title: Cochlear implant users' spectral ripple resolution.
abstract: This study revisits the issue of the spectral ripple resolution abilities of cochlear implant (CI) users. The spectral ripple resolution of recently implanted CI recipients (implanted during the last 10 years) were compared to those of CI recipients implanted 15 to 20 years ago, as well as those of normal-hearing and hearing-impaired listeners from previously published data from Henry, Turner, and Behrens [J. Acoust. Soc. Am. 118, 1111-1121 (2005)]. More recently, implanted CI recipients showed significantly better spectral ripple resolution. There is no significant difference in spectral ripple resolution for these recently implanted subjects compared to hearing-impaired (acoustic) listeners. The more recently implanted CI users had significantly better pre-operative speech perception than previously reported CI users. These better pre-operative speech perception scores in CI users from the current study may be related to better performance on the spectral ripple discrimination task; however, other possible factors such as improvements in internal and external devices cannot be excluded.
authors.affiliation: Department of Communication Sciences and Disorders, University of Iowa, 227 SHC, 200 Hawkins Drive, Iowa City, Iowa 52242, USA.
authors.forename: Eun Kyung
authors.initials: EK
authors.lastname: Jeon
authors.affiliation: Department of Communication Sciences and Disorders, University of Iowa, 121B SHC, 200 Hawkins Drive, Iowa City, Iowa 52242, USA.
authors.forename: Christopher W
authors.initials: CW
authors.lastname: Turner
authors.affiliation: Department of Otolaryngology - Head and Neck Surgery, University of Iowa, 21016 PFP, 200 Hawkins Drive, Iowa City, Iowa 52242, USA.
authors.forename: Sue A
authors.initials: SA
authors.lastname: Karsten
authors.affiliation: School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane St Lucia, Queensland 4072, Australia.
authors.forename: Belinda A
authors.initials: BA
authors.lastname: Henry
authors.affiliation: Department of Otolaryngology - Head and Neck Surgery, University of Iowa, 21158 PFP, 200 Hawkins Drive, Iowa City, Iowa 52242, USA.
authors.forename: Bruce J
authors.initials: BJ
authors.lastname: Gantz
mesh_terms: D000328:Adult; D000368:Aged; D001309:Auditory Threshold; D003054:Cochlear Implants; D004867:Equipment Design; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000523:psychology / Q000534:rehabilitation; D006801:Humans; D008297:Male; D008875:Middle Aged; D009622:Noise; D010700:Phonetics; D013067:Speech Perception; D013997:Time Factors; D055815:Young Adult