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Volume 20, Issue 2 (June 2022)
Iranian Rehabilitation Journal 2022, 20(2): 185-198 |
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Jalilzadeh Afshari P, Lotfi Y, Moossavi A, Bakhshi E, Sadjedi H. Auditory Spectro-Temporal Modulation Training in Children With Auditory Processing Disorder. Iranian Rehabilitation Journal 2022; 20 (2) :185-198
URL: http://irj.uswr.ac.ir/article-1-1733-en.html
URL: http://irj.uswr.ac.ir/article-1-1733-en.html
Parisa Jalilzadeh Afshari * 
1, Younes Lotfi1 , Abdollah Moossavi2 , Enayatollah Bakhshi3 , Hamed Sadjedi4
1, Younes Lotfi1 , Abdollah Moossavi2 , Enayatollah Bakhshi3 , Hamed Sadjedi4
1- Department of Audiology, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
2- Department of Otolaryngology and Head and Neck Surgery, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
3- Department of Biostatistics, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
4- Department of Electrical Engineering, Faculty of Engineering, Shahed University, Tehran, Iran.
2- Department of Otolaryngology and Head and Neck Surgery, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
3- Department of Biostatistics, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
4- Department of Electrical Engineering, Faculty of Engineering, Shahed University, Tehran, Iran.
Abstract: (2225 Views)
Objectives: Auditory processing disorder (APD) is due to the deficits in perceptual processing of acoustic information in the auditory system, characterized by poor speech perception of noise, regardless of normal hearing. The variability in speech function of APD children can be partly explained by changes in the encoding of spectro-temporal modulations (STMs) which have been overlooked, despite their significance. Given that enhancing STM sensitivity and its processing can be an appropriate way to improve the listener’s ability to retrieve and integrate speech segments covered by noise, we decided to evaluate the effects of STM-based auditory training on speech perception in noise and the reliability of this training in children with APD.
Methods: Thirty-five children with APD (8-12 years old) were randomly divided into the training (n=17) and control groups (n=18) to evaluate the effectiveness and reliability of STM training on speech in noise perception. The intervention group was trained to detect STM by 120 trials every day for ten days. The STM detection thresholds and speech perception in noise were evaluated before and immediately after the finalization of formal training sessions in both groups. To address the training reliability, the tests were repeated one month after practice in the training group.
Results: Following the completion of STM auditory training, the trained APD children improved notably in STM detection tasks and speech in noise tests (P<0.05). The post-training progress of STM detection thresholds and consonant-vowel in the noise test was preserved for one month after training (P>0.05), but the word in the noise test, especially in the right ear, was not retained (P<0.05).
Discussion: Auditory spectro-temporal modulation training can lead to better processing of STM modulation. Its effects can be generalized to higher-order processing, such as speech perception in noise. Auditory training based on STM processing enhancement can play an essential role in improving speech comprehension in the noise abilities of children with APD.
Methods: Thirty-five children with APD (8-12 years old) were randomly divided into the training (n=17) and control groups (n=18) to evaluate the effectiveness and reliability of STM training on speech in noise perception. The intervention group was trained to detect STM by 120 trials every day for ten days. The STM detection thresholds and speech perception in noise were evaluated before and immediately after the finalization of formal training sessions in both groups. To address the training reliability, the tests were repeated one month after practice in the training group.
Results: Following the completion of STM auditory training, the trained APD children improved notably in STM detection tasks and speech in noise tests (P<0.05). The post-training progress of STM detection thresholds and consonant-vowel in the noise test was preserved for one month after training (P>0.05), but the word in the noise test, especially in the right ear, was not retained (P<0.05).
Discussion: Auditory spectro-temporal modulation training can lead to better processing of STM modulation. Its effects can be generalized to higher-order processing, such as speech perception in noise. Auditory training based on STM processing enhancement can play an essential role in improving speech comprehension in the noise abilities of children with APD.
Keywords: Auditory processing disorder, Auditory training, Spectro-temporal modulation, Speech perception in noise
Article type: Original Research Articles |
Subject:
Audiology
Received: 2021/07/24 | Accepted: 2021/08/16 | Published: 2022/06/1
Received: 2021/07/24 | Accepted: 2021/08/16 | Published: 2022/06/1
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