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Neurophysiological Changes Underlying Inhibitory Control in Mild Age-Related Hearing Loss

Authors:
Shraddha Shende
Raksha Mudar

Keywords: Age-related hearing loss; inhibitory control; event- related potentials; event-related spectral perturbations; Go/NoGo tasks.

Abstract:
Emerging evidence suggests behavioral alterations in inhibitory control in older adults with mild Age-Related Hearing Loss (ARHL). Whether there are underlying alterations in the neurophysiological mechanisms linked to these behavioral changes remains unexplored. The current study examined Event-Related Potentials (ERPs) and Event-Related Spectral Perturbations (ERSPs) linked to two Go/NoGo tasks (Single-Car/Object-Animal) in 17 older adults with unaided mild ARHL and 25 normal hearing controls. Group differences in N2 and P3 (ERPs) latency and amplitude and theta and alpha (ERSPs) power were examined in addition to their association with speech-in-noise recognition. Findings revealed differences in ERPs and ERSPs for the NoGo versus Go trials in the two groups. The mild ARHL group showed longer NoGo N2 latency relative to Go N2 latency on the Single-Car task, but similar findings were not observed within the control group. The control group showed higher P3 amplitude and greater alpha desynchronization for NoGo versus Go trials on the Object-Animal task, but this differentiation was lacking in the hearing loss group. These findings suggest alterations in neurophysiological mechanisms underlying inhibitory control in unaided mild ARHL. Additionally, poorer recognition of speech-in-noise in the hearing loss group was related to higher P3 amplitude for Go trials on the Object-Animal task, with a similar trend observed for NoGo trials, suggesting that those with worse central hearing exert greater neural effort on inhibitory control tasks. The study findings add to the literature on the impact of ARHL on cognition and its association to changes in complex listening functions.

Pages: 1 to 3

Copyright: Copyright (c) IARIA, 2024

Publication date: March 10, 2024

Published in: conference

ISSN: 2519-8653

ISBN: 978-1-68558-127-5

Location: Athens, Greece

Dates: from March 10, 2024 to March 14, 2024