1 KU Leuven, University of Leuven, Department of Neurosciences, Research Group ExpORL, Onderwijs en Navorsing 2, Herestraat 49, bus 721, 3000, Leuven, Belgium; Cochlear Technology Centre Belgium, Schaliënhoevedreef 20i, 2800, Mechelen, Belgium. Electronic address: christiane.dhondt@kuleuven.be.
2 KU Leuven, University of Leuven, Department of Neurosciences, Research Group ExpORL, Onderwijs en Navorsing 2, Herestraat 49, bus 721, 3000, Leuven, Belgium; University Hospitals Leuven, Department of Otolaryngology, Head and Neck Surgery, Herestraat 49, 3000 Leuven, Belgium. Electronic address: nicolas.verhaert@kuleuven.be.
3 KU Leuven, University of Leuven, Department of Neurosciences, Research Group ExpORL, Onderwijs en Navorsing 2, Herestraat 49, bus 721, 3000, Leuven, Belgium. Electronic address: jan.wouters@med.kuleuven.be.