Detection Rates of Cortical Auditory Evoked Potentials at Different Sensation Levels in Infants with Sensory/Neural Hearing Loss and Auditory Neuropathy Spectrum Disorder
This study involved retrospective collection of CAEP, hearing threshold, and hearing aid gain data to investigate the relationship between stimulus audibility and CAEP detection rates. The results demonstrate that increases in stimulus audibility result in an increase in detection rate. For the same range of sensation levels, there was no difference in the detection rates between infants with SNHL and ANSD.[...]Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals:Table of contents | Abstract | Full text (Source: Seminars in Hearing)
Source: Seminars in Hearing - February 4, 2016 Category: Audiology Authors: Gardner-Berry, KirstyChang, HsiuwenChing, Teresa Y. C.Hou, Sanna Source Type: research
Clinical Experience of Using Cortical Auditory Evoked Potentials in the Treatment of Infant Hearing Loss in Australia
This article presents the clinical protocol that is currently being used within Australian Hearing for infant hearing aid evaluation using cortical auditory evoked potentials (CAEPs). CAEP testing is performed in the free field at two stimulus levels (65 dB sound pressure level [SPL], followed by 55 or 75 dB SPL) using three brief frequency-distinct speech sounds /m/, /ɡ/, and /t/, within a standard audiological appointment of up to 90 minutes. CAEP results are used to check or guide modifications of hearing aid fittings or to confirm unaided hearing capability. A retrospective review of 83 client files evaluated whether ...
Source: Seminars in Hearing - February 4, 2016 Category: Audiology Authors: Punch, SimoneVan Dun, BramKing, AlisonCarter, LyndalPearce, Wendy Source Type: research
Cortical Auditory Evoked Potentials Reveal Changes in Audibility with Nonlinear Frequency Compression in Hearing Aids for Children: Clinical Implications
This article provides first a brief overview of reports on the use of CAEPs for evaluation of hearing aids. Second, a study that measured CAEPs to evaluate nonlinear frequency compression (NLFC) in hearing aids for 27 children (between 6.1 and 16.8 years old) who have mild to severe hearing loss is reported. There was no significant difference in aided sensation level or the detection of CAEPs for /g/ between NLFC on and off conditions. The activation of NLFC was associated with a significant increase in aided sensation levels for /t/ and /s/. It also was associated with an increase in detection of CAEPs for /t/ and /s/. T...
Source: Seminars in Hearing - February 4, 2016 Category: Audiology Authors: Ching, Teresa Y. C.Zhang, Vicky W.Hou, SannaVan Buynder, Patricia Source Type: research
Cortical Auditory Evoked Potentials in (Un)aided Normal-Hearing and Hearing-Impaired Adults
This study investigated this difference and the effects of stimulus signal-to-noise ratio (SNR) and audibility on the CAEP amplitude in a population with hearing loss. Twelve normal-hearing participants and 12 participants with a hearing loss participated in this study. Three speech sounds—/m/, /g/, and /t/—were presented in the free field. Unaided stimuli were presented at 55, 65, and 75 dB sound pressure level (SPL) and aided stimuli at 55 dB SPL with three different gains in steps of 10 dB. CAEPs were recorded and their amplitudes analyzed. Stimulus SNRs and audibility were determined. No significant effect of stimu...
Source: Seminars in Hearing - February 4, 2016 Category: Audiology Authors: Van Dun, BramKania, AnnaDillon, Harvey Source Type: research
Summary of the N1-P2 Cortical Auditory Evoked Potential to Estimate the Auditory Threshold in Adults
This article introduces the cortical auditory evoked potential (CAEP) and describes the use of the N1-P2 response complex as an objective predictor of hearing threshold in adults and older children. The generators of the CAEP are discussed together with issues of maturation, subject factors, and stimuli and recording parameters for use in the clinic. The basic methods for response identification are outlined and suggestions are made for determining the CAEP threshold. Clinical applications are introduced and the accuracy of the CAEP as an estimator of hearing threshold is given. Finally, a case study provides an example of...
Source: Seminars in Hearing - February 4, 2016 Category: Audiology Authors: Lightfoot, Guy Source Type: research
How does Auditory Training Work? Joined up Thinking and Listening
Semin Hear 2015; 36: 237-237DOI: 10.1055/s-0035-1568985Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals:Table of contents | Full text (Source: Seminars in Hearing)
Source: Seminars in Hearing - November 12, 2015 Category: Audiology Authors: Ferguson, MelanieHenshaw, Helen Tags: Errata Source Type: research
