Effect of Blast Injury on Auditory Localization in Military Service Members.

Ear and Hearing
Lina R KubliJerry Northern

Abstract

Among the many advantages of binaural hearing are the abilities to localize sounds in space and to attend to one sound in the presence of many sounds. Binaural hearing provides benefits for all listeners, but it may be especially critical for military personnel who must maintain situational awareness in complex tactical environments with multiple speech and noise sources. There is concern that Military Service Members who have been exposed to one or more high-intensity blasts during their tour of duty may have difficulty with binaural and spatial ability due to degradation in auditory and cognitive processes. The primary objective of this study was to assess the ability of blast-exposed Military Service Members to localize speech sounds in quiet and in multisource environments with one or two competing talkers. Participants were presented with one, two, or three topic-related (e.g., sports, food, travel) sentences under headphones and required to attend to, and then locate the source of, the sentence pertaining to a prespecified target topic within a virtual space. The listener's head position was monitored by a head-mounted tracking device that continuously updated the apparent spatial location of the target and competing spee...Continue Reading

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Citations

Jan 31, 2019·Journal of Neurotrauma·Douglas BrungartDanielle Zion
Mar 13, 2020·Journal of Speech, Language, and Hearing Research : JSLHR·Victoria TepeLisa Guillory
Dec 5, 2019·The Journal of the Acoustical Society of America·Quintin A HechtDouglas S Brungart
Dec 31, 2019·Ear and Hearing·Philip D Littlefield, Douglas S Brungart
Sep 2, 2021·Journal of Neurophysiology·Emily X HanEdward L Bartlett

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