Towards an objective test of chronic tinnitus: Properties of auditory cortical potentials evoked by silent gaps in tinnitus-like sounds (Record no. 2879)
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fixed length control field | 02135nam a22001817a 4500 |
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control field | OSt |
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control field | 20180608141900.0 |
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Transcribing agency | National Acoustics Laboratories |
100 ## - MAIN ENTRY--PERSONAL NAME | |
Personal name | Brandon, Paul T |
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Title | Towards an objective test of chronic tinnitus: Properties of auditory cortical potentials evoked by silent gaps in tinnitus-like sounds |
520 3# - SUMMARY, ETC. | |
Summary, etc | A common method designed to identify if an animal hears tinnitus assumes that tinnitus “fills-in” silent<br/>gaps in background sound. This phenomenon has not been reliably demonstrated in humans. One test of<br/>the gap-filling hypothesis would be to determine if gap-evoked cortical potentials are absent or attenuated<br/>when measured within background sound matched to the tinnitus sensation. However the tinnitus<br/>sensation is usually of low intensity and of high frequency, and it is unknown if cortical responses can be<br/>measured with such “weak” stimulus properties. Therefore the aim of the present study was to test the<br/>plausibility of observing these responses in the EEG in humans without tinnitus. Twelve non-tinnitus<br/>participants heard narrowband noises centered at sound frequencies of 5 or 10 kHz at sensation levels<br/>of either 5, 15, or 30 dB. Silent gaps of 20 ms duration were randomly inserted into noise stimuli, and<br/>cortical potentials evoked by these gaps were measured by 64-channel EEG. Gap-evoked cortical responses<br/>were statistically identifiable in all conditions for all but one participant. Responses were not<br/>significantly different between noise frequencies or levels. Results suggest that cortical responses can be<br/>measured when evoked by gaps in sounds that mirror acoustic properties of tinnitus. This design can<br/>validate the animal model and be used as a tinnitus diagnosis test in humans. |
700 ## - ADDED ENTRY--PERSONAL NAME | |
Personal name | Marc Schoenwiesner |
700 ## - ADDED ENTRY--PERSONAL NAME | |
Personal name | Sylvie Hebert |
773 0# - HOST ITEM ENTRY | |
Relationship information | April 2018 |
Title | Hearing Research |
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Uniform Resource Identifier | <a href="https://dspace.nal.gov.au/xmlui/bitstream/handle/123456789/905/Towards%20an%20objective%20test%20of%20chronic%20tinnitus.pdf?sequence=1&isAllowed=y">https://dspace.nal.gov.au/xmlui/bitstream/handle/123456789/905/Towards%20an%20objective%20test%20of%20chronic%20tinnitus.pdf?sequence=1&isAllowed=y</a> |
942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
Source of classification or shelving scheme | Universal Decimal Classification |
Koha item type | Journal article |
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