Accession Number:

AD1094820

Title:

Diagnosing Contributions of Sensory and Cognitive Deficits to Hearing Dysfunction in Blast-Exposed/TBI Service Members

Descriptive Note:

Technical Report,15 Sep 2018,14 Sep 2019

Corporate Author:

Trustees of Boston University Boston United States

Report Date:

2019-10-01

Pagination or Media Count:

18.0

Abstract:

Year 4 of the project was a continuation of Year 3s goals of increasing the number of study participants for the blast exposed group. At the conclusion of Year 4 we have consented 130 88 male potential study candidates, of which 93 57 male were eligible for full participation. As of the writing of this report, we currently have76 subjects 59 controls and 17 blast exposed who have participated in the auditoryASA and visual VSA selective attentionfrequency following response tasks. Preliminary results show all subjects perform well in the ASA and VSA tasks. Audiological results high-frequency thresholds and DPOAEs show evidence of sub-clinical hearing loss and cochlear dysfunction in the blast-exposed. Although there is some evidence to suggest delayed cognitive processing speed in blast subjects, the results suggest compromised auditory peripheral processing is primarily responsible for reported problems with speech comprehension in noisy and crowded environments in blast exposed military service members.

Subject Categories:

  • Medicine and Medical Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE