Musical training enhances neural processing of comodulation masking release in the auditory brainstem

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Soheila Rostami (1), Abdollah Moossavi (2*)

1 Department of Audiology, Faculty of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran, Islamic Republic of.
2 Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran, Islamic Republic of.
(*) Corresponding Author:
Abdollah Moossavi
moossavi.a@iums.ac.ir

Abstract

Musical training strengthens segregation the target signal from background noise. Musicians have enhanced stream segregation, which can be considered a process similar to comodulation masking release. In the current study, we surveyed psychoacoustical comodulation masking release in musicians and non-musicians. We then recorded the brainstem responses to complex stimuli in comodulated and unmodulated maskers to investigate the effect of musical training on the neural representation of comodulation masking release for the first time. The musicians showed significantly greater amplitudes and earlier brainstem response timing for stimulus in the presence of comodulated maskers than nonmusicians. In agreement with the results of psychoacoustical experiment, musicians showed greater comodulation masking release than non-musicians. These results reveal a physiological explanation for behavioral enhancement of comodulation masking release and stream segregation in musicians.

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How to Cite
Rostami, S., & Moossavi, A. (2017). Musical training enhances neural processing of comodulation masking release in the auditory brainstem. Audiology Research, 7(2). https://doi.org/10.4081/audiores.2017.185
Author Biographies

Soheila Rostami, Department of Audiology, Faculty of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran

PhD Candidate in Audiology, Department of Audiology, Faculty of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran

Abdollah Moossavi, Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, Iran University of Medical Sciences, Tehran

Associate professor, Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, Iran University of Medical Sciences