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You are here: McMaster Institute for Music and the Mind > Publications > An improved model of electrical stimulation of the auditory nerve

Ian C Bruce, L S Irlicht, M White, S J O'Leary, S Dynes, E Javel, and Graeme M Clark (1997)

An improved model of electrical stimulation of the auditory nerve

In Cochlear Implants: XVI World Congress of Otohinolaryngology Head and Neck Surgery:125-130.

Mathematical models are a useful means of formally describing and investigating pertinent features of complex systems such as the human auditory system. These features may be deduced from physiological and psychophysical experiments utilising animal models or humans, and from engi~eering studies. Historically, models of the auditory nerve's (AN) response to electrical stimulation have ignored randomness in single-fiber activity which has been recorded in physiological studies. These models, however, have been unable to accurately predict a number of important psychophysical phenomena. In this study, a model that incorporates random activity of the AN is presented, and is shown to predict psychophysical performance. These results indicate that random activity is indeed an important part of the response of the AN to electrical stimulation. 

auditory nerve, electrical stimulation, mathematical model