Correlation between schroeder-phase effect and electrocochleography findings

Introduction: In Schroeder-phase masking test, different auditory perception ability towards different phases of Schroeder masker is known as ‘phase effect’. Previously, the phase effect mechanism was proposed to be dominantly contributed by peripheral auditory function,mainly by outer hair cells. T...

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Main Authors:	Muhamad Azman, Solihatul Mardhiah, Rahmat, Sarah
Format:	Article
Language:	English
Published:	Kulliyyah of Medicine, IIUM Kuantan 2016
Subjects:	Q Science (General)
Online Access:	http://irep.iium.edu.my/54700/ http://irep.iium.edu.my/54700/ http://irep.iium.edu.my/54700/1/Correlation%20between%20schroeder-phase%20effect%20and%20Ecoch%20G.pdf

id	iium-54700
recordtype	eprints
spelling	iium-547002017-02-02T19:44:06Z http://irep.iium.edu.my/54700/ Correlation between schroeder-phase effect and electrocochleography findings Muhamad Azman, Solihatul Mardhiah Rahmat, Sarah Q Science (General) Introduction: In Schroeder-phase masking test, different auditory perception ability towards different phases of Schroeder masker is known as ‘phase effect’. Previously, the phase effect mechanism was proposed to be dominantly contributed by peripheral auditory function,mainly by outer hair cells. This study aims to investigate the possible involvement of central auditory function (i.e. auditory nerve) in the phase effect mechanism. Methods: Four normal hearing and four sensorineural hearing loss subjects were recruited. Schroeder-phase masking test was conducted at 500 Hz, 1 kHz, and 2 kHz (75 dB A), and phase effect was recorded. Electrocochleography (ECochG) test via tip-trode recording using 90 dBnHL tone burst at 500 Hz, 1 kHz, and 2 kHz was also conducted on the same subjects. The amplitude of three ECochG components; i) cochlear microphonic (CM) - arises from outer hair cells, ii) summating potential (SP) - arises from inner hair cells, and iii) action potential (AP)- arises from auditory nerve; were recorded. Pearson and Spearman analysis were performed to find correlation between phase effect and individual ECochG components’ amplitude. Results: Result showed no significant correlation between phase effect and all ECochG components’ amplitude at all tested frequencies with exception at 2 kHz. A significant strong correlation (p: 0.02;r: 0.81) between phase effect and action potential’s amplitude at 2 kHz was observed. Conclusions: This finding suggests that central auditory function (i.e. auditory nerve) is possibly involved in the phase effect mechanism. This finding gives new insight towards better understanding of auditory perception. Kulliyyah of Medicine, IIUM Kuantan 2016 Article PeerReviewed application/pdf en http://irep.iium.edu.my/54700/1/Correlation%20between%20schroeder-phase%20effect%20and%20Ecoch%20G.pdf Muhamad Azman, Solihatul Mardhiah and Rahmat, Sarah (2016) Correlation between schroeder-phase effect and electrocochleography findings. The International Medical Journal of Malaysia, 15. p. 7. http://iiumedic.net/imjm/v1/download/Volume%2015%20Supplement/MRS2016-ABSTRACT-BOOK-7.pdf
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Muhamad Azman, Solihatul Mardhiah Rahmat, Sarah Correlation between schroeder-phase effect and electrocochleography findings
description	Introduction: In Schroeder-phase masking test, different auditory perception ability towards different phases of Schroeder masker is known as ‘phase effect’. Previously, the phase effect mechanism was proposed to be dominantly contributed by peripheral auditory function,mainly by outer hair cells. This study aims to investigate the possible involvement of central auditory function (i.e. auditory nerve) in the phase effect mechanism. Methods: Four normal hearing and four sensorineural hearing loss subjects were recruited. Schroeder-phase masking test was conducted at 500 Hz, 1 kHz, and 2 kHz (75 dB A), and phase effect was recorded. Electrocochleography (ECochG) test via tip-trode recording using 90 dBnHL tone burst at 500 Hz, 1 kHz, and 2 kHz was also conducted on the same subjects. The amplitude of three ECochG components; i) cochlear microphonic (CM) - arises from outer hair cells, ii) summating potential (SP) - arises from inner hair cells, and iii) action potential (AP)- arises from auditory nerve; were recorded. Pearson and Spearman analysis were performed to find correlation between phase effect and individual ECochG components’ amplitude. Results: Result showed no significant correlation between phase effect and all ECochG components’ amplitude at all tested frequencies with exception at 2 kHz. A significant strong correlation (p: 0.02;r: 0.81) between phase effect and action potential’s amplitude at 2 kHz was observed. Conclusions: This finding suggests that central auditory function (i.e. auditory nerve) is possibly involved in the phase effect mechanism. This finding gives new insight towards better understanding of auditory perception.
format	Article
author	Muhamad Azman, Solihatul Mardhiah Rahmat, Sarah
author_facet	Muhamad Azman, Solihatul Mardhiah Rahmat, Sarah
author_sort	Muhamad Azman, Solihatul Mardhiah
title	Correlation between schroeder-phase effect and electrocochleography findings
title_short	Correlation between schroeder-phase effect and electrocochleography findings
title_full	Correlation between schroeder-phase effect and electrocochleography findings
title_fullStr	Correlation between schroeder-phase effect and electrocochleography findings
title_full_unstemmed	Correlation between schroeder-phase effect and electrocochleography findings
title_sort	correlation between schroeder-phase effect and electrocochleography findings
publisher	Kulliyyah of Medicine, IIUM Kuantan
publishDate	2016
url	http://irep.iium.edu.my/54700/ http://irep.iium.edu.my/54700/ http://irep.iium.edu.my/54700/1/Correlation%20between%20schroeder-phase%20effect%20and%20Ecoch%20G.pdf
first_indexed	2023-09-18T21:17:21Z
last_indexed	2023-09-18T21:17:21Z
_version_	1777411651302064128

Correlation between schroeder-phase effect and electrocochleography findings

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