Research

Research Areas

Hearing Research

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Carlos Benítez-Barrera, Ph.D. | Pediatric Auditory Experience and Brain Laboratory

Carlos Benítez-Barrera, Ph.D.
Carlos Benítez-Barrera, Ph.D.

Dr. Benitez-Barrera’s research focuses on the impact of early auditory experiences on behavioral and neural outcomes of children, particularly those at risk of communication delays. Dr. Benitez-Barrera is also interested in investigating neural correlates of speech-in-noise processing in the pediatric population. His research takes place at the Waisman Center, where he directs the Pediatric Auditory Experience and Brain lab.

Nike Gnanateja, Ph.D. | Speech Processing and Auditory Neuroscience Laboratory

Nike Gnanateja, Ph.D.
Nike Gnanateja, Ph.D.

Dr. Gnanateja’s research investigates the neurophysiological processing of naturalistic speech with an eye towards developing ecologically valid objective tools to inform communication benefit from hearing rehabilitation strategies. His research uses a systems neuroscience approach employing multimodal neurophysiological approaches integrated with psychoacoustic tasks and naturalistic speech stimuli. The goal of this lab is to develop neurophysiologically-informed, generalizable, and easy-to-use objective metrics of speech processing that can be seamlessly employed with hearing rehabilitative options such as hearing aids, cochlear implants, or auditory learning.

Erik Jorgensen, Au.D., Ph.D. | Soundscape and Audiology Research Laboratory

Erik Jorgensen, Au.D, Ph.D.
Erik Jorgensen, Au.D, Ph.D.

Dr. Jorgensen’s research is broadly in measuring and improving audiologic intervention outcomes in daily life for people with hearing loss. His work combines virtual sound environments in the lab and data collection in the real-world to understand how hearing loss, audiologic interventions, and auditory environments interact. Much of his research focuses specifically on hearing aid technologies and older adults with hearing loss

Ruth Litovsky, Ph.D. | Binaural Hearing & Speech Laboratory

Ruth Litovsky, Ph.D.
Ruth Litovsky, Ph.D.

Ruth Litovsky’s research studies binaural hearing in persons who have normal hearing and in persons who are deaf and use cochlear implants (CIs). Her team is interested in whether CI users can benefit from having two (bilateral) CIs and whether, for children, having bilateral CIs at a young age offers unique advantages.

Language Research

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Rebecca Alper, Ph.D., CCC-SLP | Language, Literacy, and Learning Laboratory

Rebecca Alper, Ph.D., CCC-SLP
Rebecca Alper, Ph.D., CCC-SLP

Haley Dresang, Ph.D. | Neuroscience of Language & Neurological Disorders (NeuroLAND) Laboratory

Haley Dresang, Ph.D.
Haley Dresang, Ph.D.

Dr. Dresang’s research focuses on neural mechanisms of language and conditions that disrupt language, such as aphasia. Her work examines how the brain compensates to support communication following stroke, brain injury, and neurodegeneration.

Susan Ellis Weismer, Ph.D., CCC-SLP | Language Processes Laboratory

Susan Ellis Weismer, Ph.D., CCC-SLP
Susan Ellis Weismer, Ph.D., CCC-SLP

Susan Ellis Weismer’s research investigates the developmental course and nature of language processing in atypical language learners compared to those with typical language development. Her work focuses on late talkers, children with specific language impairment (SLI), and young children with autism spectrum disorders (ASD).

Susan Ellis Weismer, Ph.D., CCC-SLP | Little Listeners Laboratory

Jenny Saffran, Ph.D.
Jenny Saffran, Ph.D.
Susan Ellis Weismer, Ph.D., CCC-SLP
Susan Ellis Weismer, Ph.D., CCC-SLP

With principal investigators Susan Ellis Weismer, Jan Edwards, and Jenny Saffran, learning language is one of the most fascinating things children do during their early years. From day one, children are Little Listeners who use the words they hear from family and friends to help them accomplish the amazing task of learning language. Even though most children pick up language with relative ease, some kids, including those with autism spectrum disorders (ASD), struggle to understand and develop language. The goal of the Little Listeners Project is to better understand why some children with ASD have such a difficult time learning language, and what we might be able to do to help.

Margarita Kaushanskaya, Ph.D. | Language Acquisition & Bilingualism Laboratory

Margarita Kaushanskaya, Ph.D.
Margarita Kaushanskaya, Ph.D.

Margarita Kaushanskaya’s research aims to improve diagnostic practices for children who speak English as a second language, and who therefore cannot be tested using tools developed for monolingual English-speaking children. Because early diagnosis of a language difficulty is key to successful intervention and to the child’s ultimate quality of life, identifying ways to accurately index bilingual children’s development can make a significant contribution to public health.

Kimberly Mueller, Ph.D., CCC-SLP | Cognitive-Communication in Aging and Neurogenic Disorders Laboratory

Kimberly Mueller, Ph.D., CCC-SLP
Kimberly Mueller, Ph.D., CCC-SLP

Dr. Mueller’s research focuses on neural mechanisms of speech/language in individuals with normal aging, preclinical Alzheimer’s disease, Alzheimer’s Disease, Mild Cognitive Impairment (MCI), and other forms of dementia. Her work explores naturalistic speech-language samples as a means of gaining insight from subtle changes to communication in the context of aging and neurodegenerative diseases. Dr. Mueller is also interested in testing of identification methods of early cognitive change in the presence of AD biomarkers, and creation of multimodal therapeutic interventions to address cognitive-communication difficulties in MCI and dementia due to neurodegenerative disease.

Audra Sterling, Ph.D. | Research in Neurodevelopmental Disabilities Laboratory

Audra Sterling, Ph.D.
Audra Sterling, Ph.D.

Dr. Sterling’s research focuses on the development of language and cognitive skills in children and adults with neurodevelopmental disabilities. Through her work she hope to inform both clinical work and theory on issues surrounding assessment and treatment of language, the impact of additional diagnoses on language and behavior, and overlap between syndromes. She works with families who have children with fragile X syndrome, autism spectrum disorders, and Down syndrome.

Speech Research

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Katie Hustad, Ph.D., CCC-SLP | Wisconsin Intelligibility, Speech, and Communication Laboratory

Katie Hustad, Ph.D., CCC-SLP
Katie Hustad, Ph.D., CCC-SLP

Dr. Hustad’s research studies the changes in speech language, cognition, and functional communication abilities among children with cerebral palsy (CP). By better understanding the different profiles of communication development among children with CP—and the stability of these profiles over time—Dr. Hustad will then work to develop interventions to improve communication outcomes, quality of life, and social participation for children with CP.

Benjamin Parrell, Ph.D. | Speech Motor Action + Control Laboratory

Benjamin Parrell, Ph.D.
Benjamin Parrell, Ph.D.

Dr. Parrell’s research focuses on how the brain controls and produces the articulatory movements that create speech. This research incorporates speech behavior, neuroscience, and computational modelling to understand how speech motor control works in healthy speakers as well as speakers with neurological disorders, such as cerebellar ataxia. Students interested in working in the lab can apply online.

Caroline Niziolek, Ph.D. | Brain, Language, & Acoustic Behavior Laboratory

Swallowing and Voice Research

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Michelle Ciucci, Ph.D., CCC-SLP | Ciucci Laboratory

Michelle Ciucci, Ph.D., CCC-SLP
Michelle Ciucci, Ph.D., CCC-SLP

Michelle Ciucci’s research focuses on the neurobiological and behavioral underpinnings of motor control for voice and swallowing. Using clinical and basic science models, she explores how degenerative neurologic diseases, such as Parkinson Disease, affect these functions. This work may lead to new interventions to relieve the symptoms of PD, and potentially modify the progression of the disease.

Nadine Connor, Ph.D., CCC-SLP | Connor Laboratory

Nadine Connor, Ph.D., CCC-SLP
Nadine Connor, Ph.D., CCC-SLP

Nadine Connor’s research focuses on the role of aging, and on treatments such as exercise, in reversing or preventing age-related changes in cranial muscles. Real-world benefit comes from better knowledge of how currently used treatments may affect swallowing and voice disorder outcomes.

Nicole Rogus-Pulia, Ph.D., CCC-SLP | Swallowing and Salivary Bioscience Laboratory

Nicole Rogus-Pulia, Ph.D., CCC-SLP
Nicole Rogus-Pulia, Ph.D., CCC-SLP

Dr. Nicole Rogus-Pulia leads a research program focused on dysphagia, or swallowing dysfunction, in patients with Alzheimer’s disease (AD). The goal of Dr. Rogus-Pulia’s work is to systematically identify and characterize factors underlying dysphagia in patients with AD and to translate these findings into treatments for maintaining quality of life and prevention of pneumonia onset for both veterans and the general population.

Susan Thibeault, Ph.D., CCC-SLP | Thibeault Research Group

Susan Thibeault, Ph.D., CCC-SLP
Susan Thibeault, Ph.D., CCC-SLP

Dr. Thibeault’s translational research investigates molecular and genetic factors that are the basis of normal vocal fold tissue and its vibration. Dr. Thibeault studies vocal fold injury and wound healing as a disordered model. Specifically, Dr. Thibeault’s lab has two main areas of study — tissue engineering of the vocal fold lamina propria and laryngeal immunology. The lab has developed unique primary and immortalized human cell lines, in addition to vibrational bioreactors to aid in the research pursuit.

Participate in Research Studies

The Department has many active laboratories for training and research in speech, language, and hearing science as well as communication disorders. Contact the labs above to learn more.

Students performing sensory research.