Spectral and temporal analysis of simulated dead regions in cochlear implants

Journal of the Association for Research in Otolaryngology : JARO
Jong Ho WonJay T Rubinstein

Abstract

A cochlear implant (CI) electrode in a "cochlear dead region" will excite neighboring neural populations. In previous research that simulated such dead regions, stimulus information in the simulated dead region was either added to the immediately adjacent frequency regions or dropped entirely. There was little difference in speech perception ability between the two conditions. This may imply that there may be little benefit of ensuring that stimulus information on an electrode in a suspected cochlear dead region is transmitted. Alternatively, performance may be enhanced by a broader frequency redistribution, rather than adding stimuli from the dead region to the edges. In the current experiments, cochlear dead regions were introduced by excluding selected CI electrodes or vocoder noise-bands. Participants were assessed for speech understanding as well as spectral and temporal sensitivities as a function of the size of simulated dead regions. In one set of tests, the normal input frequency range of the sound processor was distributed among the active electrodes in bands with approximately logarithmic spacing ("redistributed" maps); in the remaining tests, information in simulated dead regions was dropped ("dropped" maps). Word r...Continue Reading

References

Jun 1, 1990·The Journal of the Acoustical Society of America·D D Greenwood
Feb 1, 1971·The Journal of the Acoustical Society of America·H Levitt
Sep 25, 1997·The Journal of the Acoustical Society of America·E A Strickland, N F Viemeister
Nov 5, 1997·Journal of Speech, Language, and Hearing Research : JSLHR·K E FishmanW H Slattery
Nov 28, 1997·The Journal of the Acoustical Society of America·M F DormanD Rainey
Mar 25, 1999·The Journal of the Acoustical Society of America·Q J Fu, R V Shannon
Sep 24, 1999·The Journal of the Acoustical Society of America·R V ShannonJ Wygonski
Jan 21, 2000·The Journal of the Acoustical Society of America·Q J Fu, R V Shannon
Aug 7, 2002·Journal of the Association for Research in Otolaryngology : JARO·Robert V ShannonDeniz Baskent
Sep 24, 2002·The Journal of the Acoustical Society of America·Kalyan KasturiTony Spahr
Feb 25, 2003·The Journal of the Acoustical Society of America·Qian-Jie Fu, John J Galvin
Apr 22, 2003·The Journal of the Acoustical Society of America·Deniz Baskent, Robert V Shannon
May 27, 2003·The Journal of the Acoustical Society of America·Belinda A Henry, Christopher W Turner
Oct 1, 1964·Archives of Otolaryngology·H F SCHUKNECHT
Feb 1, 1962·The Journal of Speech and Hearing Disorders·G E PETERSON, I LEHISTE
Dec 18, 2004·The Journal of the Acoustical Society of America·Deniz Başkent, Robert V Shannon
Apr 6, 2005·The Journal of the Acoustical Society of America·Deniz Başkent, Robert V Shannon
Jun 17, 2005·The Journal of the Acoustical Society of America·Li XuBryan E Pfingst
Feb 4, 2006·The Journal of the Acoustical Society of America·Johan LaneauJan Wouters
Mar 7, 2006·Ear and Hearing·Kaibao NieFan-Gang Zeng
Mar 9, 2006·The Journal of the Acoustical Society of America·Deniz Başkent, Robert V Shannon
Oct 26, 2006·Audiology & Neuro-otology·Divya SridharPatricia A Leake
Jan 18, 2007·The Journal of the Acoustical Society of America·Matthew W Smith, Andrew Faulkner
Jun 26, 2007·Journal of the Association for Research in Otolaryngology : JARO·Jong Ho WonJay T Rubinstein
Dec 11, 2007·Journal of the Association for Research in Otolaryngology : JARO·Ward R DrennanJay T Rubinstein
Mar 19, 2008·The Journal of the Acoustical Society of America·David A NelsonHeather Kreft
Jun 17, 2008·Hearing Research·Mohamed BingabrPhilipos C Loizou
Jul 3, 2010·Ear and Hearing·Jong Ho WonJay T Rubinstein
Aug 21, 2010·Trends in Amplification·Julie Arenberg Bierer
Jan 29, 2011·Journal of the Association for Research in Otolaryngology : JARO·Jong Ho WonJay T Rubinstein
Jul 13, 2011·Journal of the Association for Research in Otolaryngology : JARO·Chadi A MakarySaumil N Merchant
Jul 27, 2011·The Journal of the Acoustical Society of America·Jong Ho WonJay T Rubinstein
Oct 7, 2011·The Journal of the Acoustical Society of America·Jong Ho WonJay T Rubinstein
May 9, 2012·The Journal of the Acoustical Society of America·Soha N GaradatBryan E Pfingst
Nov 14, 2012·The Journal of the Acoustical Society of America·Joseph D CrewQian-Jie Fu
Jan 10, 2013·The Journal of the Acoustical Society of America·Gary L JonesJay T Rubinstein
Mar 27, 2013·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Jack H NobleBenoit M Dawant
Jan 31, 2014·Journal of the Association for Research in Otolaryngology : JARO·Christopher J LongZachary M Smith

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Citations

Feb 6, 2017·The Journal of the Acoustical Society of America·David L HornLynne A Werner
Aug 9, 2017·The Journal of Comparative Neurology·Christopher H DillinghamMark L Gabriele
Oct 22, 2016·Ear and Hearing·David L HornLynne A Werner
Jan 4, 2017·The Journal of the Acoustical Society of America·Mishaela DiNinoJulie Arenberg Bierer
May 7, 2021·Journal of Neuroscience Methods·Sonia TabibiIan C Bruce

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