scholarly journals Contralateral noise degrades frequency-coding accuracy in normal-hearing adults – preliminary results

2021 ◽  
Author(s):  
Fuh-Cherng Jeng ◽  
Kelley A. Stehura ◽  
Breanna N. Hart ◽  
Allison T. Giordano
Keyword(s):  
Normal Hearing ◽  
Contralateral Noise ◽  
Preliminary Results ◽  
Frequency Coding

Contralateral noise degrades frequency-coding accuracy in normal-hearing adults

2021 ◽  
Vol 150 (4) ◽  
pp. A144-A144
Author(s):  
Fuh-Cherng Jeng ◽  
Kelley A. Stehura ◽  
Breanna N. Hart ◽  
Allison T. Giordano
Keyword(s):  
Normal Hearing ◽  
Contralateral Noise ◽  
Frequency Coding

scholarly journals Subcortical frequency-coding errors are linked to speaker-variability intolerance in normal-hearing adults

2017 ◽  
Vol 142 (3) ◽  
pp. EL270-EL275
Author(s):  
Fuh-Cherng Jeng ◽  
Chao-Yang Lee ◽  
Tiffany N. McDonald ◽  
Hallie M. Ganch ◽  
Elizabeth A. Teets ◽  
...  
Keyword(s):  
Normal Hearing ◽  
Speaker Variability ◽  
Frequency Coding

Effect of Contralateral Noise on the Middle Components of the Averaged Electroencephalic Response

1978 ◽  
Vol 21 (4) ◽  
pp. 613-624 ◽  
Author(s):  
Howard N. Gutnick ◽  
Robert Goldstein
Keyword(s):  
Normal Hearing ◽  
Contralateral Noise ◽  
Time Points ◽  
Response Index ◽  
Middle Component ◽  
Continuous Noise ◽  
Contralateral Ear ◽  
Point To Point

Middle-component AERs were obtained from normal-hearing adults to 1000-Hz tone pips at 20 and 40 dB SL and at silent control. A continuous noise at 20, 40, and 80 dB SL and at silent control was presented to the contralateral ear. When the tone pips were at 20 or 40 dB SL, five peaks were identified visually in waveforms constructed by digitally adding AERs across subject and replication. Peak latencies determined from the composite waveforms for each signal-masker condition were used as time points to measure point-to-point amplitudes in individual AERs. The masker at 20 or 40 dB SL did not alter or degrade the AER produced by the tone pip. It was concluded that clinical masking may be used in EEA when the middle components of the AER are employed as a response index.

scholarly journals Troublesome Tinnitus in Children: Epidemiology, Audiological Profile, and Preliminary Results of Treatment

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
G. Bartnik ◽  
A. Stępień ◽  
D. Raj-Koziak ◽  
A. Fabijańska ◽  
I. Niedziałek ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Normal Hearing ◽  
Hearing Screening ◽  
Screening Tests ◽  
Tinnitus Retraining Therapy ◽  
Preliminary Results ◽  
Results Of Treatment ◽  
Retraining Therapy

Introduction. Although tinnitus often has a significant impact on individual's life, there are still few reports relating to tinnitus in children. In our tinnitus clinic, children with distressing tinnitus constitute about 0,5% of all our patients.Objectives. The aim of this study was to analyse children with troublesome tinnitus as regards epidemiology, audiological profile, and preliminary effects of the therapy.Methods. A retrospective study was carried out involving the cases of 143 children consulted in our Tinnitus Clinic in 2009. The selected group with troublesome tinnitus was evaluated and classified for proper category of Tinnitus Retraining Therapy (TRT).Results. The study showed that 41.3% of the children suffered from bothersome tinnitus. In this group 44.1% of the patients demonstrated normal hearing. The success of the therapy after 6 months was estimated on 81.4% of significant improvement.Conclusions. It is recommended that a questionnaire include an inquiry about the presence of tinnitus during hearing screening tests.

scholarly journals Cochlear Implant: Effect of the Number of Channel and Frequency Selectivity on Speech Understanding in Noise Preliminary Results in Simulation with Normal-Hearing Subjects

2020 ◽  
Vol 81 (1-4) ◽  
pp. 17-23
Author(s):  
P.A. Cucis ◽  
C. Berger-Vachon ◽  
R. Hermann ◽  
H. Thaï-Van ◽  
S. Gallego ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Signal To Noise Ratio ◽  
Normal Hearing ◽  
Measuring Channel ◽  
Frequency Selectivity ◽  
Speech Understanding ◽  
Preliminary Results ◽  
Channel Interaction ◽  
Speech Understanding In Noise ◽  
The Impact

The cochlear implant is the most successful implantable device for the rehabilitation of profound deafness. However, in some cases, the electrical stimulation delivered by the electrode can spread inside the cochlea creating overlap and interaction between frequency channels. By using channel-selection algorithms like the “nofm” coding-strategy, channel interaction can be reduced. This paper describes the preliminary results of experiments conducted with normal hearing subjects (n = 9). Using a vocoder, the present study simulated the hearing through a cochlear implant. Speech understanding in noise was measured by varying the number of selected channels (“nofm”: 4, 8, 12 and 16of20) and the degree of simulated channel interaction (“Low”, “Medium”, “High”). Also, with the vocoder, we evaluated the impact of simulated channel interaction on frequency selectivity by measuring psychoacoustic tuning curves. The results showed a significant average effect of the signal-to-noise ratio (p < 0.0001), the degree of channel interaction (p < 0.0001) and the number of selected channels, (p = 0.029). The highest degree of channel interaction significantly decreases intelligibility as well as frequency selectivity. These results underline the importance of measuring channel interaction for cochlear implanted patients to have a prognostic test and to adjust fitting methods in consequence. The next step of this project will be to transpose these experiments to implant users, to support our results.

scholarly journals Measuring communicative performance with the FAPCI instrument: Preliminary results from normal hearing and cochlear implanted children

2011 ◽  
Vol 75 (4) ◽  
pp. 549-553 ◽  
Author(s):  
James H. Clark ◽  
Pooja Aggarwal ◽  
Nae-Yuh Wang ◽  
Raymond Robinson ◽  
John K. Niparko ◽  
...  
Keyword(s):  
Normal Hearing ◽  
Preliminary Results ◽  
Communicative Performance

scholarly journals Low-Intensity Steady Background Noise Enhances Pitch Fusion Across the Ears in Normal-Hearing Listeners

2021 ◽  
Vol 12 ◽  
Author(s):  
Yonghee Oh ◽  
Sabrina N. Lee
Keyword(s):  
Stochastic Resonance ◽  
Background Noise ◽  
Auditory Perception ◽  
Normal Hearing ◽  
Pink Noise ◽  
Noise Levels ◽  
Signal To Noise ◽  
Perceptual Integration ◽  
Preliminary Results ◽  
Low Intensity

Binaural pitch fusion is the perceptual integration of stimuli that evoke different pitches between the ears into a single auditory image. This study was designed to investigate how steady background noise can influence binaural pitch fusion. The binaural fusion ranges, the frequency ranges over which binaural pitch fusion occurred, were measured with three signal-to-noise ratios (+15, +5, and −5dB SNR) of the pink noise and compared with those measured in quiet. The preliminary results show that addition of an appropriate amount of noise can reduce binaural fusion ranges, an effect called stochastic resonance. This finding increases the understanding of how specific noise levels can sharpen binaural pitch fusion in normal hearing individuals. Furthermore, it elicits more pathways for research to explore how this benefit can practically be used to help improve binaural auditory perception.

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