Research Interest

My broad research goal is to examine and expand the foundational science and principles of speech production as well as the subsequent clinical applications for speakers with dysarthria. My research is focused on speech production to examine and develop strategies and procedures for the clinical management of dysarthria.

Specific Interests:

• Relationship among articulatory kinematics, speech acoustics, and speech intelligibility
• Identification of comprehensive production variables that predict speech intelligibility in individuals with dysarthria
• Investigating how to enhance speech production in individuals with dysarthria secondary to various neurological conditions such as amyotrophic lateral sclerosis and cerebral palsy. 

Publications: 

Lee, J. & *Fischer, J. (in press). Single word-based acoustic vowel space in individuals with dysarthria secondary to amyotrophic lateral sclerosis. Perspectives of ASHA Special Interest Group 19 (Speech Science). Invited peer-reviewed paper.

Lee, J., *Dickey, E., & Simmons, Z. (2019). Vowel-specific intelligibility and acoustic patterns in individuals with dysarthria secondary to ALS. Journal of Speech, Language, and Hearing Research, 62, 34-59.

Lee, J., *Bell, M., & Simmons, Z. (2018). Articulatory kinematic characteristics across the dysarthria severity spectrum in individuals with ALS. American Journal of Speech-Language Pathology, 27, 258-269.  doi: 10.1044/2017_AJSLP-16-0230 

Lee, J., *Littlejohn, M., & Simmons, Z. (2017). Acoustic and tongue kinematic vowel space in speakers with and without dysarthria. International Journal of Speech-Language Pathology, 19, 195-204. 

Lee, J., *Pond, A., & *Sincavage, J. (2016). Tongue and lower lip movement for the semivowel /w/ production.  Folia Phoniatrica et Logopaedica. 68, 46-51. doi:10.1159/000446702 

Lee, J., Shaiman, S., & Weismer, G. (2016). Relationship between tongue positions and formant frequencies in female speakers. Journal of the Acoustical Society of America, 139(1), 426-440.

Lee, J., Hustad, K. C., & Weismer, G. (2014). Predicting speech intelligibility with a multiple speech subsystems approach in children with cerebral palsy. Journal of Speech, Language, and Hearing Research,57, 1666-1678. 

Lee, J., & Hustad, K. C. (2013). A preliminary investigation of longitudinal changes in speech production over 18 months in young children with cerebral palsy. Folia Phoniatrica et Logopaedica, 65(1), 32-39. 

Hustad, K. C., Gorton, K., & Lee, J. (2010). Classification of speech and language profiles in 4-year-old children with cerebral palsy: A prospective preliminary study. Journal of Speech, Language, and Hearing Research, 53, 1496-1513. 

Hustad, K. C. & Lee, J. (2008). Changes in speech production associated with alphabet supplementation. Journal of Speech, Language, and Hearing Research, 46, 462-474.