Co-Principal Investigators


Colleen Le Prell, PhD

Professor
Program Head, Audiology
Email: colleen.leprell@utdallas.edu
Phone: 214-905-3018
Office: CD_J216
Campus Mail Code: CD

Dr. Colleen Le Prell is one of the leading researchers in the area of hearing loss prevention. Her work has emphasized the identification of cell death pathways activated by noise, and assessment of therapeutic agents that prevent cell death and hearing loss. Dr. Le Prell has served as the president of the National Hearing Conservation Association and serves on task forces and working groups for multiple professional organizations. She served as the lead editor on two Springer Handbook of Auditory Research editions (2012: Noise-Induced Hearing Loss: Scientific Advances; 2016: Translational Research in Audiology, Neurotology, and the Hearing Sciences), and was co-editor on the 2015 Oxidative Stress in Applied Basic Research and Clinical Practice: Free Radicals in ENT Pathology. Dr. Le Prell received her bachelor’s degree from the University of Minnesota at Morris and her master’s and doctoral degrees from the University of Michigan.

Karen Pawlowski, PhD

Senior Research Scientist
Callier Center, School of Behavioral & Brain Sciences, UT Dallas
Email: karen.pawlowski@utdallas.edu
Phone: 214-605-1287

Dr. Pawlowski obtained her Bachelor of Science degree from the University of Minnesota (U of MN), College of Biological Sciences in 1981. She supervised the U of MN Department of Otolaryngology’s Electron Microscopy Laboratory, where she assisted the principle investigator, Arndt J. Duvall III, M.D., for 9 years in NIH funded work on microanatomy of the inner ear in health and disease, publishing under her maiden name, Robinson. Dr. Pawlowski joined the Otologic Research Laboratory of Charles G. Wright, Ph.D., Department of Otolaryngology-Head & Neck Surgery, University of Texas (UT) Southwestern Medical Center in 1991. Dr. Pawlowski co-authored publications with Dr. Wright while completing her MS in Applied Cognition and Neuroscience at UT Dallas in 1997, then her Ph.D. in Auditory Neuroscience at UT Dallas in 2000. 
Her graduate education focused on neuroscience related to hearing.She has over 30 years’ experience studying tissues within the auditory periphery, utilizing histology, immunohistochemistry and functional testing to describe pathologic conditions of the external, middle and inner ear. Her collaborative efforts with otologists, neuro-otologists, audiologists, geneticists, pharmacologists, and physiologists from several local and outside institutions has resulted in the generation of numerous peer-reviewed publications and several book chapters. She successfully managed a laboratory in the Department of Otolaryngology-Head & Neck Surgery, UT Southwestern Medical Center for over 14 years before recently retiring.   At present, she is a part time Sr. Research Scientist assisting in Dr. Edward Lobarinas’ laboratory at UT Dallas with his NIH funded research investigating best practices in detection of hearing loss due to previously unrecognized disease conditions, such as isolated loss of inner hair cells.