Auditory brainstem response and late latency response in individuals with tinnitus having normal hearing (Record no. 17928)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02475caa a2200205 4500 |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER | |
| International Standard Serial Number | 2186-361X |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Sreeraj Konadath |
| 245 #0 - TITLE STATEMENT | |
| Title | Auditory brainstem response and late latency response in individuals with tinnitus having normal hearing |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Date of publication, distribution, etc. | 2016 |
| 270 ## - ADDRESS | |
| Address | Department of Audiology, All India Institute of Speech and Hearing, Mysuru, Karnataka State, India. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 262-268 |
| 490 ## - SERIES STATEMENT | |
| Volume/sequential designation | Volume 5 Issue 4 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Tinnitus is a commonly encountered complaint in routine audiology practice. The pathophysiology and exact generation site of tinnitus is not precisely established. Auditory brainstem response (ABR) and late latency response (LLR) findings in individuals with tinnitus show mixed results in the literature. Majority of studies have focused on individuals having tinnitus with peripheral hearing loss. The present study explores ABR and LLR characteristics among tinnitus patients with normal audiometric presentation; with no direct indication of any cochlear lesion. This study aims at characterizing the ABR and LLR findings in individuals with tinnitus having normal audiometric presentation. ABR and LLR waveform characteristics were recorded and compared between participants with tinnitus (Group 1) and those without tinnitus (Group 2). The ABR analysis indicated no significant differences in latency and amplitude between Groups 1 and 2. However, patients with tinnitus showed abnormally reduced absolute amplitudes of peaks I and V. LLR analysis indicated no significant differences in latency and amplitude between Groups 1 and 2 except enhanced amplitude of P1. The reduced amplitude of peaks I and V along with normal absolute latencies of peaks I, III and V indicate that the origin of tinnitus is possibly due to reduced excitation of auditory nerve fibres arising from a peripheral hearing loss beyond 8 kHz. The P1 amplitude enhancement could be attributed to mechanism explaining central gain model; which suggests that central auditory structures recalibrates the mean firing rate, considering the reduced output from sensory structures, generating neural noise perceived as tinnitus |
| 653 ## - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Auditory brainstem responses, late latency response, tinnitus, central gain mechanism |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Puttabasappa Manjula |
| 773 ## - HOST ITEM ENTRY | |
| Main entry heading | Intractable & rare diseases research |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://doi.org/10.5582/irdr.2016.01053 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Faculty Publications |
| -- | FJAS |
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