Comodulation masking release effect in children with and without dyslexia

Authors

  • Sovon Dhara iHEAR, Jadavpur, Kolkata, West Bengal, India
  • Indranil Chatterjee Department of Audiology and Speech-Language Pathology, AYJNISHD, Kolkata, West Bengal, India
  • Himansu Kumar Department of Audiology and Speech-Language Pathology, AYJNISHD, Kolkata, West Bengal, India
  • Susmi Pani Department of Audiology and Speech-Language Pathology, AYJNISHD, Kolkata, West Bengal, India

DOI:

https://doi.org/10.18203/issn.2454-5929.ijohns20203199

Keywords:

Comodulation masking release, Masking, Dyslexia, Noise, Auditory performance

Abstract

Background: Speech recognition in a modulating noise background can be facilitated by a process attributable to comodulation masking release (CMR). CMR is usually assumed to depend on comparisons of the outputs of different auditory filters. There was an immense importance to study to find the CMR effect in children with and without dyslexia.

Methods: The study was to find the CMR effect in children with and without dyslexia. The current research was carried out through five steps i.e. auditory attention task stimuli preparation, auditory performance test, CMR stimuli preparation, CMR task and statistical analysis. Through these processes for measuring the CMR was done for the children with and without dyslexia. All the data were tabulated and statistically computed for the analysis of the data. SPSS software version 16 was used for the statistical analysis of the data.  

Results: Independent t-test was used for the statistical analysis while the comparison between groups. Paired t- test was used for the statistical analysis while the comparison within the group at 95% confidence interval. These results indicated that the amount effect of CMR is greater in children with dyslexia. There was not a significant difference of CMR between the children with and without dyslexia to the effect of CMR was not significantly different between the ears in children without dyslexia and with dyslexia.

Conclusions: The present study indicates that children with dyslexia have selective inability to use the temporal and spectral cues necessary for signal extraction in CMR.

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Author Biographies

Sovon Dhara, iHEAR, Jadavpur, Kolkata, West Bengal, India

BASLP in audiology and speech pathology

Indranil Chatterjee, Department of Audiology and Speech-Language Pathology, AYJNISHD, Kolkata, West Bengal, India

Lecturer

Himansu Kumar, Department of Audiology and Speech-Language Pathology, AYJNISHD, Kolkata, West Bengal, India

Lecturer

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Published

2020-07-22

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Section

Original Research Articles