scholarly journals Effects of insertion depth on spatial speech perception in noise for simulations of cochlear implants and single-sided deafness

2016 ◽  
Vol 56 (sup2) ◽  
pp. S41-S48 ◽  
Author(s):  
Xiaoqing Zhou ◽  
Huajun Li ◽  
John J. Galvin ◽  
Qian-Jie Fu ◽  
Wei Yuan
Keyword(s):  
Speech Perception ◽  
Cochlear Implants ◽  
Insertion Depth ◽  
Speech Perception In Noise ◽  
Single Sided Deafness

scholarly journals Bone-anchored hearing system, contralateral routing of signals hearing aid or cochlear implant: what is best in single-sided deafness?

2021 ◽  
Author(s):  
Till F. Jakob ◽  
Iva Speck ◽  
Ann-Kathrin Rauch ◽  
Frederike Hassepass ◽  
Manuel C. Ketterer ◽  
...  
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Hearing Aids ◽  
Long Term Results ◽  
Speech Perception In Noise ◽  
Sound Localisation ◽  
Therapy Option ◽  
Single Sided Deafness ◽  
Objective Hearing Tests

Abstract Purpose The aim of the study was to compare long-term results after 1 year in patients with single-sided deafness (SSD) who were fitted with different hearing aids. The participants tested contralateral routing of signals (CROS) hearing aids and bone-anchored hearing systems (BAHS). They were also informed about the possibility of a cochlear implant (CI) and chose one of the three devices. We also investigated which factors influenced the choice of device. Methods Prospective study with 89 SSD participants who were divided into three groups by choosing BAHS, CROS, or CI. All participants received test batteries with both objective hearing tests (speech perception in noise and sound localisation) and subjective questionnaires. Results 16 participants opted for BAHS-, 13 for CROS- and 30 for CI-treatment. The greater the subjective impairment caused by SSD, the more likely patients were to opt for surgical treatment (BAHS or CI). The best results in terms of speech perception in noise (especially when sound reaches the deaf ear and noise the hearing ear), sound localization, and subjective results were achieved with CI. Conclusion The best results regarding the therapy of SSD are achieved with a CI, followed by BAHS. This was evident both in objective tests and in the subjective questionnaires. Nevertheless, an individual decision is required in each case as to which SSD therapy option is best for the patient. Above all, the patient's subjective impairment and expectations should be included in the decision-making process.

scholarly journals Developmental Links Between Speech Perception in Noise, Singing, and Cortical Processing of Music in Children with Cochlear Implants

2018 ◽  
Vol 36 (2) ◽  
pp. 156-174 ◽  
Author(s):  
Ritva Torppa ◽  
Andrew Faulkner ◽  
Teija Kujala ◽  
Minna Huotilainen ◽  
Jari Lipsanen
Keyword(s):  
Speech Perception ◽  
Cochlear Implants ◽  
Musical Instrument ◽  
Noise Performance ◽  
Speech Perception In Noise ◽  
Speech In Noise ◽  
Brain Responses ◽  
Time Period ◽  
Musical Sounds ◽  
Auditory Skills

The perception of speech in noise is challenging for children with cochlear implants (CIs). Singing and musical instrument playing have been associated with improved auditory skills in normal-hearing (NH) children. Therefore, we assessed how children with CIs who sing informally develop in the perception of speech in noise compared to those who do not. We also sought evidence of links of speech perception in noise with MMN and P3a brain responses to musical sounds and studied effects of age and changes over a 14–17 month time period in the speech-in-noise performance of children with CIs. Compared to the NH group, the entire CI group was less tolerant of noise in speech perception, but both groups improved similarly. The CI singing group showed better speech-in-noise perception than the CI non-singing group. The perception of speech in noise in children with CIs was associated with the amplitude of MMN to a change of sound from piano to cymbal, and in the CI singing group only, with earlier P3a for changes in timbre. While our results cannot address causality, they suggest that singing and musical instrument playing may have a potential to enhance the perception of speech in noise in children with CIs.

scholarly journals Intracochlear Position of Cochlear Implants Determined Using CT Scanning versus Fitting Levels: Higher Threshold Levels at Basal Turn

2016 ◽  
Vol 21 (1) ◽  
pp. 54-67 ◽  
Author(s):  
Feddo B. van der Beek ◽  
Jeroen J. Briaire ◽  
Kim S. van der Marel ◽  
Berit M. Verbist ◽  
Johan H.M. Frijns
Keyword(s):  
Speech Perception ◽  
Cochlear Implants ◽  
Dynamic Range ◽  
Ct Scanning ◽  
Electrode Position ◽  
Insertion Depth ◽  
Threshold Levels ◽  
Lower Amplitude ◽  
Standard Profile

Objectives: In this study, the effects of the intracochlear position of cochlear implants on the clinical fitting levels were analyzed. Design: A total of 130 adult subjects who used a CII/HiRes 90K cochlear implant with a HiFocus 1/1J electrode were included in the study. The insertion angle and the distance to the modiolus of each electrode contact were determined using high-resolution CT scanning. The threshold levels (T-levels) and maximum comfort levels (M-levels) at 1 year of follow-up were determined. The degree of speech perception of the subjects was evaluated during routine clinical follow-up. Results: The depths of insertion of all the electrode contacts were determined. The distance to the modiolus was significantly smaller at the basal and apical cochlear parts compared with that at the middle of the cochlea (p < 0.05). The T-levels increased toward the basal end of the cochlea (3.4 dB). Additionally, the M-levels, which were fitted in our clinic using a standard profile, also increased toward the basal end, although with a lower amplitude (1.3 dB). Accordingly, the dynamic range decreased toward the basal end (2.1 dB). No correlation was found between the distance to the modiolus and the T-level or the M-level. Furthermore, the correlation between the insertion depth and stimulation levels was not affected by the duration of deafness, age at implantation or the time since implantation. Additionally, the T-levels showed a significant correlation with the speech perception scores (p < 0.05). Conclusions: The stimulation levels of the cochlear implants were affected by the intracochlear position of the electrode contacts, which were determined using postoperative CT scanning. Interestingly, these levels depended on the insertion depth, whereas the distance to the modiolus did not affect the stimulation levels. The T-levels increased toward the basal end of the cochlea. The level profiles were independent of the overall stimulation levels and were not affected by the biographical data of the patients, such as the duration of deafness, age at implantation or time since implantation. Further research is required to elucidate how fitting using level profiles with an increase toward the basal end of the cochlea benefits speech perception. Future investigations may elucidate an explanation for the effects of the intracochlear electrode position on the stimulation levels and might facilitate future improvements in electrode design.

scholarly journals Factors influencing speech perception in noise for 5-year-old children using hearing aids or cochlear implants

2017 ◽  
Vol 57 (sup2) ◽  
pp. S70-S80 ◽  
Author(s):  
Teresa YC Ching ◽  
Vicky W Zhang ◽  
Christopher Flynn ◽  
Lauren Burns ◽  
Laura Button ◽  
...  
Keyword(s):  
Speech Perception ◽  
Cochlear Implants ◽  
Hearing Aids ◽  
Speech Perception In Noise ◽  
Factors Influencing

scholarly journals Frequency Modulation System and speech perception in the classroom: a systematic literature review

CoDAS ◽  
2015 ◽  
Vol 27 (3) ◽  
pp. 292-300 ◽  
Author(s):  
Ana Lívia Libardi Bertachini ◽  
Altair Cadrobbi Pupo ◽  
Marina Morettin ◽  
Maria Angelina Nardi Martinez ◽  
Maria Cecília Bevilacqua ◽  
...  
Keyword(s):  
Speech Perception ◽  
Cochlear Implants ◽  
Frequency Modulation ◽  
Sound Field ◽  
Research Strategy ◽  
Speech Perception In Noise ◽  
Manual Search ◽  
School Research ◽  
Study Participants ◽  
The Impact

PURPOSE: This review aimed at presenting the benefits regarding the speech perception in noise shown by children who wear hearing aid devices and/or cochlear implants with the Frequency Modulation (FM) System at school. RESEARCH STRATEGY: A bibliographic survey was conducted in an electronic database with standardized search until the year 2012, and a manual search was performed by using specific keywords. SELECTION CRITERIA: For the selection and evaluation of the scientific studies chosen in the search, criteria were established covering the following aspects: type of study, participants, adopted intervention, and evaluation of results. DATA ANALYSIS: The FM system was verified to improve speech perception and speech threshold in noise in all studies. RESULTS: Regarding the performance as to type, the best results were obtained when children used the personal FM system, followed by the table and the sound field systems. CONCLUSION: After extensive review of national and international literature, it was concluded that the studies indicate the need for further research concerning mainly the impact of the FM system on the school performance of children who have sensory devices coupled to the FM system. Findings in the literature with relation to the publications focused on speech perception in noise did not relate educational and auditory aspects.

scholarly journals Short-term outcomes of cochlear implantation for single-sided deafness compared to bone conduction devices and contralateral routing of sound hearing aids—Results of a Randomised controlled trial (CINGLE-trial)

PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0257447
Author(s):  
Jeroen P. M. Peters ◽  
Jan A. A. van Heteren ◽  
Anne W. Wendrich ◽  
Gijsbert A. van Zanten ◽  
Wilko Grolman ◽  
...  
Keyword(s):  
Speech Perception ◽  
Hearing Aids ◽  
Controlled Trial ◽  
Bone Conduction ◽  
Trial Period ◽  
Speech Perception In Noise ◽  
Treatment Groups ◽  
Sound Localisation ◽  
Single Sided Deafness ◽  
Randomised Controlled

Single-sided deafness (SSD) leads to difficulties with speech perception in noise, sound localisation, and sometimes tinnitus. Current treatments (Contralateral Routing of Sound hearing aids (CROS) and Bone Conduction Devices (BCD)) do not sufficiently overcome these problems. Cochlear implants (CIs) may help. Our aim was to evaluate these treatments in a Randomised Controlled Trial (RCT). Adult SSD patients were randomised using a web-based randomisation tool into one of three groups: CI; trial period of ‘first BCD, then CROS’; trial period of ‘first CROS, then BCD’. After these trial periods, patients opted for BCD, CROS, or No treatment. The primary outcome was speech perception in noise (directed from the front (S0N0)). Secondary outcomes were speech perception in noise with speech directed to the poor ear and noise to the better ear (SpeNbe) and vice versa (SbeNpe), sound localisation, tinnitus burden, and disease-specific quality of life (QoL). We described results at baseline (unaided situation) and 3 and 6 months after device activation. 120 patients were randomised. Seven patients did not receive the allocated intervention. The number of patients per group after allocation was: CI (n = 28), BCD (n = 25), CROS (n = 34), and No treatment (n = 26). In S0N0, the CI group performed significantly better when compared to baseline, and when compared to the other groups. In SpeNbe, there was an advantage for all treatment groups compared to baseline. However, in SbeNpe, BCD and CROS groups performed worse compared to baseline, whereas the CI group improved. Only in the CI group sound localisation improved and tinnitus burden decreased. In general, all treatment groups improved on disease-specific QoL compared to baseline. This RCT demonstrates that cochlear implantation for SSD leads to improved speech perception in noise, sound localisation, tinnitus burden, and QoL after 3 and 6 months of follow-up. For most outcome measures, CI outperformed BCD and CROS. Trial registration: Netherlands Trial Register (www.trialregister.nl): NTR4580, CINGLE-trial.

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