Universität zu Köln

Schierholz, Irina, Schoenermark, Constanze, Ruigendijk, Esther, Kral, Andrej ORCID: 0000-0002-7762-4642, Kopp, Bruno and Buechner, Andreas (2021). An event-related brain potential study of auditory attention in cochlear implant users. Clin. Neurophysiol., 132 (9). S. 2290 - 2306. CLARE: ELSEVIER IRELAND LTD. ISSN 1872-8952

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Abstract

Objective: Cochlear implants (CIs) provide access to the auditory world for deaf individuals. We investigated whether Cls enforce attentional alterations of auditory cortical processing in post-lingually deafened CI users compared to normal-hearing (NH) controls. Methods: Event-related potentials (ERPs) were recorded in 40 post-lingually deafened CI users and in a group of 40 NH controls using an auditory three-stimulus oddball task, which included frequent standard tones (Standards) and infrequent deviant tones (Targets), as well as infrequently occurring unique sounds (Novels). Participants were exposed twice to the three-stimulus oddball task, once under the instruction to ignore the stimuli (ignore condition), and once under the instruction to respond to infrequently occurring deviant tones (attend condition). Results: The allocation of attention to auditory oddball stimuli exerted stronger effects on N1 amplitudes at posterior electrodes in response to Standards and to Targets in CI users than in NH controls. Other ERP amplitudes showed similar attentional modulations in both groups (P2 in response to Standards, N2 in response to Targets and Novels, P3 in response to Targets). We also observed a statistical trend for an attenuated attentional modulation of Novelty P3 amplitudes in CI users compared to NH controls. Conclusions: ERP correlates of enhanced CI-mediated auditory attention are confined to the latency range of the auditory NI, suggesting that enhanced attentional modulation during auditory stimulus discrimination occurs primarily in associative auditory cortices of CI users. Significance: The present ERP data support the hypothesis of attentional alterations of auditory cortical processing in CI users. These findings may be of clinical relevance for the CI rehabilitation. (C) 2021 International Federation of Clinical Neurophysiology. Published by Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schierholz, Irina UNSPECIFIED UNSPECIFIED UNSPECIFIED Schoenermark, Constanze UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruigendijk, Esther UNSPECIFIED UNSPECIFIED UNSPECIFIED Kral, Andrej UNSPECIFIED orcid.org/0000-0002-7762-4642 UNSPECIFIED Kopp, Bruno UNSPECIFIED UNSPECIFIED UNSPECIFIED Buechner, Andreas UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-582848
DOI:	10.1016/j.clinph.2021.03.055
Journal or Publication Title:	Clin. Neurophysiol.
Volume:	132
Number:	9
Page Range:	S. 2290 - 2306
Date:	2021
Publisher:	ELSEVIER IRELAND LTD
Place of Publication:	CLARE
ISSN:	1872-8952
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language EVOKED CORTICAL POTENTIALS; WORKING-MEMORY CAPACITY; SPEECH-INTELLIGIBILITY; NOVELTY DETECTION; ACOUSTIC NOVELTY; SENTENCE TEST; RECOGNITION; RESPONSES; CORTEX; ENHANCEMENT Multiple languages Clinical Neurology; Neurosciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58284