. doi:10.1121/1.5147173
Manes, J.L, Tjaden, K., Parrish, T., Simuni, T., Roberts, A., Greenlee, J.D., Corcos, D.M., Kurani, A.S. (2018). Altered resting‐state functional connectivity of the putamen and internal globus pallidus is related to speech impairment in Parkinson’s disease. Brain Behavior, 8(9). doi:10.1002/brb3.1073
Feenaughty, L., Tjaden, K., Weinstock-Guttman, B., Benedict, R. H. B. (2018). Separate and Combined Influence of Cognitive Impairment and Dysarthria on Functional Communication in Multiple Sclerosis. American Journal of Speech Language Pathology, 27(3), 1051-1065. doi: 10.1044/2018_AJSLP-17-0174
Tjaden, K., & Martel-Sauvageau, V. (2017). Vocalic transitions as markers of speech acoustic changes with STN-DBS in Parkinson’s Disease. Journal of Communication Disorders, 70, 1-11. doi: 10.1016/j.jcomdis.2017.10.001
Tjaden, K., & Martel-Sauvageau, V. (2017). Consonant Acoustics in Parkinson’s Disease and Multiple Sclerosis: Comparison of Clear and Loud Speaking Conditions. American Journal of Speech Language Pathology, 26, 569-582. doi:10.1044/2017_AJSLP-16-0090
Kuo, C., Tjaden, K. (2016). Acoustic variation during passage reading for speakers with dysarthria and healthy controls. Journal of Communication Disorders, 62, 30-34. doi: 10.1016/j.jcomdis.2016.05.003.
Lam., J., & Tjaden, K. (2016). Clear speech variants: An acoustic study in Parkinson’s disease. Journal of Speech, Language, and Hearing Research, 59. 631-646. doi: 10.1044/2015_JSLHR-S-15-0216.
Stipancic, K. L., Tjaden, K., & Wilding, G. (2015). Comparison of Intelligibility Measures for Adults with Parkinson’s Disease, Multiple Sclerosis and Healthy Controls. Journal of Speech, Language, and Hearing Research,59. 230-238. doi: 10.1044/2015_jslhr-s-15-0271.
Kuo, C., Tjaden, K., & Sussman, J. E. (2014). Acoustic and perceptual correlates of faster-than-habitual speech produced by speakers with Parkinson’s disease and Multiple Sclerosis. Journal of Communication Disorders, 52, 156–169. doi: 10.1016/j.jcomdis.2014.09.00
Feenaughty, L., Tjaden, K., & Sussman, J. (2014). Relationship between acoustic measures and judgments of intelligibility in Parkinson’s disease: A within – speaker approach. Clinical Linguistics and Phonetics, 28(11). 857- 878. doi: 10.3109/02699206.2014.921839
Tjaden, K., Kain, A., & Lam, J. (2014). Hybridizing Conversational and Clear Speech to Investigate the Source of Increased Intelligibility in Parkinson’s Disease. Journal of Speech, Language and Hearing Research, 57, 1191-1205. doi:10.1044/2014_JSLHR-S-13-0086
Tjaden, K., Sussman, J. E., & Wilding, G. E. (2014). Impact of Clear, Loud, and Slow Speech on Scaled Intelligibility and Speech Severity in Parkinson’s Disease and Multiple Sclerosis. Journal of Speech, Language, and Hearing Research, 57(3), 779–792. doi:10.1044/2014_JSLHR-S-12-0372
Lam, J., & Tjaden, K. (2013). Acoustic-Perceptual Relationships in Variants of Clear Speech. Folia Phoniatrica et Logopaedica, 65(3), 148–153. doi: 10.1159/000355560
Lam, J., & Tjaden, K. (2013). Intelligibility of Clear Speech: Effect of Instruction. Journal of Speech Language Hearing Research, 56(5), 1429-1440. doi: 10.1044/1092-4388(2013/12-0335.
Tjaden, K., Richards, E., Kuo, C., Wilding, G., & Sussman, J. (2013). Acoustic and Perceptual Consequences of Clear and Loud Speech. Folia Phoniatrica et Logopaedica, 65(4), 214–220. doi: 10.1159/000355867
Tjaden, K., Lam, J., & Wilding, G. (2013). Vowel Acoustics in Parkinson’s Disease and Multiple Sclerosis: Comparison of Clear, Loud, and Slow Speaking Conditions. Journal of Speech Language Hearing Reseach, 56(5), 1485-1502. doi: 10.1044/1092-4388(2013/12-0259).
Feenaughty, L. Tjaden, K., Benedict, R., & Weinstock-Guttman, B., & Benedict, R. (2013). Speech and pause characteristics in Multiple Sclerosis: Comparison of speakers with high and low neuropsychological test performance. Clinical Linguistics and Phonetics, 27, 134-151.
Lam, J., Tjaden, K., & Wilding, G. (2012). Acoustics of Clear Speech: Effect of Instruction. Journal of Speech Language Hearing Research, 55, 1807-1821. doi: 10.1044/1092-4388(2012/11-0154)
Sussman, J. E., & Tjaden, K. (2012). Perceptual Measures of Speech From Individuals With Parkinson’s Disease and Multiple Sclerosis: Intelligibility and Beyond. Journal of Speech, Language, and Hearing Research, 55(4), 1208–1219. doi: 10.1044/1092-4388(2011/11-0048.
Rodgers, J. D., Tjaden, K., Feenaughty, L., Weinstock-Guttman, B., & Benedict, R. H. B. (2013). Influence of Cognitive Function on Speech and Articulation Rate in Multiple Sclerosis. Journal of the International Neuropsychological Society, 19(2), 173–180. doi:10.1017/S1355617712001166
Tjaden, K. & Wilding, G. (2011). Speech and pause characteristics associated with rate reduction in Parkinson’s disease and Multiple Sclerosis. Journal of Communication Disorders, 44, 655-665. doi: 10.1016/j.jcomdis.2011.06.003
Tjaden, K. & Wilding, G. (2011). Effects of speaking task on intelligibility in Parkinson’s disease. Clinical Linguistics and Phonetics. 25(2), 155–168. doi: 10.3109/02699206.2010.520185
Tjaden, K. & Wilding, G. (2011). The Impact of Rate Reduction and Increased Loudness on Fundamental Frequency Characteristics in Dysarthria. Folia Phoniatrica et Logopaedica, 63(4), 178-186.
Tjaden, K., Sussman, J., Liu, G., & Wilding, G. (2010). Long Term Average Spectral Measures of Dysarthria and their Relationship to Perceived Severity. Journal of Medical Speech-Language Pathology, 18, 1.
Tjaden, K. (2008). Speech and Swallowing in Parkinson’s disease. Topics in Geriatric Rehabilitation, 24, 115-126.
D’Innocenzo, J., Tjaden, K., & Greenman, G. (2006). Intelligibility in Dysarthria: Effect of Listener Familiarity and Speaking Condition. Clinical Linguistics and Phonetics, 20, 659-675.
Tjaden, K., & Sussman, J. (2006). Perception of Coarticulatory Cues in Normal Speech and Dysarthria. Journal of Speech, Language, and Hearing Research, 49, 888-902.
Tjaden, K., Rivera, D., Wilding, G.E., & Turner, G. (2005). Characteristics of the Lax Vowel Space in Dysarthria. Journal of Speech, Language, and Hearing Research, 48, 554-566.
Tjaden, K., & Wilding, G.E. (2005). Effect of Rate Reduction and Increased Loudness on Acoustic Measures of Anticipatory Coarticulation in Multiple Sclerosis and Parkinson Disease. Journal of Speech, Language, and Hearing Research, 48, 261-277.
Tjaden, K., & Wilding, G.E. (2004). Rate and loudness manipulations in dysarthria: acoustic and perceptual findings. Journal of Speech, Language, and Hearing Research, 47, 766-783.
Tjaden, K. (2003). Anticipatory Coarticulation in Multiple Sclerosis and Parkinson disease. Journal of Speech, Language, and Hearing Research, 46, 990-1008.
Tjaden, K., & Watling, E. (2003). Characteristics of Diadochokinesis in Multiple Sclerosis and Parkinson Disease. Folia Phoniatrica Logopaedica, 55, 241-259.
McRae, P.A., Tjaden, K. & Schoonings, B. (2002). Acoustic and Perceptual Consequences of Articulatory Rate Change in Parkinson Disease. Journal of Speech, Language, and Hearing Research, 45, 35-50.