Auditory distraction transmitted by a cochlear implant alters allocation of attentional resources

Frontiers in Neuroscience
Mareike FinkeAndreas Büchner

Abstract

Cochlear implants (CIs) are auditory prostheses which restore hearing via electrical stimulation of the auditory nerve. The successful adaptation of auditory cognition to the CI input depends to a substantial degree on individual factors. We pursued an electrophysiological approach toward an analysis of cortical responses that reflect perceptual processing stages and higher-level responses to CI input. Performance and event-related potentials on two cross-modal discrimination-following-distraction (DFD) tasks from CI users and normal-hearing (NH) individuals were compared. The visual-auditory distraction task combined visual distraction with following auditory discrimination performance. Here, we observed similar cortical responses to visual distractors (Novelty-N2) and slowed, less accurate auditory discrimination performance in CI users when compared to NH individuals. Conversely, the auditory-visual distraction task was used to combine auditory distraction with visual discrimination performance. In this task we found attenuated cortical responses to auditory distractors (Novelty-P3), slowed visual discrimination performance, and attenuated cortical P3-responses to visual targets in CI users compared to NH individuals. These ...Continue Reading

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Citations

Oct 28, 2016·Ear and Hearing·Mareike FinkeAndreas Büchner
Mar 27, 2021·The Journal of the Acoustical Society of America·Brittany N JaekelMatthew J Goupell
Jun 15, 2021·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Irina SchierholzAndreas Büchner

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Methods Mentioned

BETA
cochlear implant
PCA

Software Mentioned

Neuroscan
CURRY Scan 7 Neuroimaging Suite
SHINE Toolbox
Matlab

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