Clinical programming can limit access to binaural cues in children with bilateral cochlear implants

IF 3.7 3区医学 Q1 CLINICAL NEUROLOGY

Clinical Neurophysiology Pub Date : 2025-03-10 DOI:10.1016/j.clinph.2025.02.271

Angela L. Fung , Alan W. Blakeman , Robel Z. Alemu , Jaina Negandhi , Sharon L. Cushing , Blake C. Papsin , Karen A. Gordon

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引用次数: 0

Abstract

Objective

In children with bilateral cochlear implants(CIs): 1) quantify cortical access and sensitivity to inter-aural level differences(ILDs); 2) determine if cortical ILD detection predicts ILD perception; and 3) assess demographic and clinical factors that could limit ILD access.

Methods

Cortical detection responses evoked by ILD changes were measured in 22/24 children with bilateral CIs(7 female) using their clinically programmed devices and in 8 children(3 female) with normal hearing. Behavioral lateralization(left vs right perception) to ILDs was also measured.

Results

Increased cortical sensitivity(amplitude) to ILD changes did not predict more accurate behavioral perception; rather children with CIs were able to lateralize ILDs with fair accuracy but with increased cognitive effort(reaction times) compared to normal hearing children (p = 0.0004, Cohen’s d = 1.17). While demographic factors did not significantly contribute to response measures, symmetry of programmed levels in the left and right CIs predicted better cortical and behavioral sensitivity to ILDs (ps < 0.05).

Conclusions

the developing auditory system can detect ILD cues when provided with bilateral cochlear implants; however, this access can be altered by programming and may not translate to normal binaural processing.

Significance

There is potential for clinical programming to improve spatial hearing in children with bilateral CIs.

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来源期刊

Clinical Neurophysiology 医学-临床神经学

CiteScore

8.70

自引率

6.40%

发文量

932

审稿时长

59 days

期刊介绍： As of January 1999, The journal Electroencephalography and Clinical Neurophysiology, and its two sections Electromyography and Motor Control and Evoked Potentials have amalgamated to become this journal - Clinical Neurophysiology. Clinical Neurophysiology is the official journal of the International Federation of Clinical Neurophysiology, the Brazilian Society of Clinical Neurophysiology, the Czech Society of Clinical Neurophysiology, the Italian Clinical Neurophysiology Society and the International Society of Intraoperative Neurophysiology.The journal is dedicated to fostering research and disseminating information on all aspects of both normal and abnormal functioning of the nervous system. The key aim of the publication is to disseminate scholarly reports on the pathophysiology underlying diseases of the central and peripheral nervous system of human patients. Clinical trials that use neurophysiological measures to document change are encouraged, as are manuscripts reporting data on integrated neuroimaging of central nervous function including, but not limited to, functional MRI, MEG, EEG, PET and other neuroimaging modalities.