Lecturer in American Sign Language

Dr. Rogers joined the faculty fall of 2002. He teaches the American Sign Language courses offered in the department. Dr. Rogers received his B.A. from Tennessee Temple University and masters degree from Dallas Theological Seminary. He is earned a Ph.D. in linguistics from the University of Texas at Arlington. He is a state and nationally certified sign language interpreter. Dr. Rogers’ interests are the comparative linguistics of the sign languages of North American and third-world countries.

Lecturer and Clinical Supervisor

Shannon Presley received her M.S. in speech-language pathology from the University of North Texas. She has worked as a speech clinical supervisor at the University of North Texas since January of 2005. Prior to working at the UNT clinic, Mrs. Presley worked in a day neuro program for brain injured adults.

At the UNT Speech and Hearing Clinic, her clientele includes both school aged children and adults. In addition, Mrs. Presley coordinates group programs for adults with brain injuries as well as users of Augmentative and Alternative Communication. She also is a member of a team assessment with the Child and Family Resource Clinic for school age children and completes voice evaluations with a faculty member. Specific areas of interest include: Adult neurogenic communication disorders, Voice disorders, Augmentative and Alternative Communication (AAC), and Dyslexia. In addition to supervising graduate students in the clinic, Mrs. Presley teaches a graduate clinic course as well as an undergraduate introductory course in the major.

Last, she has presented at the Texas Speech Language Hearing Association Conference with faculty as well as graduate students on areas of narrative skills, AAC, and dyslexia.

Associate Professor and Director of Graduate Studies in Speech-Language Pathology

Dr. Olness’ research examines the discourse production abilities of adults with acquired neurogenic communication disorders, such as stroke-induced aphasia. Normal pre-morbid discourse variation is incorporated into her approach (ethnic discourse styles of African Americans and Euro-Americans, formality, spontaneity, age/cohort effects, etc.). Her interests focus on the relationship between linguistic and paralinguistic forms and their communicative function-- for example, language forms used to express emotion, opinion, and attitude--and their neurological underpinnings. These combined areas of inquiry are applied to the design of clinical discourse assessment and assessment of functional communication. In addition, her research with disordered populations sheds light on the cognitive-linguistic and neurological substrates of “normal” discourse production in non-brain-injured populations.

Prior to joining the UNT SPHS faculty in 2006, Olness worked as a federally funded (NIH) Research Scientist at the University of Texas at Dallas (UTD) Callier Center. Olness received her doctoral and post-doctoral training at UTD (Human Development and Communication Sciences), under the mentorship of Dr. Hanna Ulatowska. Earlier degrees were in Linguistics (M.A., U. of Oregon), and Communicative Disorders (M.S., U. of Wisconsin--Madison). Olness began her career as a B.A. double major in French and Speech & Hearing Sciences (Indiana U., - Bloomington) under the mentorship of Dr. Judith Johnston.

Publications authored and co-authored by Olness have appeared in Aphasiology, Brain and Language, Discourse Processes, the Journal of Neurolinguistics, the Journal of Speech and Hearing Research, and Advances in Speech-Language Pathology, inter alia.

Olness’ clinical training in adult neurogenic communication disorders includes a graduate internship at the Middleton V.A. Hospital (Madison, WI) under Dr. John (Jay) Rosenbek, and a Clinical Fellowship at the Rehabilitation Institute of Chicago. She continued her clinical work as a staff speech-language pathologist in a non-profit clinic in Eugene, Oregon. Her current clinical research program involves on-going contact with and advocacy for individuals who have aphasia.

More information about Dr. Olness:

Lecturer and Clinical Supervisor

Stacy Nunnelee received her bachelor's degree in pre-professional speech-language pathology from Louisiana Tech University and her master's degree in speech-language pathology from The University of Memphis. Mrs. Nunnelee completed her CFY here in the Dallas area and has worked in the field for approximately 16 years before joining UNT as a clinical supervisor in the Fall of 2008. Most of her experience has been with neurogenic disorders such as traumatic brain injury. Her clinical experiences have involved most settings that include outpatient rehab clinics, acute care hospitals, rehab/outpatient hospitals, a private school for children with learning disorders, and teaching at a university. Mrs. Nunnelee has presented on children's learning styles, dysphasia carry-over techniques/training following discharge from a hospital, and various topics of traumatic brain injury that include teaching strategies for carry-over into home settings, memory, and attention. 

Lecturer and Director of Undergraduate Studies

Mrs. Mathews joined UNT in 2005 after numerous years in speech-language pathology practice and administration. Mrs. Mathews received her B.S. degree in Speech-Language Pathology at Texas Christian University and her M.S. degree in Speech-Language Pathology at the University of Texas at Dallas. Mrs. Mathews' areas of interest include pediatric language and feeding disorders and children and adults with Autism Spectrum Disorder. Mrs. Mathews has a varied work experience, which includes inpatient and outpatient rehabilitation, schools and home health experience. Mrs. Mathews has supervised graduate students and Speech-Language Pathologists completing their Clinical Fellowship year in various medical settings. She currently teaches undergraduate and graduate courses and supervises in the UNT Speech and Hearing Clinic. She is also the SPHS Undergraduate Advisor and Director of Undergraduate Studies.

Lecturer and Clinical Supervisor

Dr. Amanda Labue received a Bachelor of Arts in Speech Language Pathology from Louisiana Tech University in 2001 and a Doctor of Audiology from the University of Texas at Dallas in 2005.  After graduation she worked as an audiologist at the Callier Center for Communication Disorders in Dallas where she served as coordinator of the Assistive Devices Center and was a faculty associate in the audiology clinic.  In 2014, she joined the University of North Texas in the Speech and Hearing Services department as a lecturer and clinical supervisor.   In addition to classroom instruction and instruction during clinical rotations of doctoral level students, she also coordinates off-site clinical rotations for advanced students. 

Her audiological interests include assessment, hearing aids, and aural rehabilitation for both adult and pediatric populations.

Professor and Director of Graduate Studies in Audiology

Dr. Gopal received her B.S. and M.S. in Speech and Hearing Sciences from the All India Institute of Speech and Hearing, Mysore, India. She received her Ph.D. in audiology from Michigan State University in 1992. Dr. Gopal’s research interests are internal neuronal network dynamics of cultured auditory cortical neurons, effects of heavy metals and neurotoxins on cultured cortical neurons, auditory evoked potentials in children at risk for central auditory processing disorders and auditory processing in subjects on SSRI medication.

Associate Professor

Dr. Cokely joined the faculty in the fall of 2000 after nearly fifteen years of university teaching. He completed his undergraduate studies at Syracuse University and earned his master’s and doctorate degrees at Northwestern University. Dr. Cokely began his research career in the area of psychoacoustics, but for the past twelve years his energies have been directed toward the study of speech materials used to evaluate the hearing of Spanish-speaking listeners. His pioneering efforts in this area have resulted in publication, presentation, and several masters theses.

Associate Professor
+1 (940) 369-7340


Katsura Aoyama, Ph.D., is an Associate Professor on the faculty of the Department of Speech and Hearing Sciences, University of North Texas, where she has held an academic appointment since August 2012. She has also held an appointment of Associate Professor at the Texas Tech University Health Sciences Center from August 2009 to July 2012, and an appointment of Assistant Professor at the same institution from August 2002 to August 2009. Dr. Aoyama holds the B.A. degree in Japanese Philology from Kansai University, the M.A. degree in Linguistics from University of Hawai'i at Manoa, and the Ph.D. degree in Linguistics from University of Hawai'i at Manoa.

Dr. Aoyama has authored and co-authored many peer-reviewed publications. Her research interests include phonological acquisition in typically-developing children, second language acquisition, and prosody of language.  Her particular research interest is studying prosodic and phonological characteristics of different languages and how children acquire those characteristics. 

Dr. Aoyama's Curriculum Vitae (CV)

Dr. Aoyama's Papers

Dr. Aoyama's Links

Dr. Aoyama's Page

Associate Professor

Dr. Amlani was the recipient of a Pre-doctoral Fellowship through the National Institutes of Health-National Institute on Deafness and Other Communication Disorders (NIH-NIDCD). He is also a member of several professional organizations, and has authored and co-authored papers related to hearing aids in the American Journal of Audiology, Audiology Today, Journal of the American Academy of Audiology, Journal of Speech-Language-Hearing Research, Trends in Amplification, The Hearing Journal, and Hearing Review. His research interests include hearing aid fitting and selection procedures, auditory perception in real-world environments, predicting speech-intelligibility performance from the electroacoustic characteristics of hearing aids, and economic and marketing trends within the hearing aid industry.