scholarly journals Effects of stimulation configurations on place pitch discrimination in cochlear implants

2011 ◽  
Vol 129 (6) ◽  
pp. 3818-3826 ◽  
Author(s):  
Bomjun J. Kwon ◽  
Trevor T. Perry ◽  
Vauna L. Olmstead
Keyword(s):  
Cochlear Implants ◽  
Pitch Discrimination ◽  
Place Pitch

scholarly journals Place pitch discrimination and speech recognition in cochlear implants users

1996 ◽  
Vol 43 (1) ◽  
Author(s):  
Johan J. Hanekom ◽  
Robert V. Shannon
Keyword(s):  
Speech Perception ◽  
Cochlear Implants ◽  
Speech Processing ◽  
Patient Specific ◽  
Pitch Discrimination ◽  
Discrimination Ability ◽  
Processing Strategies ◽  
Place Pitch ◽  
Pitch Distance ◽  
The Relationship

The considerable variability in speech perception performance among cochlear implant patients makes it difficult to compare the effectiveness of different speech processing strategies. One result is that optimal individualized processor parameter setting is not always achieved. This paper investigates the relationship between place pitch discrimination ability and speech perception to establish whether pitch ranking could be used as an aid in better patient-specific fitting of processors. Three subjects participated in this study. Place pitch discrimination ability was measured and this information was used to design new channel to electrode allocations for each subject. Several allocations were evaluated with speech tests with consonant, vowel and sentence material. It is shown that there is correlation between the perceptual pitch distance between electrodes and speech perception performance. The results indicate that pitch ranking ability might be used both as an indicator of  the speech perception potential of an implant user and in the choice of better electrode configurations.

scholarly journals Place-pitch manipulations with cochlear implants

2012 ◽  
Vol 131 (3) ◽  
pp. 2225-2236 ◽  
Author(s):  
Olivier Macherey ◽  
Robert P. Carlyon
Keyword(s):  
Cochlear Implants ◽  
Place Pitch

scholarly journals Evaluating hearing performance with cochlear implants within the same patient using daily randomization and imaging based fitting - The ELEPHANT study

2020 ◽  
Author(s):  
Lars Lambriks ◽  
Marc Van Hoof ◽  
Joke Debruyne ◽  
Miranda Janssen ◽  
Josef Chalupper ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Cochlear Implants ◽  
Trial Design ◽  
Cone Beam Ct ◽  
Clinical Trial Design ◽  
Daily Basis ◽  
Small Sample ◽  
Place Pitch ◽  
Small Sample Sizes ◽  
The Individual

Abstract Background : Prospective research in the field of cochlear implants is hampered by methodological issues and small sample sizes. The ELEPHANT study presents an alternative clinical trial design with a daily randomized approach evaluating individualized tonotopical CI fitting. Methods : A single blinded, daily randomized clinical trial will be implemented to evaluate a new imaging based CI mapping strategy. A minimum of 20 participants will be included from the start of the rehabilitation process with a 1-year follow-up period. Based on a post-operative cone beam CT scan (CBCT), mapping of electrical input will be aligned to natural place-pitch arrangement in the individual cochlea. Adjustments to the CI’s frequency allocation table will be made so electrical stimulation of frequencies will match as closely as possible with corresponding acoustic locations in the cochlea. A randomization scheme will be implemented whereby the blinded subject crosses over between the experimental and standard fitting program on a daily basis, and thus effectively acts as his own control, followed by a period of free choice between both maps to incorporate patient preference. With this new approach the occurrence of a first-order carryover effect and a limited sample size is addressed. Discussion : The experimental fitting strategy is thought to give rise to a steeper learning curve, result in a better performance in challenging listening situations, improve sound quality, complement better with residual acoustic hearing in the contralateral ear and win the preference of CI-recipients. Concurrently, the suitability of the novel trial design will be considered in investigating these hypotheses. Trial registration : ClinicalTrials.gov: NCT03892941, registered 27 March 2019, https://clinicaltrials.gov/ct2/show/NCT03892941

Pitch discrimination in children using cochlear implants

2006 ◽  
Vol 120 (5) ◽  
pp. 3130-3130
Author(s):  
Amy McKinnon ◽  
Michael Kiefte
Keyword(s):  
Cochlear Implants ◽  
Pitch Discrimination

Music Perception in Adult Users of Cochlear Implants: A Brief Review

2015 ◽  
Vol 22 (1) ◽  
pp. 4-11
Author(s):  
Robert C. Jensen ◽  
Sarah Hargus Ferguson
Keyword(s):  
Cochlear Implants ◽  
Music Perception ◽  
Training Programs ◽  
Musical Training ◽  
Current Steering ◽  
Structure Information ◽  
Auditory Nervous System ◽  
Processing Strategies ◽  
Melody Perception ◽  
Place Pitch

Although cochlear implants (CIs) can provide good speech understanding in quiet, in general, users of CIs have shown poor music perception performance, particularly with regard to pitch (and hence melody). This is primarily due to the limited ability of CI processing strategies and electric stimulation to provide place pitch and fine structure information from the original input signal to the auditory nervous system of the user. Approaches such as current focusing, current steering, enhanced amplitude modulation cues, and optic stimulation have been shown or theorized to assist in music perception, as have musical training programs. This article is a brief review of research related to music perception in adults with CIs, specifically their rhythm, pitch, and melody perception performance; processing strategies that have been or are being developed which might improve their music perception performance; and music training programs that have been shown to improve their music perception performance.

scholarly journals The Relationship Between Insertion Angles, Default Frequency Allocations, and Spiral Ganglion Place Pitch in Cochlear Implants

2015 ◽  
Vol 36 (5) ◽  
pp. e207-e213 ◽  
Author(s):  
David M. Landsberger ◽  
Maja Svrakic ◽  
J. Thomas Roland ◽  
Mario Svirsky
Keyword(s):  
Cochlear Implants ◽  
Spiral Ganglion ◽  
Place Pitch ◽  
The Relationship

scholarly journals Prosody perception and musical pitch discrimination in adults using cochlear implants

2015 ◽  
Vol 54 (7) ◽  
pp. 444-452 ◽  
Author(s):  
Rose Thomas Kalathottukaren ◽  
Suzanne C. Purdy ◽  
Elaine Ballard
Keyword(s):  
Cochlear Implants ◽  
Pitch Discrimination ◽  
Musical Pitch
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