Lab Members


David Horn, M.D., M.S.

Primary Investigator

Dr. Horn is an Associate Professor in the Department of Otolaryngology-Head and Neck Surgery at the University of Washington and holds an adjunct appointment with the Department of Speech and Hearing
Sciences. He is a pediatric otolaryngologist and Co-director of the Pediatric Cochlear Implant Program at Seattle Children’s Hospital. His research employs behavioral (psychoacoustic) methods to study auditory development in pediatric cochlear implant patients. Dr. Horn’s research has been supported by the National Institutes of Health, American Otological Society, Seattle Children’s Research Fund, and private donations.

Dr. Horn earned his medical degree at the Medical College of Wisconsin and then completed an Otolaryngology residency at Indiana University. During residency, he completed 2 years of dedicated research with Drs. David Pisoni and Richard Miyamoto on cognitive and behavioral development in pediatric cochlear implant patients. His Pediatric Otolaryngology fellowship training was subsequently completed at the University of Pittsburgh and he joined the UW faculty in 2010. Originally from Los Angeles, Dr. Horn is thrilled to be back on the west coast. His lovely wife and three tempestuous daughters keep him busy enough when away from the hospital and the lab. When he has a free moment, he spends his time cycling, cooking, watching old movies, and playing guitar.


Mariette Broncheau, B.S.

Research Coordinator

Mariette is the Research Coordinator for PADL.  She is the first point of contact for most people who enroll their children in any of our studies.  Mariette studied Speech and Hearing Sciences here at the University of Washington, earning a Bachelor of Science degree in 2013.  In her spare time, she enjoys campfires, video games, and attending live music concerts with her uproarious husband.



Meg Meredith


Meg Meredith, Au.D., CCC-A

Research Audiologist

Meg is a clinical pediatric audiologist at Seattle Children’s Hospital.  She has been working in pediatric audiology since receiving a Master’s degree in Audiology from Portland State University in 2000. Prior to joining the team at Seattle Children’s in 2005, Meg was the audiologist for Tucker Maxon School in Portland. She completed an AuD from the University of Florida in 2013. Meg’s clinical practice at Seattle Children’s is focused on cochlear implants, but also includes work with children who use hearing aids as well as diagnostic evaluations. Her primary role on the study team is to collect auditory language and speech perception outcomes measures for participants. When she’s not at work, Meg is an avid skier. She also enjoys traveling with her husband and their two chocolate Labrador retrievers.




Moira McShane, B.A.

Lab Assistant

Moira is a 3rd year Doctor of Audiology (AuD) student at the University of Washington. She is originally from Evanston, IL. She was an early childhood educator and spent some time teaching in a mainstream preschool classroom in Denver, Colorado. She completed her undergraduate degree at The College of Wooster in Ohio. She is currently interested in working with the pediatric cochlear implant population as an audiologist. Within the lab, her main responsibility is test assisting with research subjects. In her spare time she loves to ski, hike, and explore the city.



Joshua Cheung, B.A.

Lab Assistant

Josh is a 4th year Doctor of Audiology (Au.D.) student at the University of Washington.  He is originally from Sacramento, CA and received his undergraduate degree from the University of California, Berkeley.  He is currently interested in working with the pediatric population as an audiologist.  Within the lab, his main responsibility is test assisting with research subjects.   In his free time, he enjoys traveling, hiking, playing video games and playing tennis.