title: Lateralization of interaural timing differences with multi-electrode stimulation in bilateral cochlear-implant users.
abstract: Bilateral cochlear implant (BiCI) users have shown variability in interaural time difference (ITD) sensitivity at different places along the cochlea. This paper investigates perception of multi-electrode binaural stimulation to determine if auditory object formation (AOF) and lateralization are affected by variability in ITD sensitivity when a complex sound is encoded with multi-channel processing. AOF and ITD lateralization were compared between single- and multi-electrode configurations. Most (7/8) BiCI users perceived a single auditory object with multi-electrode stimulation, and the range of lateralization was comparable to single-electrode stimulation, suggesting that variability in single-electrode ITD sensitivity does not compromise AOF with multi-electrode stimulation.
authors.affiliation: Binaural Hearing and Speech Laboratory, Waisman Center, University of Wisconsin-Madison, 1500 Highland Avenue, Madison, Wisconsin 53705, USA ahkan@waisman.wisc.edu.
authors.forename: Alan
authors.initials: A
authors.lastname: Kan
authors.affiliation: Auditory Protection and Performance Division, U.S. Army Aeromedical Research Laboratory, Building 6901 Farrel Road, Fort Rucker, Alabama 36362, USA heath.g.jones2.ctr@mail.mil.
authors.forename: Heath G
authors.initials: HG
authors.lastname: Jones
authors.affiliation: Binaural Hearing and Speech Laboratory, Waisman Center, University of Wisconsin-Madison, 1500 Highland Avenue, Madison, Wisconsin 53705, USA, litovsky@waisman.wisc.edu.
authors.forename: Ruth Y
authors.initials: RY
authors.lastname: Litovsky
mesh_terms: D000161:Acoustic Stimulation; D019929:Cochlear Implantation; D003054:Cochlear Implants; D004558:Electric Stimulation; D013016:Sound; D013017:Sound Localization