David Stapells, University of British Columbia

Audiology and Speech Sciences Professor Emeritus Vancouver, British Columbia stapells@audiospeech.ubc.ca

Expert In

Audiology Auditory evoked potentials Brain responses and hearing Electrophysiological diagnosis Hearing tests Newborn hearing screening

Bio/Research

David R. Stapells is a hearing scientist with special expertise in physiological measures of hearing. His research is both applied and basic, with two overriding themes: (i) development, refinement, and assessment of physiologic tests of hearing, and (ii) investigation of brain mechanisms underlying human auditory perception. The first category of studies is particularly relevant to current clinical practice in audiology. Recent research in the first category has focused on developing the auditory steady-state responses (ASSRs) for assessment of hearing in young infants, as well as for newborn screening hearing. The goal of the second category of studies is to use auditory evoked/event-related potentials to gain insight into the presence, timing, strength, and location (in terms of anatomical and processing hierarchy) of brain processes underlying normal and disordered human percepts of auditory sensations such as loudness, frequency/pitch, duration, location, interactions between stimuli, and perception of speech. Of particular interest is the investigation of brain processes underlying the behavioural results of “classic” psychoacoustic studies using electrophysiologic responses generated by different levels of the auditory system, Dr. Stapells has research collaborations with colleagues at (i) B.C.’s Children’s Hospital, (ii) Worker’s Compensation Board of B.C., (iii) Simon Fraser University, (iii) Rotman Research Institute (Toronto), (iv) Towson University (Maryland), and (v) TongRen Hospital (Beijing).

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