OBJECTIVES: Recent studies suggest that pitch perceived through cochlear implants (CIs) changes with experience to minimize spectral mismatches between electric and acoustic hearing. This study aimed to test whether perceived spectral mismatches are similarly minimized between two electric inputs. DESIGN: Pitch perception was studied in a subject with a 10-mm CI in one ear and a 24-mm CI in the other ear. Both processors were programmed to allocate information from the same frequency range of 188-7938 Hz, despite the large differences in putative insertion depth and stimulated cochlear locations between the CIs. RESULTS: After 2 and 3 years of experience, pitch-matched electrode pairs between CIs were aligned closer to the processor-provided frequencies than to cochlear position. CONCLUSIONS: Pitch perception may have adapted to reduce perceived spectral discrepancies between bilateral CI inputs, despite 2-3 octave differences in tonotopic mapping.
OBJECTIVES: Recent studies suggest that pitch perceived through cochlear implants (CIs) changes with experience to minimize spectral mismatches between electric and acoustic hearing. This study aimed to test whether perceived spectral mismatches are similarly minimized between two electric inputs. DESIGN: Pitch perception was studied in a subject with a 10-mm CI in one ear and a 24-mm CI in the other ear. Both processors were programmed to allocate information from the same frequency range of 188-7938 Hz, despite the large differences in putative insertion depth and stimulated cochlear locations between the CIs. RESULTS: After 2 and 3 years of experience, pitch-matched electrode pairs between CIs were aligned closer to the processor-provided frequencies than to cochlear position. CONCLUSIONS: Pitch perception may have adapted to reduce perceived spectral discrepancies between bilateral CI inputs, despite 2-3 octave differences in tonotopic mapping.
Authors: D K Eddington; W H Dobelle; D E Brackmann; M G Mladejovsky; J L Parkin Journal: Ann Otol Rhinol Laryngol Date: 1978 Nov-Dec Impact factor: 1.547
Authors: Lina A J Reiss; Rindy A Ito; Jessica L Eggleston; Selena Liao; Jillian J Becker; Carrie E Lakin; Frank M Warren; Sean O McMenomey Journal: Ear Hear Date: 2015 Mar-Apr Impact factor: 3.570
Authors: Matthew B Fitzgerald; Ksenia Prosolovich; Chin-Tuan Tan; E Katelyn Glassman; Mario A Svirsky Journal: J Am Acad Audiol Date: 2017-05 Impact factor: 1.664