Acknowledgements
This paper is based on an invited lecture given by the author in the special symposium on ‘The Listening Brain’ within the Eleventh International Conference on Cochlear Implants and Other Implantable Auditory Technologies, held in Stockholm, Sweden, from June 30 through July 3, 2010. The special symposium was generously sponsored by MED-EL GmbH, of Innsbruck, Austria. The author also is a consultant for MED-EL. However, none of the statements herein favors that or any other company.