Recent Publications & Presentations
Below are details related to select publications and presentations created by members of the MSDLab
Bilingual perception of dysarthric speech
Dr. Tetzloff, Dr. Fletcher, Dr. Lansford, Tyson Barrett, and Dr. Stephanie Borrie investigated whether the factors of bilingualism, working memory, and vocabulary knowledge were associated with greater gains in perceptual learning of dysarthric speech. This study was published in 2025 in the Journal of Speech, Language, and Hearing Research.
Cognitive predictors of perception and adaption to dysarthric speech in older adults
While older adults are often communication partners for individuals with dysarthria, they may face challenges in understanding dysarthric speech due to factors like age-related hearing loss. This paper by Dr. Kaitlin Lansford, Dr. Micah Hirsch, Tyson Barrett, and Dr. Stephanie Borrie examines the hearing, cognitive, and speaker factor that may contribute to perceptual learning of dysarthric speech for older listeners. Click below to read this 2025 study published in the Journal of Speech, Language, and Hearing Research.
Increasing motivation increases intelligibility benefits of perceptual training of dysarthric speech
Perceptual training to improve understanding of dysarthric speech requires listeners to effortfully listen, a task that can be difficult requiring cognitive resources. In this paper, Dr. Stephanie Borrie, Dr. Katerine Tetzloff, Tyson Barret, and Dr. Kaitlin Lansford investigated the effects of motivation on perceptual learning of dysarthric speech. This study was published in 2024 in the American Journal of Speech-Language Pathology.
Perceptual learning of dysarthria in adolescence
Much of the research on perceptual learning of dysarthric speech focuses on adult speakers with dysarthria and adult listeners. This study by Dr. Stephanie Borrie, Taylor Hepworth, Dr/ Camille Wynn, Tyson Barrett, Dr. Katherine Hustad, and Dr. Kaitlin Lansford investigated whether adolescent listeners of a 13-year-old speaker with spastic dysarthria due cerebral palsy experienced intelligibility gains from perceptual training. This research was published in 2023 in the Journal of Speech, Language and Hearing Research.
Vowel acoustics as predictors of speech intelligibility in dysarthria
Drs. Austin Thompson, Micah Hirsch, Kaitlin Lansford, and Kim Yunjung investigated relationships between traditional and alternative acoustics measures, speech intelligibility, and speech intelligibility measures in speakers with dysarthria. This study was published in 2023 in the Journal of Speech, Language and Hearing Research.
Cognitive predictors of perception and adaptation to dysarthric speech in young adult listeners
This study by Dr. Kaitlin Lansford, Tyson Barrett, and Dr. Stephanie Borrie investigated relationships between cognition and perceptual learning of dysarthric speech in young adult listeners. This study was published in 2023 in the Journal of Speech, Language, and Hearing Research.
Perceptual subgroups in speakers with ataxic dysarthria: An auditory free-classification approach
​Dr. Kristie Spencer, Jessica Amaral, and Dr. Kaitlin Lansford published Jessia's Master's thesis, which investigated how naive listeners perceptually categorize speakers with ataxic dysarthria. This study was published in the American Journal of Speech Language Pathology in 2023.
The reliability and validity of speech-language pathologists’ estimations of intelligibility in dysarthria
Drs. Micah Hirsch, Austin Thompson, Yunjung Kim, and Kaitlin Lansford investigated the validity and reliability of speech-language pathologists' estimations of dysarthric speech intelligibility via visual analog scales and percent correct methodology. This study was published in 2022 in Brain Sciences.
A clinical advantage: Experience informs recognition and adaptation to a novel talker with dysarthria
Dr. Stephanie Borrie, Dr. Kaitlin Lansford, and Tyson Barrett investigated relationships between clinical experience and perceptual learning of dysarthric speech in a sample of speech-language pathologists and unfamiliar listeners. This study was published in the Journal of Speech, Language and Hearing Research in 2021.