UI Communication Sciences and Disorders: personnel

Faculty
Abbas, Paul, Professor
Alipour, Fariborz Adjunct Professor
Bentler, Ruth Professor and Department Chair
Brown, Carolyn J. Professor
Bryant, Karen Clinical Assistant Professor
Cilek, Toni Clinical Associate Professor
Delsandro, Elizabeth Clinical Assistant Professor
Duff, Melissa Assistant Professor
Fennell, Ann Clinical Associate Professor
Finnegan, Eileen Associate Professor
Fleckenstein, Stephanie Clinical Assistant Professor
Gfeller, Kate Professor
Goodman, Shawn Assistant Professor
Gordon, Jean K. Associate Professor
Holte, Lenore Clinical Professor
Hurtig, Richard Professor
Karnell, Michael Associate Professor
Kelsay, Danielle Clinical Associate Professor
Kirk, Karen Professor
Klemuk, Sarah Adjunct Assistant Professor
Lemke, Alison Clinical Care Coordinator
Louko, Linda Clinic Director
McGregor, Karla Professor
McMurray, Bob Associate Professor
Moon, Jerald Professor
Niebuhr, Diane Clinical Associate Professor
Scheer-Cohen, Alison Visiting Instructor
Titze, Ingo Professor
Tomblin, J. Bruce Professor
Turner, Christopher Professor
Tyler, Richard Professor
Van Horne, Amanda Associate Professor
Wallace, Anne Clinical Associate Professor
Wu, Yu-Hsiang Assistant Professor
Zebrowski, Patricia Professor
Zubow, Lauren Clinical Supervisor

Professional / Scientific / Secretarial Staff
Albright, Dorothy Secretary
Arbisi-Kelm, Tim Research Assistant
Arenas, Rick Research Assistant
Berns, Amanda Research Assistant
Eden, Nichole Research Assistant
Eldridge, Lauren Project Assistant
Ferguson, Connie Speech-Language Pathologist
Fick, Wendy Research Assistant
Jennings, Vicki Secretary
Lehrman, Kelvin Network Administrator
Miller, Kathy Clerk
O'Brien, Marlea Program Associate
Ostrem, Julie Program Associate
Rebal, Kathy Administrative Specialist
St. Clair Marcia Field Examiner
Stangl, Elizabeth Research Assistant
Walker, Elizabeth Audiologist
Yotty, Mary Jo Secretary

Email: julie-ostrem@uiowa.edu
334-D Speech & Hearing Center
319 / 335-6602

Julie Ostrem's professional interests focus on the development of educational and service outreaches. Much of her work has been in the area of voice, although she wove the website for the Child Language Research Center and currently serves as the Department webmaster. She previously led a team in the creation of the Voice Academy, an NIDCD-funded website built for the vocal health of schoolteachers. She is currently working with Dr. Richard Hurtig on his Department of Education- funded project to assess the effectiveness of a reading comprehension intervention in the Chicago Public Schools.

Email: paul-abbas@uiowa.edu
122-B Speech & Hearing Center
319 / 335-8733

Joint appointment
Department of Otolaryngology-Head & Neck Surgery

Research interests
Paul Abbas's research interest focuses on auditory physiology with emphasis on electrical stimulation of the ear. Studies include the application of electrophysiological measures in cochlear implant users as well as basic research and modeling of the response properties of the auditory nervous system to electrical stimulation.

Auditory Physiology Laboratory

Related Web Sites
Neural Prosthesis Program Contract Progress Reports
NIH Neural Prosthesis Program

Selected publications
Abbas,, PJ & Brown, CJ (2009). Electrocochleography. In: Handbook of Clinical Audiology, 5th Ed. Katz & Burkard, Eds. Williams & Wilkins.

Abbas, PJ, Brown, CJ, & Etler, CP (2006). Electrophysiology and Device Telemetry In: Cochlear Implants, 2nd Ed. S. Waltzman & N Cohen, Eds. New York: Thieme Publ.

Hu, N, Miller, CA, Abbas, PJ, Robinson, BK, Woo, J (2010). Changes in auditory nerve responses across the duration of sinusioidally amplitude-modulated electric pulse-train stimuli. J Assoc Res Otolaryngol 11, 641-56.

Kim, JR, Abbas, PJ, Brown, CJ, Etler, CP, O'Brien, S, Kim, LS (2010). The Relationship between Electrically Evoked Compound Action Potential and Speech Perception : A Study in Cochlear Implant Users with Short Electrode Array. Otol Neurotol. 31, 1041-8.

He, S, Brown, CJ, Abbas, PJ (2010). Effects of Stimulation Level and Electrode Pairing on The Binaural Interaction Component of The Electrically Evoked Auditory Brain Stem Response. Ear and Hearing 31, 457-70..

iller, CA, Abbas, PJ, Robinson, BK, Nourski, KV, Zhang, F, Jeng, FC (2009). Auditory Nerve Fiber Responses to Combined Acoustic and Electric Stimulation. J Assoc Res Otol. 10, 425-45.

Email: alipour@iowa.uiowa.edu
334-E Speech & Hearing Center
319 / 335-8694

Fariborz Alipour received his formal training in mechanical engineering and has been working for more than 20 years investigating the human voice. His specific research interests include speech biomechanics, finite element modeling of vocal fold vibration, aerodynamics and acoustics of voice, and computer simulation of phonation.

Selected Publications
Alipour F and Scherer RC (2011). “Ventricular Pressures in Phonating Excised Larynges” J. Acoust. Soc. Am , in review.

Alipour F and Finnegan EM(2011). “Acoustic Effects of False Vocal Folds and Laryngeal Ventricles ” Journal of Speech, Language, and Hearing Research , in press.

Alipour F, Scherer RC, and Finnegan EM (2011). “Measures of Spectral Slopes Using Excised Larynx Model,” Journal of Voice , in press.

Tokuda I, and Zorner S. (2011). “Mathematical Models and Numerical Schemes for the Simulation of Human Phonation,” Current Bioinformatics , 6(3): 323-343.

Kunkel SD, Suneja M, Ebert SM, Bongers K, Fox DK, Malmberg SE, Alipour F, Shields RK, and Adams CM. (2011). “mRNA Expression Signatures of Human Skeletal Muscle Atrophy Identify a Natural Compound that Increases Muscle Mass,” Cell Metabolism, 13: 627–638.

Alipour F, Jaiswal S, and Vigmostad S (2011). “Vocal Fold Elasticity of Pig, sheep, and cow larynges” Journal of Voice, 25(2), 131-136.

Titze IR, FitchWT, Hunter EJ, Alipour F, Montequin D, Armstrong DL, McGee J & Walsh EJ. (2010) “Vocal power and pressure-flow relationship in excised tiger larynges,” Journal of Experimental Biology , 213, 3866-3873.

Alipour F, Finnegan EM, Scherer RC. (2009). “Aerodynamic and acoustic effects of abrupt frequency changes in excised larynges,” Journal of Speech, Language, and Hearing Research . 52, 465-481

Alipour F and Jaiswal S. (2009). “Glottal Airflow resistance in Excised Pig, sheep and cow larynges” Journal of Voice , 23(1), 40-50.

Finnegan EM and Alipour F. (2009). “Phonatory effects of supraglottic structures in excised canine larynges,” Journal of Voice , 23(1), 51-61

Email: lauren-zubow@uiowa.edu
127-A Speech & Hearing Center
319 / 335-8725

Research
Professional interests include AAC (Augmentative Alternative Communication) in acute care settings, eye-gaze technology, parent training and pediatric feeding

Email: bob-mcmurray@uiowa.edu
E218 Seashore Hall
319 / 335-0191

Joint Appointment
UI Department of Psychology

Research interests
On-line spoken word recognition and speech perception in typical adults and in people with language impairment and cochlear implants. The development of speech perception and word learning in infants and children. Use of eye tracking, cognitive neuroscience techniques (event related potentials and inter-cranial recording), and computational modeling of perception and perceptual development.

Member of the Delta Center

Representative Publications

Journal Articles
Apfelbaum, K., McMurray, B., & Hazeltine, E. (in press) Statistical learning in reading: Variability in irrelevant letters helps children learn phonics rules. Developmental Psychology .

McMurray, B., Horst, J., and Samuelson, L. (in press) Word learning emerges from the interaction of online referent selection and slow associative learning. Psychological Review

McMurray, B. & Jongman, A. (2011) What information is necessary for speech categorization? Harnessing variability in the speech signal by integrating cues computed relative to expectations. Psychological Review , 118(2), 219-246.

McMurray, B., Samelson, V., Lee, S., and Tomblin, J.B. (2010) Individual differences in online spoken word recognition: Implications for SLI. Cognitive Psychology , 60(1), 1-39.

Email: ruth-bentler@uiowa.edu
119-C Speech & Hearing Center
319 / 335-8723

Lab website
Hearing Aid Lab

Research interests
Hearing aid technology with emphasis in evaluation of device effectiveness and user satisfaction.

Publications
Stiles, D., Bentler, R., McGregor, K. (In Press, 2011). The Utility of the Speech Intelligibility Index and the Pure Tone Average as Predictors of Lexical Ability. Journal of Speech-Language-Hearing Research .

Stiles, D., McGregor, K. Bentler, R. (In Press, 2011). Journal of Speech-Language-Hearing Research. A study of working memory in children with hearing loss. . Journal of Speech-Language-Hearing Research .

Zhang, H., Liu, H., Bentler, R.A, Mo, L., Han, D., Zhang, L. (2011). Audiometric Records Analysis in a Clinical Population in Beijing, China. Journal of Otorhinolaryngology (ORL) 73:237-245.

Wu, Y. H. & Bentler, R. A. (2011) A method to measure hearing aid directivity index and polar pattern in small and reverberant enclosures, International Journal of Audiology 50(6):405-416.

Wu, Y. H. & Bentler, R. A. (2011). Clinical measures of direcivity: the assumption, accuracy, and relibility. Ear and Hearing 32(5):1-13.

Lewis, J., Goodman, S. Bentler, R. (2010). Measurement of hearing aid internal noise. Journal of the Acoustical Society of America 127(4):2521-2528.

Kiessling, J., Keidser, G., Bentler, R. (2010). A multi-site evaluation of a proposed test for verifying hearing aid maximum output. International Journal of Audiology . International Journal of Audiology 49(1):14-23.

Wu, Y-S., Bentler, R.A. (2010). Impact of Visual Cues on Directional Benefit and Preference: Part 2 – Field Tests. Ear and Hearing 31(1):22-34.

Wu, Y-S., Bentler, R.A. (2010). Impact of Visual Cues on Directional Benefit and Preference: Part 1 – Laboratory Tests. Ear and Hearing 31(1):35-46.

Wu, Y-S., Bentler, R.A. (2009 ). Using a signal cancellation technique involving impulse response to assess directivity of hearing . Journal of the Acoustical Society of America 126(6):3214-3226.

Bentler, R., Wu, Y-H., Kettel, J., Hurtig, R. (2008). Digital Noise Reduction: Outcomes from field and lab studies. International Journal of Audiology , 47(8): 447-460.

Email: carolyn-brown@uiowa.edu
127-A Speech & Hearing Center
319 / 335-8734

Research interests
Auditory physiology with emphasis in electrically evoked potentials and cochlear implants.

Publications
Abbas, P.J., Brown, C.J., Shallop, J.K., Firszt, J.B., Hughes, M.L., Hong, S.H., and Staller, S.J. (1999). Summary of results using the Nucleus CI24M implant to record the electrically evoked compound action potential (EAP). Ear and Hearing. 20 (1), 45-59.

Brown, C.J., Hughes, M., Lopez, S.M. and Abbas, P.J. (1999) The relationship between EABR thresholds and levels used to program the Clarion speech processor. Annals Otology, Rhinology, Laryngology. Suppl 177, 108, 50-57.

Brown, C.J., Abbas, P.J. and Gantz, B.J. (1998). Auditory Nerve Potentials Recorded Using the Neural Response Telemetry System of the Nucleus CI24M Cochlear Implant: Preliminary Data. American Journal of Otology.

Brown, C.J., Abbas, P.J., Borland, J., Bertschy, M. (1996) Electrically evoked whole nerve action potentials in Ineraid cochlear implant users and their relationship to psychophysical performance. Journal of Speech and Hearing Research, 39, 453-467.

Brown, C.J., Abbas, P.J., Bertschy, M., Tyler, R., Lowder, M., Takahashi, G., Purdy, S., and Gantz, B.J. (1995). Longitudinal Assessment of Physiological and Psychophysical Measures in Cochlear Implant Users. Ear and Hearing, 16, 1-11.

Brown, C.J., Abbas, P.J., Fryauf-Bertschy, H., Kelsay, D. and Gantz, B.J. (1994) Intraoperative and Postoperative Electrically Evoked Auditory Brainstem Responses (EABR) in Nucleus Cochlear Implant Users: Implications for the Fitting Process. Ear and Hear, 15, 168-176.

Gantz, B.J., Brown, C.J., and Abbas, P.J. (1994). Intraoperative measures of the electrically evoked auditory nerve compound action potential. American J. of Otology, 15, 137-144.

Email toni-cilek@uiowa.edu
122-D Speech & Hearing Center
319 / 335-8744

Toni Cilek's professional interests are in clincal instruction/supervision in all disorder areas, with special interest in fluency. She also teaches a course in remedial methods of speech and hearing disorders in the public schools.

Email: kay-gfeller@uiowa.edu
2040 Voxman Music Building
319 / 335-1657

Joint Appointment
UI School of Music

Professional Interests
Kate Gfeller is director of graduate studies in the Music Therapy area in the School of Music, and holds a secondary appointment in the Department of Speech Pathology and Audiology. Her research focuses on perception of and affective response to music, more specifically in persons with disabilities.

She is also a member of the Iowa Cochlear Implant Team at the University of Iowa Hospitals and Clinics, Department of Otolaryngology. As Principal Investigator for the Music Perception Project, she investigates musical perception and enjoyment by deafened adults who use cochlear implants. She has also been involved in applied research and clinical protocols for aural rehabilitation of children and adults who are deaf or hard of hearing and music therapy practices for adults with Alzheimer's Disease.

Email: ann-fennell@uiowa.edu
115 Speech & Hearing Center
319 / 335-8727

Ann Fennell is a clincal instructor/supervisor with specialty training in voice and voice disorders. She has considerable experience working with professional voice users, including broadcasters, teachers and singers. She also co-teaches the voice disorders course.

Email: eileen-finnegan@uiowa.edu
127-D Speech & Hearing Center
319 / 335-8717

Professional interests
Eileen Finnegan's research is in the area of laryngeal neurophysiology. More specifically, my interest is in studying the role of laryngeal/respiratory reflexes during phonation.

Publications
Bryant, K, Finnegan, EM , & Berbaum, K, (2011) VFS Inter-judge Reliability Using a Free & Directed Search, Dysphagia

Kochis-Jennings KA, Finnegan EM , Hoffman HT, & Jaiswal, S. (2011) Laryngeal Muscle Activity and Vocal Fold Adduction in Chest, Mixed and Head Registers in Females, Journal of Voice

Alipour F, Finnegan EM & Scherer, RC. (2009) Aerodynamic and acoustic effects of abrupt frequency changes in excised larynges. Journal of Speech, Language, and Hearing Research,52:465-481

Finnegan EM & Alipour F. (2009). Phonatory effects of supraglottic structures in excised canine larynges, Journal of Voice, 23(1), 51-61

Finnegan EM, Hoffman, HT, Hemmerich AL, Van Daele, DJ (2009) Clinical Practice: Spasmodic Dysphonia and Vocal Tremor, Perspectives on Voice and Voice Disorders, 66-73

Laukkanen AM Titze IR Hoffman HT Finnegan EM (2008) Effects of a Semi-Occluded Vocal Tract on Laryngeal Muscle Activity and Glottal Adduction in a single female subject. Folia Phoniatrica et Logopaedica 60(6):298-311

Titze IR, Finnegan EM , Laukkanen AM, Fuja M, & Hoffman HT (2008) Laryngeal Muscle Activity in Giggle: A Damped Oscillation Model, Journal of Voice , 22(6):644-8

Palmer PM, Jaffe, DM, McCulloch, TM, Finnegan, EM , Van Daele, DJ, Luschei, ES. (2008). Quantitative Contributions of the Muscles of the Tongue, Floor-of-mouth, Jaw and Velum to Intraoral Pressure Generation. Journal of Speech, Language, and Hearing Research, 51 828-835

Alipour F Jaiswal, S & Finnegan, EM , (2007) Aerodynamic and Acoustic Effects of False Folds and Epiglottis in Excised Larynx Models. Annals of Otology Rhinology & Laryngology, 116(2): 135-144.

Luschei ES, Ramig LO, Finnegan EM , Baker KL, & Smith ME (2006). Patterns of laryngeal EMG and the activity of the respiratory system during spontaneous laughter. Journal of Neurophysiology 96: 442–450.

Email: Stephanie-Fleckenstein@uiowa.edu
120-A Speech & Hearing Center
319 / 335-8755

Stephanie Fleckenstein's professional interests are hearing aids and aural rehabilitation with special interest in pediatric amplification.

Email: alison-scheer@uiowa.edu
Office: 127-A Speech & Hearing Center
Phone: 319-335-8725

Research Interests
My primary research interests include the speech of children with sensorimotor speech disorders, Specific Language Impairment (SLI), and craniofacial dysmorphologies, in addition to typical speech acquisition.

Publications
Shriberg, L.D., Fourakis, M., Hall, S.D., Karlsson, H.B., Lohmeier, H. L., McSweeny, J.L., Potter, N.L., Scheer-Cohen, A.R., Strand, E.A., Tilkens, C., & Wilson, D. (2010). Extensions to the Speech Disorders Classification System (SDCS). Clinical Linguistics and Phonetics, 24, 795-824.

Potter, N.L., Scheer-Cohen, A.R., Strand, E.A., Tilkens, C., & Wilson, D. (2010). Extensions to the Speech Disorders Classification System (SDCS). Clinical Linguistics and Phonetics, 24, 795-824.

Shriberg, L.D., Lewis, B.A., Tomblin, J.B., McSweeny, J.L., Karlsson, H.B., & Scheer, A.R. (2006). Toward diagnostic and phenotype markers for genetically transmitted speech delay. Journal of Speech, Language, and Hearing Research, 48, 834-852.

Karlsson, H.B., Shriberg, L.D., Scheer, A., & Nadler, C.J. (2003). Acoustic moments data for palatalized and dentalized sibilant productions from speech delayed children with and without histories of otitis media with effusion (Tech. Rep. No. 12). Phonology Project, Waisman Center , University of Wisconsin-Madison .

Shriberg, L.D., Green, J.R., Campbell , T.F., McSweeny, J.L., & Scheer, A.R. (2003). A diagnostic marker for childhood apraxia of speech: The coefficient of variation ratio. Clinical Linguistics and Phonetics, 17, 575-595.

Email: jean-k-gordon@uiowa.edu
125-B Speech & Hearing Center
319 / 335-8729

Research
My research focuses on the process of word retrieval in normal speakers, and in speakers with acquired neurogenic language disorders (particularly aphasia). I am interested in exploring the factors which make words easier or harder to retrieve, and how these factors influence the production of speech errors. To investigate these questions, I use a combination of behavioural experimentation and computational modeling approaches.

Member of the Delta Center

Selected Publications

Gordon, J.K. & Kindred, N.K. (2011). Word retrieval in aging: An exploration of the Task Constraint hypothesis. Aphasiology, 25(6/7), 774-788.

Gordon, J.K. (2008). Measuring the lexical semantics of picture description in aphasia, Aphasiology, 22(7/8), 839-852.

Gordon, J.K. (2007). A contextual approach to facilitating word retrieval in non-fluent aphasia, Aphasiology, 21(6/7/8), 643-657.

Email: melissa-duff@uiowa.edu
121-D Speech & Hearing Center
319-384-4702

Research
Melissa Duff's research interests include the cognitive processes and neural substrates supporting real-world learning, complex communication, and social interaction.

Member of the Delta Center
Selected publications
Duff, M.C., Gupta, R., Hengst, J., Tranel, D., & Cohen, N.J. (2011). The use of definite references signals declarative memory: Evidence from hippocampal amnesia. Psychological Science, 22(5), 666-673.

Duff, M.C., Hengst, J., Gupta, R., Tranel, D. & Cohen, N.J. (2011). Distributed impact of cognitive-communication impairment: Disruptions in the use of definite references when speaking to individuals with amnesia. Aphasiology, 25 (6-7), 675-687.

Kurczek, J., & Duff, M.C. (2011). Cohesion, coherence, and declarative memory: Discourse patterns of patients with hippocampal amnesia. Aphasiology, , 25 (6-7), 700-712.

Gupta, R., Duff, M.C., & Tranel, D. (2011). Bilateral amygdala damage impairs the acquisition and use of common ground in social interaction. Neuropsychology, 25(2), 137-146.

Feinstein, J.S., Duff, M.C., & Tranel, D. (2010). Evidence for the sustained experience of emotion beyond declarative memory. Proceedings of the National Academy of Science, 107 (17), 7674-7679.

Hengst, J.A., Duff, M.C., & Dettmer, A. (2010) Rethinking repetition in therapy: Repeated engagement as the social ground of learning. Aphasiology, 24, (6 -8), 887 – 901.

Duff, M. C. (2009, July 14). Management of sports-related concussion in children and adolescents. The ASHA Leader , 14(9), 10–13.

Duff, M.C ., Hengst, J., Tranel, D., & Cohen, N.J. (2009). Hippocampal amnesia disrupts verbal play and the creative use of language in social interaction. Aphasiology , 23 (7), 926-939.

Gupta, R., Duff, M.C., Denburg, N.L., Cohen, N.J., Bechara, A. & Tranel, D. (2009). Declarative memory is critical for sustained advantageous complex decision-making. Neuropsychologia, 47(7), 1686–1693.

Duff, M.C., Wszalek, T., Tranel, D., & Cohen, N.J. (2008). Successful life outcome and management of real-world memory demands despite profound anterograde amnesia. Journal of Clinical and Experimental Neuropsychology , 30 (8), 931-945.

Duff, M.C., Hengst, J., Tengshe, C., Krema, A. Tranel, D., & Cohen, N.J. (2008). Hippocampal amnesia disrupts the flexible use of procedural discourse in social interaction. Aphasiology , 22 (7, 8), 866-880 .

Duff, M.C., Hengst, J., Tranel, D., & Cohen, N.J. (2008). Collaborative discourse facilitates efficient communication and new semantic learning in amnesia. Brain and Language , 106 (1), 41-54.

Hengst, J., Duff, M.C., & Prior, P. (2008). Multiple voices in clinical discourse and as clinical intervention. International Journal of Language and Communication Disorders, 43, 58-68 .

Duff, M.C., Hengst, J., Tranel, D., & Cohen, N.J. (2007). Talking across time: Using reported speech as a communicative resource in amnesia. Aphasiology, 21 (6, 7, 8), 702-716.

Hengst, J. & Duff, M.C. (2007). Clinicians as communication partners: Developing a mediated discourse elicitation protocol. Topics in Language Disorders , 27, 36-47.

Duff, M.C., Hengst, J., Tranel, D., & Cohen, N.J. (2006). Development of shared information in communication despite hippocampal amnesia. Nature Neuroscience , 9 (1), 140-146.

Duff, M.C., Proctor, A., & Haley, K. (2002). Mild traumatic brain injury (TBI): Assessment and treatment procedures used by speech-language pathologists (SLPs). Brain Injury, 16 (9), 773-787.

Email: lenore-holte@uiowa.edu
148 Center for Disabilities & Development
319 / 356-1168

Research Interests
Lenore Holte's professional interests include the hearing assessment of children and adults with disabilities, immittance audiometry, and newborn hearing screening.

Publications
Holte, Walker, Oleson, Spratford, Moeller, Roush, Tomblin, and Ou. Factors Influencing Follow-up to Newborn Hearing Screening for Infants who are Hard-of-Hearing. Am J Audiol first published on May 14, 2012 as doi:10.1044/1059-0889(2012/12-0016)

Holte, Prickett, Van Dyke, Olson, Lubrica, Knutson, Knutson, and Brennan (2006). Issues in the management of infants and young children who are deaf-blind, Infants and Young Children, 19, 4, 323 - 322.

Holte, Prickett, Van Dyke, Olson, Lubrica, Knutson, Knutson, and Brennan (2006). Issues in the evaluation of infants and young children who are suspected of or who are deaf-blind, Infants and Young Children, 19, 3, 213 – 227.

Holte, L.A. (2003). Early childhood hearing loss: A frequently overlooked cause of speech and language delay, Pediatric Annals, June 2003.

Margolis, RH., Bass-Ringdahl, S., Hanks, W.D., Holte, L., and Zapala, D.A. (2003). Tympanometry in newborn infants - 1kHz Norms. Journal of the American Academy of Audiology, 14, 7, 383-392.

Downey, D., Mraz, R., Knott, J., Knutson, C., Holte, L., and Van Dyke, D. (2002). Diagnosis and evaluation of children who are not talking. Infants and Young Children, 15, 38-48.

Holte, L.A. and Margolis, R.H. (2002). Contemporary research in tympanometry, Current Opinion in Otolaryngology, October 2002.

Bentler, R., Holte, L.A., Turner, C.W. (1999). An update on the acclimatization issue, Hearing Journal, 52,44-46.

Holte, L. A. (1996). Aging effects in multifrequency tympanometry. Ear and Hearing, 17, 12-18.

Holte, L. A., Margolis, R.H., Cavanaugh, R.M. (1991). Developmental changes in multifrequency tympanograms. Audiology, 30,1-24.

Holte, L.A., Cavanaugh, R.M., and Margolis, R.H. (1990). Ear canal wall mobility and tympanometric shape in young infants. Journal of Pediatrics. 77-80.

Holte, L.A. and Margolis, R.H. (1987). Screening tympanometry. Seminars in Hearing, 8, 329-338.

Holte, L.A. and Margolis, R.H. (1987). The relative loudness of third-octave bands of speech. Journal of the Acoustical Society of America. 81, 186-190.

Turner, C.W. and Holte, L.A. (1987). Discrimination of spectral peaks by normal and hearing impaired subjects. Journal of the Acoustical Society of America, 81, 445-451.

Turner, C.W. , Holte, L.A., and Relkin, E. (1987) Auditory filtering and the discrimination of spectral shapes by normal and hearing impaired subjects. Journal of Rehabilitation Research and Development, Fall, 1987, 229-238.

Turner, C.W. and Holte, L.A. (1985). Evaluation of FM amplification systems. Hearing Instruments, 36, 7, 612.

Email: richard-hurtig@uiowa.edu
120-B Speech & Hearing Center
319 / 335-8730

Research
Richard Hurtig's broad research interest is uncovering general invariants of perceptual and cognitive processes involved in human communication.

Laboratory website

Class websites
003:117 Psychology of Language

003:218 Psycholinguistics

Inventions and Patents
Hurtig, R.R., & Turner, C. (2003). Apparatus and Methods for Proportional Audio Compression and Frequency Shifting. U.S. Patent # 6577739, The University of Iowa.

Hurtig, R.R., & Clark, B. (1987). Broadband spectral compression (for sensory aids and signal transmission system). The University of Iowa .

Selected publications
Mueller, V. & Hurtig, R. (2010) Technology-Enhanced Shared Reading with Deaf and Hard-of-Hearing Children: the Role of a Fluent Signing Narrator. Journal of Deaf Studies and Deaf Education , 15 (1): 72-101.

Hurtig, R. & Downey, D. (2009) Augmentative and Alternative Communication in Acute and Critical Care Settings . Plural Publishing Inc., San Diego, California

Bentler, R., Wu, Y-H., Kettel, J., Hurtig, R. (2008). Digital Noise Reduction: Outcomes from field and lab studies. International Journal of Audiology , 47(8): 447-460.

Shibata, T. & Hurtig, R.R. (2008) “Prosody Acquisition by Japanese Learners” in Understanding Second Language Process (SH Han Ed.) (Chapter 10). Multilingual Matters, Clevendon UK

Roch, Marie, Hurtig, RR, Huang, T, Liu, J, Arteaga, SM (2007) “Foreground auditory scene analysis for hearing aids” Pattern Recognition Letters , 28 (11) 1351-1359.

Peng, Shu-Chen, Tomblin JB, Spencer L, Hurtig R.R. “Imitative Production of Rising Speech Intonation in Pediatric Cochlear Implant Recipients” (2007) JSLHR, 50 (5),1210-1227.

Downey, D. & Hurtig, R. (2006). “Rethinking the use of AAC in Acute care Settings.” Perspectives on AAC , 15(4) (3-8).

Peng, Shu-Chen, Tomblin, J Bruce, Spencer, Linda J., Hurtig, Richard R. (2004). Acquisition of rising intonation in pediatric cochlear implant recipients – a longitudinal study. Elsevier, International Congress Series 1273 (336-339).

Email: timothy-arbisi-kelm@uiowa.edu
2 Speech & Hearing Center
319 / 353-5779

Research interests: Phonological and lexical development, prosody in language disorders, the relationship between intonation and articulation in disfluency production.

Email: michael-karnell@uiowa.edu
125-D Speech & Hearing Center
319 / 335-6629

Joint appointment
Department of Otolaryngology-Head & Neck Surgery

Related Websites
Department of Otolaryngology-Head & Neck Surgery
Michael Karnell's full CV
Otolaryngology Voice and Swallowing Research Center

Research interests
Normal and disordered laryngeal physiology and voice production, velopharyngeal physiology and resonance disorders with special interest in cleft palate and swallowing disorders.

Publications
Andrews BT, Van Daele DJ, Karnell MP , Mcculloch TM, Graham SM, Hoffman HT. (2008) Evaluation of open approach and injection laryngoplasty in revision thyroplasty procedures. Otolaryngology-Head and Neck Surgery, 138, 226-232.

Flores RL, Jones BL Berstein J, Karnell M , Canady, J, Cutting CB. (2010) Tensor veli palatini preservation, transection, and transection with tensor tenopexy during cleft palate repair and its effects on Eustachian tube function. Plastic and Recostructive Surgery, 125 (1), 282-289.

Conrad AL, Dailey S, Richman L, Canady J, Karnell MP , Axeson E, Nopoulos P. (2010) Cerebellum structure differences and relationship to speech in boys and girls with non-syndromic cleft of the lip and/or palate. American Cleft Palate-Craniofacial Journal, 47, 469-475.

Ames JA, Karnell LH, Gupta AK, Coleman TC, Karnell MP , Van Daele DJ, Funk, GF. (2010) Outcomes following the use of gastrostomy tubes in patients whose head and neck cancer was managed with radiation therapy. Head and Neck, ePub.

Shune SE, Karnell LH, Karnell MP, Van Daele DJ, Funk GF. (In Press) The association between severity of dysphagia and survival in patients with head and neck cancer. Head & Neck.

Books
Textbook Handbook of Cleft Palate Speech: A Clinician's Guide to Diagnosis and Therapy. Peterson-Falzone, S.J., Karnell, M.P., Hardin-Jones, M.A., Cardamone, J.E. Mosby, Due: 2004.

Textbook. Peterson-Falzone, S.J., Karnell, M.P., Hardin-Jones, M.A. Cleft Palate Speech. Mosby, 2001.

Textbook. Karnell, M.P. Videoendoscopy: From Velopharynx to Larynx. Singular Publishing Group, 1994.

Email: danielle-kelsay@uiowa.edu
113 Speech & Hearing Center
319 / 335-8754

Clinical/Research Interests
Hearing impairment, its impact on the pediatric population and provision of comprehensive aural (re)habilitation services to hearing impaired children and their families

Publications
Hughes, M.L., Vander Werff, K.R., Brown, C.J., Abbas, P.J., Kelsay, D.M.R., Teagle, H.F.B. & Lowder, M.W. (2001). A Longitudinal Study of Electrode Impedance, the Electrically Evoked Compound Action Potential, and Behavioral Measures in Nucleus 24 Cochlear Implant Users. Ear and Hearing, 22, 471-486.

Spencer, L.J., Tye-Murray, N., Kelsay, D.M.R., Teagle, H. (1998). Learning to use the cochlear implant: A child who beat the odds. American Journal of Audiology, 7, 1, 24-29.

Fryauf-Bertschy, H., Tyler, R.S., Kelsay, D.M.R., Gantz, B.J. & Woodworth, G.P. (1997). Cochlear implant use by prelingually deafened children: The influences of age at implant and length of device use. Journal of Speech and Hearing Research, 40, 183-199.

Kelsay, D.M.R. & Tyler, R. (1996). Advantages and Disadvantages Expected and Realized by Pediatric Cochlear Implant Recipients as Reported by Their Parents. American Journal of Otology, 17, 866-873.

Kelsay, D.M.R. & Tyler, R. (1996). Children and Cochlear Implants, in Hearing Care for Children, (Martin, F. & Clark, J., Eds.). Allyn & Bacon.

Tye-Murray, N., Witt, S., Schum, L., Kelsay, D., & Schum, D. (1994). Feasible Aural Rehabilitation Services for Busy Clinical Settings. American Journal of Audiology, 3, 3, 33-37.

Brown, C.J., Abbas, P.J., Fryauf-Bertschy, H., Kelsay, D. & Gantz, B.J. (1994). Intraoperative and postoperative electrically evoked auditory brain stem responses in Nucleus cochlear implant users: Implication for the fitting process. Ear and Hearing, 15, 168-176.

Tye-Murray, N. & Kelsay, D.M.R. (1993). A communication training program for parents of cochlear implant users. Volta Review, 95, 22-31.

Fryauf-Bertschy, H., Tyler, R.S., Kelsay, D.M. & Gantz, B.J. (1992). Performance over time of congenitally deaf and postlingually deafened children using a multichannel cochlear implant. Journal of Speech and Hearing Research, 35, 4, 913-920.

Tyler, R.S. & Kelsay, D.M. (1990). Advantages and disadvantages reported by some of the better cochlear implant patients. American Journal of Otology, 11, 4, 282-289.

Email: linda-louko@uiowa.edu
116-A Speech & Hearing Center
319 / 335-8698

Link to Dr. Louko's CV (in pdf)

Email: karla-mcgregor@uiowa.edu
121-C Speech & Hearing Center
319 / 335-8724

Research
Dr. McGregor is interested in how children learn words. To address this question, she explores individual differences in word learning by comparing children with specific language impairment or autism to children who are developing normally. She has also explored variation within the population of normal learners including comparisons of children developing at a typical rate and those who are very precocious and comparisons of children from different language communities.

Laboratory website
Word Learning Lab

Member of the Delta Center

Selected publications
McGregor, K. K., Berns, A., Owen, A.J., & Michels, S., Duff, D., Bahnsen, A.J., & Lloyd, M. (2011). Associations between syntax and the lexicon among children with or without ASD and language impairment. Journal of Autism and Developmental Disorder. DOI 10.1007/s10803-011-1210-4.

McGregor, K.K., Rost, G.C., Guo, L.Y., Sheng, L. (2010). What compounds mean to children with SLI. Applied Psycholinguistics , 31 , 463–487.

Sheng, L., & McGregor, K.K. (2010). Lexical-semantic organization in children with specific language impairment. Journal of Speech, Language, and Hearing Research. 53. 146-159 .

Sheng, L., & McGregor, K.K. (2010). Object and action naming in children with specific language impairment. Journal of Speech, Language, and Hearing Research, 53 , 1704-1719.

McGregor, K.K., Rohlfing, K., Bean, A., & Marschner, E. (2009). Gesture as a support for word learning: The case of under . Journal of Child Language, 36, 807-828.

Booth, A.E., McGregor, K.K. & Rohlfing, K.J. (2008). Socio-pragmatics and attention: Contributions to gesturally guided word learning in toddlers. Language Learning and Development, 4 , 179-202.

McGregor, K.K., Sheng, L., & Ball, T. (2007). Complexities of word learning over time. Language, Speech, and Hearing Services in Schools, 38 , 1 – 12.

Hashimoto, N., McGregor, K.K., & Graham, A. (2007). Conceptual organization at six and eight: Evidence from the semantic priming of object decisions. Journal of Speech, Language, and Hearing Research, 50, 161-176.

Smith, B., McGregor, K.K., & DeMille, D. (2006). Phonological development in lexically precocious two-year-olds. Applied Psycholinguistics, 27, 355-375.

Newman, R.M., & McGregor, K.K. (2006). Teachers and laypersons discern quality differences in narratives produced by children with or without SLI. Journal of Speech, Language, and Hearing Research, 49, 1022-1036 .

Sheng, L., McGregor, K.K., & Marian, V. (2006). Lexical-semantic organization in bilingual children: Evidence from a repeated word association task. Journal of Speech, Language, and Hearing Research, 49 , 572-587.

Email: yu-hsiang-wu@uiowa.edu
Office: 125-C Speech & Hearing Center
319/335-8728

Research interest
Real-world outcome measures of hearing devices and aging

Publications

Wu, Y. H. & Bentler, R. A. (in press). The effect of reverberation on audio-visual directional microphone benefit: Perception and prediction. Ear and Hearing.

Wu, Y. H., Stangl, E., Bentler, R. A., & Stanziola, R. W. (in press) The effect of hearing aid technologies on listening in an automobile. Journal of the American Academy of Audiology.

Wu, Y. H. & Bentler, R. A. (in press). Do older adults have social lifestyles that place fewer demands on hearing? Journal of the American Academy of Audiology.

Wu, Y. H. & Bentler, R. A. (2012). Clinical measures of directivity: the assumption, accuracy, and reliability. Ear and Hearing, 33, 44-56.

Wu, Y. H. & Bentler, R. A. (2011). A method to measure hearing aid directivity index and polar pattern in small and reverberant enclosures, International Journal of Audiology, 50, 405-416.

Wu, Y. H. & Bentler, R. A. (2010). Impact of visual cues on directional benefit and preference: Part 1 - laboratory tests. Ear and Hearing, 31, 22-34.

Wu, Y. H. & Bentler, R. A. (2010). Impact of visual cues on directional benefit and preference: Part 2 - field tests. Ear and Hearing, 31, 35-46.

Wu, Y. H. (2010). The effect of age on directional microphone hearing aid benefit and preference. Journal of the American Academy of Audiology, 21, 78-89.

Wu, Y. H. & Bentler, R. A. (2009). Using a signal cancellation technique involving impulse response to assess directivity of hearing aids. Journal of the Acoustical Society of America, 126, 3214-3226.

Bentler, R. A., Wu, Y. H., Kettel, J., & Hurtig, R. (2008). Digital Noise Reduction: Outcomes from laboratory and field studies. International Journal of Audiology, 47 , 447-460.

Wu, Y. H. & Bentler, R. A. (2007). Using a signal cancellation technique to assess adaptive directivity of hearing aids. Journal of the Acoustical Society of America, 122 , 496-511.

Email: jerald-moon@uiowa.edu
122-E Speech & Hearing Center
319 / 335-8722

Research
Research interests: Speech aerodynamics, velopharyngeal function, and articulatory coordination.

Class websites
003:110 Phonetics: Theory and Applications
003:112 Anatomy and Physiology of Speech Production

Selected publications
Malick, D., Moon, J., Canady, J. (2007) Stress velopharyngeal insufficiency: prevalence, treatment, and management practices. Cleft Palate-Craniofacial Jour , 44, 424-433.

Moon, J., Kuehn, D., Chan G, Zhao, L. (2007) Induced velopharyngeal fatigue effects in speakers with repaired palatal clefts. Cleft Palate-Craniofacial Jour , 44 , 251-260.

Kuehn, D., and Moon, J. (2005). Histologic study of intra-velar structures in normal human adult specimens. Cleft Palate-Craniofacial Jour , 42 , 481-489.

Sharp, H., Dailey, S., and Moon, J. (2003). Speech and language development disorders in infants and children with cleft lip and palate. Pediatric Annals , 32, 476-480.

Moon, J., Collins, D., and Canady, J. (2003) Single motor unit activity in levator veli palatine during speech and nonspeech tasks. Cleft Palate-Craniofacial Jour , 40 ,256-262.

Kuehn, D. and Moon, J. (2000) Induced fatigue effects on velopharyngeal closure force. Jour. Speech Hear. Res. , 43 , 486-500.

Berry, D., Moon, J., and Kuehn, D. (1999) A histologically-based finite element model of the soft palate. Cleft Palate-Cranio. Jour., 36, 217-223.

Moon, J., Thompson, S., Jaeckel, E., and Canady, J. (1998) Muscle fiber type distribution in the normal human levator veli palatini muscle. Cleft Palate-Cranio. Jour., 35, 419-424.

Barsoumian, R., Kuehn, D., Moon, J., and Canady, J. (1998) An anatomic study of the tensor veli palatini and dilatator tubae muscles in relation to eustachain tube and velar function. Cleft Palate - Cranio. Jour.,35, 101-110.

Kuehn, D., and Moon, J. (1997) Velopharyngeal closure force and levator veli palatini activation levels in relation to varying phonetic contexts. Jour. Speech Hear. Res. , 41, 51-62.

Email: diane-niebuhr@uiowa.edu
122-C Speech & Hearing Center
319 / 335-8743

Professional interests
Diagnostic audiology and aural rehabilitation with a special interest in hearing aids and rehabilitation of adults with acquired hearing loss.

Email: amanda-owen-vanhorne@uiowa.edu
121-A Speech & Hearing Center
319 / 335-6951

Lab website
Grammar Acquisition Lab

Research
My primary research interests lie in complex sentence production and comprehension in typically developing children and children with Specific Language Impairment. I am particular interested in exploring the linguistic factors that influence difficulties with grammatical accuracy. As a secondary focus, I am interested in differentiating between actual linguistic knowledge (competence) and language production abilities (performance) in children.

Member of the Delta Center

Publications
Achenbaugh, W. & Owen Van Horne, A.J., (submitted) Syntactic complexity and grammatical accuracy trade-offs in typical children and children with SLI. Clinical Linguistics and Phonetics.

Koehlinger, K.K., Owen Van Horne, A.J., & Moeller, M.P., (submitted). Grammatical outcomes of 3 & 6 year old children with mild-severe hearing loss. Journal of Speech, Language, & Hearing Research

Guo, L.Y., Owen Van Horne, A.J., & Tomblin, J.B., (in press). The role of developmental levels in examining the effect of subject types on the production of auxiliary 'is' in young English-speaking children. Journal of Speech, Language, & Hearing Research.

Owen Van Horne, A.J., & Lin, .S.J, (in press) Cognitive state verbs and verb complements in children with SLI and their typically developing peers. Clinical Linguistics & Phonetics.

Guo, L.Y., Owen, A.J., Tomblin, J.B., (2010). Effect of subject types on the production of auxiliary ‘is’ in young English-speaking children. Journal of Speech, Language, & Hearing Research, 53,1720-1741.

Owen, A.J. (2010). Factors affecting accuracy of past tense production in children with SLI: What can verb type, clause type, and sentence type tell us about current theoretical approaches? Journal of Speech, Language, & Hearing Research, 53, 993-1014.

Owen, A.J., & Leonard, L.B. (2007). The overgeneralization of nonfinite complements to finite contexts: The case of decide. Journal of Child Language. 34, 545-570.

Owen, A.J., & Leonard, L.B., (2006). The production of finite and nonfinite complement clauses by children with SLI and their typically developing peers. Journal of Speech, Language, & Hearing Research, 49, 548-571.

Owen, A. J., & Leonard, L.B., (2002). Lexical diversity in the spontaneous speech of children with specific language impairment: Application of D. Journal of Speech, Language, & Hearing Research, 45, 927-937.

Email: elizabeth-delsandro@uiowa.edu
116 Speech & Hearing Center
319 / 335-6998

Email: ingo-titze@uiowa.edu
330 Speech & Hearing Center
319 / 335-6600

Joint Appointment
UI School of Music

Research interests
Acoustics and biomechanisms of speech, with primary emphasis on computer simulation of human vocalization.

Publications
Klemuk, S.A., Riede, T., Walsh, E.J., and Titze, I.R. (in review). Tiger and lion vocal folds are adapted to produce low-pitched sounds. Ann Biomedical Engineering

Titze, I.R. & Hunter, E.J. (in press). Feasibility of measurement of a voice range profile with a semi-occluded vocal tract. Logopedics Phoniatrics Vocology.

Titze, I.R., Worley, A.S., and Story, B.H. (2011). Source-vocal tract interaction in female operatic singing and theatre belting. Journal of Singing , Vol. 67(5): 561-572.

Popolo, P.S., Titze, I.R. and Hunter, E.J. (in press). Towards a self-rating tool of the inability to produce soft voice based on nonlinear events: a preliminary study. Acta Acustica-Acustica

Titze, I.R. (in review). Adhesion of a monolayer of fibroblast cells to fibronectin under sonic vibrations in a bioreactor. Ann of Otology Rhinology & Laryngology

Titze, I.R. (in press). Vocal fold mass is not a useful quantity for describing F 0 in vocalization. J. Speech Language, Hear. Res .

Hunter, E.J. and Titze, I.R. (2010). Variation of intensity, fundamental frequency, and voicing for teachers in occupational versus non-occupational settings. J. Speech Language, Hear. Res . 53(4): 862-875.

Klemuk, S.A., Lu, X., Hoffman, H., and Titze, I.R.. (2010). Phonation threshold pressure predictions using viscoelastic properties up to 1400 Hz of injectables intended for Reinke's Space. The Laryngoscope .120(5): 995-1001.

Titze, I.R., Fitch, W.T., Hunter, E.J., Alipour, F., Montequin, D., Armstrong, D.L., McGee, J., and Walsh, E.J. (2010). Vocal power and pressure-flow relationships in excised tiger larynges. J Ex Biol 213(Pt 22): 3866-3873.

Titze, I.R. and Hunter, E.J. (2010) Feasibility of measurement of a voice range profile with a semi-occluded vocal tract. Logopedics Phoniatrics Vocology e-Pub ahead of print.

A current list of Ingo Titze’s publications are available through the National Library of Medicine's website, PubMed.

Email: j-tomblin@uiowa.edu
120-C Speech & Hearing Center
319 / 335-8745

Lab website
Child Language Research Center

Research
My research is generally concerned with developmental language impairment. The research I have been conducting concerns the following topics: course of spoken language impairment, validity of different diagnostic standards for language impairment, association of reading and written language disorder with spoken language impairment, association of child psychopathologies and behavior disorders with earlier and concurrent spoken language impairment, genetic factors contributing to a liability for spoken language and reading impairment.

I have been addressing these questions through three research programs that have employed children with specific language impairment, children with hearing impairment most of whom have received cochlear implants, and family members of children with either specific language impairment, or children with autism.

Member of the Delta Center

Publications
Hedenius, M., Persson, J. Tremblay, A. Adi-Japha, E., Verissimo, J., Dye C. D., Alm, P. Jennische, M., Tomblin, J. B. & Ullman, M. T. (in press) Grammar predicts procedural learning and consolidation effects with specific language impairment. Research in Developmental Disabilities

Guo, H., Tomblin, J. B. Owen, A. (in press)The role of developmental levels in examining the effect of subject types on the production of auxiliary 'is' in young English-speaking children. Journal of Speech Language and Hearing Research.

Tomblin, J. B , Bean, A., & McGregor, K., (2011) Specific Language Impairment. In D. G.Amaral, G.D. Dawson, D. H. Geschwind (Eds) Autism Spectrum Disorders. Oxford University Press.

Misyak, J., Christiansen, M., & Tomblin, J. B. (2010). On-line individual differences in statistical learning predict language processing. Frontiers in Language Science. 1:31, 1-9.

Weber-Fox, C., Leonard, L. B., Hampton Wray, A., & Tomblin, J. B. (2010). Electrophysiological correlates of rapid auditory and linguistic processing in adolescents with specific language impairment. Brain and Language , 115 , 162-181 .

Misyak, J., Christiansen, M., & Tomblin, J. B. (2010). Sequential Expectations: The role of prediction-based learning in language. Topics in Cognitive Science. 2, 138-153 .

Tomblin, J. B. (2010) The EpiSLI database: A publically available data base on speech and language. Language Speech Hearing Services in Schools .

Tomblin, J. B. (2009) Children with Specific Language Impairment. In E. Bavin (Ed) Handbook of Child Language . Cambridge, UK: Cambridge University Press.

Tomblin, J. B. and Christiansen, M. H. (2009). Explaining developmental communication disorders. In R. Paul (Ed.) Speech Disorders San Diego, CA : Plural.

McMurray, B. Samelson, V., Lee, S., & Tomblin, J. B. (2009) Eye-movements and spoken word recognition in Language Impairment: In search of the computational locus of individual differences. Cognitive Science.60, 1-39.

Tomblin, J. B., Bjork, J., Shriberg, L, Williams, C. , Anderson, S. , Patil, S., O'Brien, M. & Murray, J. C. (2009) Language features of a chromosome 7;13 translocation involving FOXP2 . Journal of Speech Language and Hearing Research. 52, 1157-1174

Kristen A. Lindgren, K. A., Folstein, S., Tomblin, J. B., & Tager-Flusberg, H. (2009) Language and reading abilities of children with autism spectrum disorders and specific language Impairment and their first-degree relatives. Autism Research,2, 22-38

Spencer, J. P., Blumberg, M. S., McMurray, B. Robinson, S. R., Samuelson, L. K., & Tomblin, J. B. (2009). Short arms and talking eggs: Why we should no longer abide the nativist-empiricist debate . Child Development Perspectives,3,. 79-87.

Spencer, L. J. & Tomblin, J. B. (2009). Evaluating Phonological Processing Skills in Children With Prelingual Deafness Who Use Cochlear Implants. The Journal of Deaf Studies and Deaf Education, 14 , 1-21.

Norbury, C, Tomblin, J. B, Bishop, D.V.M. (2008) Understanding Developmental Language Disorders. Psychology Press .

Nippold, M. A., Mansfield, T. C., Billow, J L., Tomblin, J. B. (2008) Expository discourse in adolescents with language impairments: examining syntactic development. American Journal of Speech-Language Pathology. 17 356-366.

Catts, H., Sittner Bridges, M., Little, T. D., & Tomblin, J. B. (2008) Reading Achievement Growth in Children With Language Impairments. Journal of Speech Language and Hearing Research , 51,1569 - 1579.

Guo, L., Tomblin, J. B., Samelson, V. (2008) Pauses in the narratives of English speaking children with specific language impairment. Journal of Speech Language and Hearing Research. 51, 722-738.

Peng, J., , Tomblin, J. B., Spencer, L. (2008) Long-term Trajectories of the Development of Speech Sound Production in Pediatric Cochlear Implant Recipients Journal of Speech Language and Hearing Research . 51 1353-1368 .

Law, J., Tomblin, J. & Zhang, X. (2008) Characterizing the growth trajectories of language impaired children between seven and eleven years. Journal of Speech, Language, and Hearing Research, 51, 739-749.

Email: christopher-turner@uiowa.edu
121-B Speech & Hearing Center
319 / 335-8721

Research
Research interests: Auditory perception of speech and other sounds by both normal and hearing-impaired patients.

Publications
Yao, A., Turner, C.W., Gantz, B.J. (2006). " Stability of low-frequency residual hearing in patients who are candidates for combined acoustic plus electric hearing", J. Speech Hear. Res., 49, 1085-1090.

Hong, Robert S. and Turner, C.W. (2006). “Pure-tone auditory stream segregation and speech perception in cochlear implant recipients,” J.Aocust. Soc. Am., 120, 360-374.

Turner, C.W. (2006). “Hearing Loss and the Limits of Amplification,” Audiology and Neurotology, 2006. 11 S, 2-5.

Gantz, B.J. and Turner, C.W. , Gfeller, K. and (2006). “Acoustic Plus Electric Speech Processing: Results of a Multicenter Clinical Trial of the Iowa/Nucleus Hybrid Implant, Audiology and Neurotology, 11, S1, 63-68.

Gfeller, K.. Olszewski .C.,Turner, C.W. amd Gantz, B. (2006). “Music Perception with Cochlear Implants and Residual Hearing.”Audiology and Neurotology, 11, S1, 12-15..

Reiss, L.A.J., Turner, C.W., Erenberg, S. R., and Gantz, B. (2007). “Changes in pitch with a cochlear implant over time,” J. Assoc. Res. Otol. Jun;8(2):241-57..

Gfeller,K., Turner, C., Zhang, X., Olszewski, C., Gantz, B. (2007). “Accuracy of Cochlear Implant Recipients on Pitch Perception, Melody Recognition and Speech Reception in Noise,” Ear and Hearing, 28,412-423.

Peng, S. P., Tomblin, B., Turner, C.W. (2008). “Production and Perception of Speech Intonation in Pediatric Cochlear Implant Recipients and Individuals with Normal Hearing",” Ear and Hearing, 29.

Reiss, L.A., Gantz, B.J. and Turner, C.W. (2008). “Cochlear Implant Speech Processor Frequency Allocations May Influence Pitch Perception, Otology and Neurology, 29:160-167.

Turner, C.W., Gantz, L.R. and Reiss, L.A.J. (2008). “Integration of acoustic and electric hearing,” Journal of Rehabilitation Research and Developments, 45, 769-778.

Turner, C.W., Reiss, L.R. and Gantz, B. (2008). “Combining acoustic and electric hearing,” Hearing Research, 242(1-2), 164-171.

Gantz, B.J., Hansen, M.R, Turner, C.W., Oleson, J.J., Reiss, L.A., Parkinson, A.J. (2009). “Hybrid 10 Clinical Trial: Preliminary Results”, Audiology and Neurotology, 14, Suppl. 1 – 32-38)).

Hong, Robert S. and Turner, C.W. (2008) “Auditory stream segregation using temporal periodicity cues in cochlear implant recipients,” J. Acoust. Soc. Am., 126, 291-299.

Woodson, E., Reiss. L.A., , Turner, C.W., Gfeller, K., and Gantz, B.G. (2010). “The Hybrid Cochlear Implant: A review”, Adv OtoRhino, 67, 125-134, Karger Press.

Turner, C., Gantz, B.J., Karsten, S., Fowler, J. Reiss, L.A. (2010). “The impact of hair cell preservation in cochlear implantation: Combined Electric and Acoustic Hearing,” Otology and Neurology, 31, 1227-1232.

Email: rich-tyler@uiowa.edu
Room 21167 PFP UIHC
319 / 356-2471

Joint appointment
Department of Otolaryngology-Head & Neck Surgery

Research interests
Audiovisual speech perception by the hearing impaired, rehabilitation, tinnitus, and use of hearing aids and cochlear implants.

Publications
Tyler, R.S. (1991). What can we learn about hearing aids from cochlear implants? Ear and Hearing, 12(6 Suppl.): 177S-186S.

Tyler, R.S., Opie, J.M., Fryauf-Bertschy, H., and Gantz, B.J. (1992). Future directions for cochlear implants. Journal of Speech-Language-Pathology and Audiology, 16(2): 151-164.

Tyler, R.S. (1993). Cochlear implants and the deaf culture. American Journal of Audiology, 2(1): 26-32.

Tyler, R.S. (Ed.). (1993). Cochlear Implants: Audiological Foundations. San Diego: Singular Publications.

Tyler, R.S., Witt, S.A., Dunn, C.C. (2004). Trade-Offs Between Better Hearing and Better Cosmetics. American Journal of Audiology, 13(2): 193-199.

Tyler, R.S. (Ed.). (2006). Tinnitus Treatment: Clinical Protocols. New York: Thieme.

Tyler, R.S., Noble, W., Dunn, C., Witt, S. (2006). Some benefits and limitations of binaural cochlear implants and our ability to measure them. Int J Audiol, 45(Supplement 1):S113-S119.

Tyler, R.S., Noble, W.G., Coelho, C. (2006). Considerations for the Design of Clinical Trials for Tinnitus. Acta Oto-Laryngologica, 126: 44-49.

Perreau, A., Tyler R.S., Witt, S. Dunn, C. (2007) Selection Strategies for Binaural and Monaural Cochlear Implantation. American Journal of Audiology. 16(2): 85-93.

Tyler, R.S., Witt, S., Dunn, CC., Perreau, A. (2008). A Daily Alternating Method for Comparing Different Signal-Processing Strategies in Hearing Aids and In Cochlear Implants. Journal of the American Academy of Audiology 19:443-454.

Email: anne-m-wallace@uiowa.edu
120-D Speech & Hearing Center
319 / 335-8702

Professional interests
All disorder areas with special interest in general speech / language diagnostics and aural rehabilitation.

Email: tricia-zebrowski@uiowa.edu
127-C Speech & Hearing Center
319 / 335-8735

Lab website

Research interests
Identification and treatment of stuttering in children, involving the study of child behaviors and environmental factors related to the nature and development of stuttering.

Member of the Delta Center

Publications
Books
Zebrowski, P.M., & Kelly, E.M. (2002). Manual for Stuttering Intervention. San Diego: Singular Publishing.

Book Chapters (invited)
Zebrowski, P.M. (2007). Treatment factors that influence therapy outcomes of children who stutter. In E. Conture and R. Curlee (Eds). Stuttering and Related Disorders of Fluency (3 rd edition). New York: Thieme pp. 23-38

Zebrowski, P.M. (2005). Counseling people who stutter and their families. CSHA (California Speech-Language Hearing Association) Magazine , Vol. 35, No. 2.

Zebrowki, P.M. (2003). Understanding and coping with emotions: Counseling teenagers who stutter. In Effective Counseling in Stuttering Therapy, Publication No. 18. Memphis, TN: Stuttering Foundation.

Journal Articles (refereed)
Tumanova, V., Zebrowski, P., & Throneburg, R. and Kulakkaykci, M. (2011). Articulatory rate and its relation to disfluency type, duration, and temperament in preschool children who stutter. Journal of Communication Disorders, 44(1), 116-129.

Buhr, A. & Zebrowski, P. (2010). Sentence position and syntactic complexity of stuttering in early childhood: A longitudinal study. Journal of Fluency Disorders,34(3), 155-172.

Zebrowski, P. Arenas, R. (in press). The “Iowa Way” Revisited. Journal of Fluency Disorders.

Arenas, R., Zebrowski, P., & Moon, J. (in revision). Phonetically governed voicing onset and offset in children who stutter. Journal of Fluency Disorders.

Chou, Fang-Chi, & Zebrowski, P. (in preparation). Stuttering loci in relation to lexical tone in Mandarin speaking preschoolers.

Tumanova, V., Zebrowski, P., & Goodman, S. (in preparation). Procedural learning in adults who stutter: Evidence from visuomotor tracking.

Savelkoul, E., & Zebrowski, P., Feldstein, S., Cole-Harding, S. (2007). Coordinated interpersonal timing in the conversations between children who stutter and their mothers and fathers. Journal of Fluency Disorders , 32 (1), 1-32.

Floyd, J., & Zebrowski, P., and Flamme, G. (2007). Stages of change and stuttering: A preliminary review. Journal of Fluency Disorders, 32 (2), 95-120.

Sargent, A., Robb, M., Zebrowski, P. (2006). Parental speaking rate and childhood stuttering. New Zealand Journal of Speech-Language Therapy (5), 30-39.

Zebrowski, P. (2006). Counseling people who stutter and their familes . Journal of Stuttering Therapy, Advocacy, and Research, 1, 1- 6.

Email: wendy-fick@uiowa.edu
3 Speech & Hearing Center
319 / 335-8749

Professional interests
Wendy Fick is a research assistant for the Child Language Research Center. Her primary duties are data collection and management.

Email: elizabeth-walker@uiowa.edu
3 Speech & Hearing Center
319 / 353 8980

Email: marcia-stclair@uiowa.edu
3 Speech & Hearing Center
319 / 335-6618

Email: kelvin-lehrman@uiowa.edu
122-A Speech & Hearing Center
319 / 335-8716

Email: elizabeth-stangl@uiowa.edu
327 Speech & Hearing Center
319/ 335-9758

Email: marlea-obrien@uiowa.edu
3 Speech & Hearing Center
319 / 335-6618

Professional duties
Marlea O'Brien is the program coordinator of the Child Language Research Center. She is the key point of contact for the various projects and activities of the CLRC. Her responsibilities include the oversight of field research activities and staff; management of the financial and grants processes; internal and external reporting of CLRC activities; and serving as liaison for families, school personnel, and investigators.

Email: katherine-rebal@uiowa.edu
119-B Speech & Hearing Center
319 / 335-8720

Email: lauren-eldridge@uiowa.edu
116 Speech & Hearing Center
319 / 335-8736

Clinic reception / scheduling

Undergraduate admissions

Email: david-wood@uiowa.edu
27 Speech & Hearing Center
319 / 335-8747

Email: connie-ferguson@uiowa.edu
3 Speech & Hearing Center
319 / 335-6618

Email: dorothy-albright@uiowa.edu
119 Speech & Hearing Center
319 / 335-8718

Dorothy Albright provides support for:

Administrative Office reception, backup to DEO secretary
Karla McGregor
Amanda Owen
Kathy Rebal
Chris Turner

122 Speech & Hearing Center
319/ 335-8726
Vicki Jennings provides support for:

Paul Abbas

Toni Cilek

Stephanie Fleckenstein

Richard Hurtig

Danielle Kelsay

Jerry Moon

Diane Niebuhr

Alison Scheer-Cohen

Anne Wallace

Lauren Zubow

Email:kathy-miller@uiowa.edu
116 Speech & Hearing Center
319 / 335-8736

Kathy Miller provides support for:

Wendell Johnson Speech & Hearing Clinic
Summer intensive programs
Linda Louko, Clinic Director

Email: sharon-thomason@uiowa.edu
127 Speech & Hearing Center
319 / 335-8731

Sharon Thomason provides support for:

Undergraduate program
Marcia Akeson
Sandie Bass-Ringdahl
Carolyn Brown
Shawn Goodman
Eileen Finnegan
Jean Gordon
Michael Karnell
Ingo Titze
Trish Zebrowski

Email: mary-yotty@uiowa.edu
119 Speech & Hearing Center
319 / 335-8719

Mary Jo Yotty provides support for:

Ruth Bentler , Department Chair
Graduate Admissions

Email: shawn-goodman@uiowa.edu
Office #: Room 125-A SHC
319 / 335-8700

Link to Auditory Research Laboratory site

Professional positions
Assistant Professor, Department of Speech Pathology and Audiology, University of Iowa, 2006 – present.

Post-doctoral Fellow, Center for Hearing Research, Boys Town National Research Hospital, 2003 – 2006.

Certifications
Certificate of Clinical Competence (Audiology), American Speech-Language-Hearing Association, December 2005

Research interests
Otoacoustic emissions and middle ear reflectance and will be teaching courses on instrumentation, signal and systems, and evoked potentials.

Selected publications
Scheperle RA, Goodman SS , Neely SA (2011) Further assessment of forward pressure level for in situ calibration. Journal of the Acoustical Society of America, in press.

Goodman SS, Mertes IB, & Scheperle RA (2011) Delays and growth rates of multiple TEOAE components. Proceedings of the 11 th International Mechanics of Hearing Workshop, July, Williamstown, MA.

Keefe DH, Goodman SS, Ellison JE, Fitzpatrick DF, and Gorga MP. (2011) Detecting high-frequency hearing loss with click-evoked otoacoustic emissions. Journal of the Acoustical Society of America , 129, 245-261. 17 pages, Published

Lewis JD, Goodman SS, and Bentler RE. (2010) Measurement of Hearing Aid Internal Noise Using Synchronous Averaging. Journal of the Acoustical Society of America . 127, 2521-2528. 8 pages, Published.

Goodman SS, Ellison JE, Fitzpatrick DE, Jesteadt W, and Keefe DH. (2009) High-frequency click-evoked otoacoustic emissions and behavioral thresholds in humans. Journal of the Acoustical Society of America , 125, 1014-1032. 19 pages, Published.

Goodman SS and Keefe DH. (2006) Simultaneous measurement of noise-activated middle-ear muscle reflex and stimulus frequency otoacoustic emissions. Journal of the Association for Research in Otolaryngology , 7, 125-139. 14 pages, Published.

Kewley-Port D and Goodman SS. (2005) Thresholds for second formant transitions in front vowels . Journal of the Acoustical Society of America , 118, 3252-3260. 8 pages, Published

Goodman SS, Withnell RH, de Boer E, Lilly DJ, and Nuttall AL. (2004) Cochlear delays measured with amplitude-modulated tone-burst evoked OAEs. Hearing Research, 188, 57-69. 12 pages, Published.

Goodman SS, Withnell RH, and Shera CA. (2003) The origin of SFOAE microstructure in the guinea pig. Hearing Research, 183, 7-17. 10 pages, Published.

Shaffer LA, Withnell RH, Dhar S, Lilly DJ, Goodman SS, and Harmon KM. (2002) Otoacoustic emissions as predictors of auditory sensitivity. Ear and Hearing , 24, 367-379. 12 pages, Published.

Email rick-arenas@uiowa.edu
Office: 3 Speech & Hearing Center
Phone: 430-3780

Rick Arenas is a doctoral candidate in the department of Communication Sciences and Disorders. His primary interest is in developmental stuttering. In particular, he is interested in the contextual variability of stuttering. He is currently investigating the effects of autonomic arousal on speech production, as well as how contextual fluctuations in the error monitoring system may be related to the moment or instance of stuttering. The goal of this work is to find a biologically plausible explanation for the contextual variability of stuttering that is directly tied to current models of speech production.

Email alison-lemke@uiowa.edu
Office: 122-A Speech & Hearing Center

Professional interests
Adult neurogenic communication disorders

Email sarah-klemuk@uiowa.edu
Office: 334-B Speech & Hearing Center
Phone: 353-5657

Research Interests
My primary area of interest is voice biomechanics and laryngeal cell and molecular biology. I am interested in bioreactor design and implementation for use with living vocal, cochlear, and dermal cell constructs. I am interested in cell mechanics, cell response to in vivo – like vibrations, and rheologic changes to living tissues due to short and long term vibration exposure. During my doctoral training under the guidance of Dr. Titze and with a 2-year NIH National Research Service Award, I became an expert in rheological measurement and analysis of voice – related tissues, addressing questions about the limited frequency range and degree of measurement accuracy obtainable using a stress-controlled rheometer.

Research Support
NIH/NIDCD R01 DC004224 (investigator) 04/01/2007-present

NIH/NIDCD F31 DC008047 (principal investigator) 09/01/2005-03/31/2007

Publications
Klemuk SA, Titze IR. (in review) Determining motor inertia of a stress-controlled rheometer for more accurate measures near speaking frequencies. Journal of Rheology.

Klemuk SA, Jaiswal S, Titze IR. (in review) Tissue viability in a rheometer used to stress and engineer vocal fold tissues in vitro. Journal of the Acoustical Society of America.

Roy Chowdhury P, Klemuk SA , Titze IR, Kumar V. (in press) Effects of fabrication parameters on viscoelastic shear modulus of 2,3-dialdehydecellulose membranes – potential scaffolds for vocal fold lamina propria tissue engineering. Journal of Biomedical Materials Research: Part A

Caton T, Thibeault SL, Klemuk S , Smith S. In reference to viscoelasticity of hyaluronan and non-hyaluronan based vocal fold injectables: Implications for mucosal vs muscle use – Reply. The Laryngoscope, 117 (8): 1506-1508 (2007)

Caton T, Thibeault SL, Klemuk S , Smith S. Viscoelasticity of hyaluronan and non-hyaluronan based vocal fold injectables: Implications for mucosal vs muscle use. The Laryngoscope, 117(3): 516-521 (2007)

Klemuk S, Titze I. (abstract) Preshearing effects on viscoelastic properties of collagen-based vocal fold injectables. JASA 120(5): 3351 (2006)

Klemuk SA , Titze IR. Viscoelastic properties of three vocal fold injectable biomaterials at low audio frequencies. The Laryngoscope 114(9): 1597-1603 (2004)

Titze IR, Klemuk SA , Gray SD. Methodology for rheological testing of engineered biomaterials at low audio frequencies. Journal of the Acoustical Society of America 115(1): 392-401 (2004)

Klemuk S , Titze I, Gray S. (abstract) Methodology for straining engineered vocal fold tissues at audio frequencies. Journal of the Acoustical Society of America 109:2412 (2001)

Klemuk SA , Rodgers VGJ. Optimization characteristics of a voice simulation model. Senior Honors Project. Department of Physics & Astronomy, The University of Iowa (2000)

Email: amanda-berns@uiowa.edu
Office: Room 14 Speech and Hearing Center
Telephone: 319 / 335-9766

Professional duties
After completing her BS in Psychology at the University of Iowa, Amanda has been the research coordinator for Dr. Karla McGregor's Word Learning Lab for three years and now Dr. Tricia Zebrowski's Stuttering Research Lab. Her responsibilities include wrapping up studies from the Word Meaning project in the Word Learning Lab and coordinating the study Physiological Correlates in the Stuttering Research Lab.

Email: nichole-eden@uiowa.edu
2 Speech & Hearing Center
319 / 353-5779

After working as a clinical speech pathologist in Hawaii for five years, Nichole returned to her Iowa roots and joined the Word Learning Lab in 2006. She currently works as a research assistant, and her primary duties include data collection and participant recruitment.

Email: karen-bryant@uiowa.edu
120-C Speech & Hearing Center
319/335-8207 (WJSHC)
319/384-6620 (UIHC)

Professional interests
Karen Bryant is a clinical instructor/supervisor at the University of Iowa Hospital and Clinics with specialty training in neurogenic speech/language and swallowing disorders.

She has taught Motor Speech Disorders, Neurogenic Language Disorders, and is a frequent guest lecturer in many of the speech pathology courses at U of I. She also co-teaches the Structural Disorders Course.

Email: karen-kirk@uiowa.edu
120-F Speech & Hearing Center
319 / 335-8701

Joint Appointment
Otolaryngology-Head and Neck Surgery

Research Interests
Speech perception and spoken language processing in listeners with cochlear implants or hearing aids; development of theoretically-motivated tests of spoken word recognition

Selected Publications
Niparko, J.K. (Ed), Kirk, K. I., Robbins, A. M., Mellon, N. K., Tucci, D. L., Wilson, B. S. (Co-Eds.) (2009). Cochlear Implants: Principles and Practices, Second Edition. Philadelphia: Lippincott Williams & Wilkins.

Krull, V., Luo, X., & Kirk, K. I. (submitted). Talker training using electro-acoustic simulation: Generalization to speech and emotion recognition. Journal of the Acoustical Society of America.

Holt, R.F., Kirk, K.I., & McCutcheon, M.J. (in press). Assessing multimodal spoken word-in-sentence recognition in children with normal hearing and children with cochlear implants. Journal of Speech, Language and Hearing Research. NIHMSID # 237058.

Krull, V., Choi, S., Kirk, K.I., Prusick, L., & French, B. (2010). Lexical effects on spoken word recognition by children with normal hearing. Ear and Hearing , 31 , 102-144.

Niparko, J.K. (Ed), Kirk, K. I., Robbins, A. M., Mellon, N. K., Tucci, D. L., Wilson, B. S. (Co-Eds.) (2009). Cochlear Implants: Principles and Practices, Second Edition. Philadelphia: Lippincott Williams & Wilkins.

Kirk, K. I., & Choi, S. (2009). Clinical investigations of cochlear implant performance. In J. K. Niparko (Ed.), Cochlear Implants: Principles and Practice , Second Edition, (pp. 191-222). Philadelphia: Lippincott Williams & Wilkins.

Kirk, K.I., French, B., Choi, S. (2009). Assessing spoken word recognition in children with cochlear implants. In L. S. Eisenberg (Ed.), Clinical Management of Children with Cochlear Implants, (pp. 215-250). San Diego: Plural Publishers.

Hay-McCutcheon, M.J., Kirk, K.I., Henning, S.C., Gao, S., & Qi, R. (2008). Using early language outcomes to predict later language ability in children with cochlear implants. Audiology & Neurotology, 13, 370-378.

Kirk, K.I., Hay-McCutcheon, M.J., Holt, R.A., Gao, S., Qi, R., & Gerlain, B.L. (2007). Audiovisual spoken word recognition by children with cochlear implants. Audiological Medicine, 5, 250-261.

Holt, R. F., Kirk, K. I., Eisenberg, L. S., Martinez, A. S., & Campbell, W (2005). Spoken language development in children with residual hearing using cochlear implants and hearing aids in opposite ears. Ear and Hearing, 26, 82S-91S.

Holt, R., & Kirk, K. I. (2005). Speech and language development in cognitively delayed children with cochlear implants. Ear and Hearing, 26, 132-148.

Cleary, M., Pisoni, D. B., & Kirk, K. I. (2005). Influence of voice similarity on talker discrimination in children with normal hearing and children with cochlear implants. Journal of Speech, Language, and Hearing Research, 48, 204-223.

Kaiser, A. R., Kirk, K. I., Lachs, L. & Pisoni, D. B. (2003). Talker and lexical effects on audiovisual word recognition by adults with cochlear implants. Journal of Speech, Language, and Hearing Research, 46: 390-404.

Cleary, M., Pisoni, D. B. & Kirk, K. I. (2002). Working memory spans as predictors of word recognition and receptive vocabulary in children with cochlear implants. Volta Review, 102 (monograph), 259-280.

Kirk, K. I., Eisenberg, L. S., Martinez, A. S. & Hay-McCutcheon, M. (1999). Lexical Neighborhood Test: Test-retest reliability and interlist equivalency. The Journal of the American Academy of Audiology, 10 , 113-123.

Sommers, M. S., Kirk, K. I. & Pisoni, D. B. (1997). Some considerations in evaluating spoken word recognition by normal-hearing, noise-masked normal-hearing and cochlear implant listeners. I: The effects of response format. Ear and Hearing,18, 89-99.

Kirk, K. I., Pisoni, D. B. & Miyamoto, R. C. (1997). Effects of stimulus variability on speech perception in listeners with hearing impairment. Journal of Speech and Hearing Research, 40, 1395-1405.

Kirk, K. I., Pisoni, D. B. & Osberger, M. J. (1995). Lexical effects on spoken word recognition by pediatric cochlear implant users. Ear and Hearing, 16 , 470-481.