scholarly journals The effects of noise exposure and musical training on suprathreshold auditory processing and speech perception in noise

2017 ◽  
Vol 353 ◽  
pp. 224-236 ◽  
Author(s):  
Ingrid Yeend ◽  
Elizabeth Francis Beach ◽  
Mridula Sharma ◽  
Harvey Dillon
Author(s):  
Saeideh Mehrkian ◽  
Zahra Mozaffari ◽  
Enayatollah Bakhshi

Background and Aim: Because speech percep­tion is disturbed in people who are exposed to noise, this study aimed to investigate the effect of work environment noise on working memory capacity, temporal, and dichotic auditory proce­ssing and relationship between them in elemen­tary school teachers. Methods: Fifty-six female aged 30−50 years were enrolled in our study case and control groups. A total of 28 teachers with normal hearing and poor speech perception in noise were in the case group, and 28 women were controls with normal hearing and good scores in speech perception in noise who did not work in a noisy environment. Working memory tests, dichotic digit test (DDT) and gap-detection test (GDT) were performed for both groups. The mean score of each test was obtained from the two groups and the results were analyzed. Results: Comparison of means between the two groups in DDT, GDT, and working memory capacity test showed that the scores of the case group were significantly lower than those in the control group (p < 0.05). There was no correla­tion between working memory capacity test, DDT, and GDT scores. (p > 0.05, r < 0.1). Conclusion: Noise exposure in the work envi­ronment causes weakness in temporal and dich­otic auditory processing, and working memory capacity. But there was no correlation between working memory capacity and auditory proce­ssing. The findings of this study show the eff­ects of noise exposure on speech perception and the need to protect hearing from noise.


2019 ◽  
Vol 23 ◽  
pp. 233121651987730 ◽  
Author(s):  
Garreth Prendergast ◽  
Samuel Couth ◽  
Rebecca E. Millman ◽  
Hannah Guest ◽  
Karolina Kluk ◽  
...  

Although there is strong histological evidence for age-related synaptopathy in humans, evidence for the existence of noise-induced cochlear synaptopathy in humans is inconclusive. Here, we sought to evaluate the relative contributions of age and noise exposure to cochlear synaptopathy using a series of electrophysiological and behavioral measures. We extended an existing cohort by including 33 adults in the age range 37 to 60, resulting in a total of 156 participants, with the additional older participants resulting in a weakening of the correlation between lifetime noise exposure and age. We used six independent regression models (corrected for multiple comparisons), in which age, lifetime noise exposure, and high-frequency audiometric thresholds were used to predict measures of synaptopathy, with a focus on differential measures. The models for auditory brainstem responses, envelope-following responses, interaural phase discrimination, and the co-ordinate response measure of speech perception were not statistically significant. However, both age and noise exposure were significant predictors of performance on the digit triplet test of speech perception in noise, with greater noise exposure (unexpectedly) predicting better performance in the 80 dB sound pressure level (SPL) condition and greater age predicting better performance in the 40 dB SPL condition. Amplitude modulation detection thresholds were also significantly predicted by age, with older listeners performing better than younger listeners at 80 dB SPL. Overall, the results are inconsistent with the predicted effects of synaptopathy.


2021 ◽  
pp. 1-11
Author(s):  
Chandni Jain ◽  
Vipin Ghosh Pushpoth Gangadharan ◽  
Chetak Kadabasal Basavaraja ◽  
Aishwarya Lakshmi

Purpose This study evaluated the peripheral hearing and central auditory processing abilities in Indian adolescent girls with iron deficiency anemia (IDA). Method The participants consisted of 75 adolescent girls with IDA, 50 adolescent girls without IDA, and 50 adolescent boys without IDA. Participants underwent a test battery to evaluate auditory processing and peripheral hearing assessment. In this study, central auditory processing abilities were assessed using Speech Perception in Noise test in Kannada (SPIN-K) and quick speech perception in noise tests in Kannada, dichotic consonant–vowel test, gap detection threshold (GDT), and auditory digit sequencing and auditory digit span tests. Results Results showed that the hearing thresholds at extremely low and high frequencies (250 and 8000 Hz), although within clinically normal limits, were poorer in girls with IDA than in the control groups. Also, girls with IDA performed poorly in SPIN-K of the right ear, GDT, and auditory backward digit span tests. Conclusion These subtle auditory deficiencies may be attributed to the compromised blood supply to the central auditory nervous system, as observed in the current study.


2021 ◽  
Vol 12 ◽  
Author(s):  
Beula M. Magimairaj ◽  
Naveen K. Nagaraj ◽  
Craig A. Champlin ◽  
Linda K. Thibodeau ◽  
Diane F. Loeb ◽  
...  

We examined the relative contribution of auditory processing abilities (tone perception and speech perception in noise) after controlling for short-term memory capacity and vocabulary, to narrative language comprehension in children with developmental language disorder. Two hundred and sixteen children with developmental language disorder, ages 6 to 9 years (Mean = 7; 6), were administered multiple measures. The dependent variable was children's score on the narrative comprehension scale of the Test of Narrative Language. Predictors were auditory processing abilities, phonological short-term memory capacity, and language (vocabulary) factors, with age, speech perception in quiet, and non-verbal IQ as covariates. Results showed that narrative comprehension was positively correlated with the majority of the predictors. Regression analysis suggested that speech perception in noise contributed uniquely to narrative comprehension in children with developmental language disorder, over and above all other predictors; however, tone perception tasks failed to explain unique variance. The relative importance of speech perception in noise over tone-perception measures for language comprehension reinforces the need for the assessment and management of listening in noise deficits and makes a compelling case for the functional implications of complex listening situations for children with developmental language disorder.


2018 ◽  
Vol 364 ◽  
pp. 142-151 ◽  
Author(s):  
Hannah Guest ◽  
Kevin J. Munro ◽  
Garreth Prendergast ◽  
Rebecca E. Millman ◽  
Christopher J. Plack

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