Cortical auditory evoked potentials as an objective measure of behavioral thresholds in cochlear implant users

被引：35

作者：

Visram, Anisa S. ^{[1
,4
]}

Innes-Brown, Hamish ^{[2
,3
]}

El-Deredy, Wael ^{[1
]}

McKay, Colette M. ^{[1
,2
,3
]}

机构：

[1] Univ Manchester, Sch Psychol Sci, Manchester M13 9PL, Lancs, England

[2] Bion Inst Australia, Oxford, England

[3] Univ Melbourne, Dept Med Bion, Melbourne, Vic 3010, Australia

[4] Betsi Cadwaladr Univ Hlth Board, Dept Audiol, Wrexham, Clwyd, Wales

来源：

HEARING RESEARCH | 2015年 / 327卷

关键词：

INDEPENDENT COMPONENT ANALYSIS; CHILDREN; PROCESSOR; DYNAMICS; INFANTS; HEARING; EAP;

D O I：

10.1016/j.heares.2015.04.012

中图分类号：

R36 [病理学]; R76 [耳鼻咽喉科学];

学科分类号：

100104 ; 100213 ;

摘要：

The aim of this study was to assess the suitability of using cortical auditory evoked potentials (CAEPs) as an objective tool for predicting behavioral hearing thresholds in cochlear implant (CI) users. Nine experienced adult CI users of Cochlear (TM) devices participated. Behavioral thresholds were measured in CI users across apical, mid and basal electrodes. CAEPs were measured for the same stimuli (50 ms pulse trains of 900-pps rate) at a range of input levels across the individual's psychophysical dynamic range (DR). Amplitude growth functions using global field power (GFP) were plotted, and from this the CAEP thresholds were extrapolated and compared to the behavioral thresholds. Increased amplitude and decreased latency of the N1-P2 response was seen with increasing input level. A strong correlation was found between CAEP and behavioral thresholds (r = 0.93), implying that the cortical response may be more useful as an objective programming tool for cochlear implants than the auditory nerve response. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：35 / 42

页数：8

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