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Clinical Assessment of Tinnitus Foll...

Mann, Lauren.

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Clinical Assessment of Tinnitus Following Concussion.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Clinical Assessment of Tinnitus Following Concussion./
Author:	Mann, Lauren.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	134 p.
Notes:	Source: Dissertations Abstracts International, Volume: 83-06, Section: B.
Contained By:	Dissertations Abstracts International83-06B.
Subject:	Audiology. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28540003
ISBN:	9798496541879

Clinical Assessment of Tinnitus Following Concussion.
Mann, Lauren.

Clinical Assessment of Tinnitus Following Concussion. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 134 p.

Source: Dissertations Abstracts International, Volume: 83-06, Section: B.

Thesis (Ph.D.)--University of Kansas, 2021.

People who experience tinnitus after a concussion represent some of the most challenging clinical cases to see. However, little is known about the underlying mechanisms of this symptom. Concussion may facilitate tinnitus generation at the cortical level or may interfere with a person's ability to continue habituating to existing tinnitus related to damage in the auditory periphery. The sample described here included participants with concussions and a new onset of tinnitus, participants with concussion and no history of tinnitus, and control participants. Explanatory variables were measured for each group, and across the conditions of concussion and tinnitus. Subjective and objective central auditory tests were administered and included the Dichotic Digits Test (DDT) and a comparison of visual versus auditory-evoked event-related potentials (ERPs). Reaction time, accuracy, and ERP component amplitudes and latencies were compared. Results show that participants with tinnitus after a concussion perform similarly to controls on the DDT, whereas the concussion-only group scored significantly worse. There were no differences for reaction time or accuracy of ERP tasks in auditory or visual conditions. However, the concussion-only group presented with significantly larger P200 amplitudes for frequent auditory stimuli and smaller P300 amplitude for rare stimuli during ERP tasks. These findings do not maintain for visual ERP tasks suggesting the cortical activity related to tinnitus perception may have limited ability to identify concussion specific processing during central auditory testing.

ISBN: 9798496541879Subjects--Topical Terms:

537237
Audiology.
Subjects--Index Terms:

Concussion

Clinical Assessment of Tinnitus Following Concussion.
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500 $a Source: Dissertations Abstracts International, Volume: 83-06, Section: B.
500 $a Advisor: Brumberg, Jon.
502 $a Thesis (Ph.D.)--University of Kansas, 2021.
520 $a People who experience tinnitus after a concussion represent some of the most challenging clinical cases to see. However, little is known about the underlying mechanisms of this symptom. Concussion may facilitate tinnitus generation at the cortical level or may interfere with a person's ability to continue habituating to existing tinnitus related to damage in the auditory periphery. The sample described here included participants with concussions and a new onset of tinnitus, participants with concussion and no history of tinnitus, and control participants. Explanatory variables were measured for each group, and across the conditions of concussion and tinnitus. Subjective and objective central auditory tests were administered and included the Dichotic Digits Test (DDT) and a comparison of visual versus auditory-evoked event-related potentials (ERPs). Reaction time, accuracy, and ERP component amplitudes and latencies were compared. Results show that participants with tinnitus after a concussion perform similarly to controls on the DDT, whereas the concussion-only group scored significantly worse. There were no differences for reaction time or accuracy of ERP tasks in auditory or visual conditions. However, the concussion-only group presented with significantly larger P200 amplitudes for frequent auditory stimuli and smaller P300 amplitude for rare stimuli during ERP tasks. These findings do not maintain for visual ERP tasks suggesting the cortical activity related to tinnitus perception may have limited ability to identify concussion specific processing during central auditory testing.
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653 $a Central auditory tests
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