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Extended reliability measures for the fast method of Schroeder-phase masking

Rahmat, Sarah and Amirullah, Nur Afiqah and O’Beirne, Greg A. (2016) Extended reliability measures for the fast method of Schroeder-phase masking. The International Medical Journal Malaysia, 15 (December (supplement issue)). p. 6. E-ISSN 1823-4631

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Abstract

Introduction: Schroeder-phase masking test has been found to be highly useful in providing information on the cochlea phase response that was not previously discovered. Conventional Three Alternative Forced Choice (3AFC) method of conducting Schroeder phase masking takes a long testing time (around 45 minutes) and could possibly limit the valuable information that may be gathered from this test. A faster Schroeder-phase masking method which is able to cut down almost 80% of the testing time has been developed, and has been proven reliable for normal hearing population. This study aims to extend the reliability measures to hearing impaired population. Methods: This is an observational study involving 10 normal hearing and 6 sensorineural hearing loss subjects. Schroeder phase masking functions were measured at 500 Hz, 1 kHz and 2 kHz (75 dB A) using the conventional and fast methods to find the agreement between two methods. The fast method was measured in two sessions to find the test–retest reliability. Results: The fast method showed; i) good agreement with the conventional 3 AFC method-no significant difference of masked thresholds between two methods at majority of the tested conditions (p>0.05), ii) good test retest reliability- no significant difference of masked thresholds between two sessions (p>0.05). Conclusions: Proven to be a reliable method in both normal hearing and hearing impaired population, the faster method could potentially facilitate more Schroeder phase masking experiments in investigating the fundamental of sound processing and auditory perception.

Item Type: Article (Journal)
Additional Information: 6474/54697
Uncontrolled Keywords: Cochlear phase response; Psychoacoustic; Fast method; Schroeder phase masking
Subjects: Q Science > Q Science (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Allied Health Sciences > Department of Audiology and Speech-Language Pathology
Depositing User: Sarah Rahmat
Date Deposited: 01 Feb 2017 10:37
Last Modified: 17 Jul 2017 14:56
URI: http://irep.iium.edu.my/id/eprint/54697

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