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The Impact of Degree of Hearing Loss on Auditory Brainstem Response Predictions of Behavioral Thresholds

Contributor(s): Ryan W. McCreery.
Material type: materialTypeLabelArticleSubject(s): Auditory brainstem response | Hearing assessment | Visual reinforcement audiometry | Correction factors | Behavioral audiometry | Children | Conditioned play audiometryOnline resources: Click here to access online In: EAR & HEARING, VOL. XX, NO. X, XXX–XXXAbstract: Objectives: Diagnosis of hearing loss and prescription of amplification for infants and young children require accurate estimates of ear- and frequency-specific behavioral thresholds based on auditory brainstem response (ABR) measurements. Although the overall relationship between ABR and behavioral thresholds has been demonstrated, the agreement is imperfect, and the accuracy of predictions of behavioral threshold based on ABR may depend on degree of hearing loss. Behavioral thresholds are lower than ABR thresholds, at least in part due to differences in calibration interacting with the effects of temporal integration, which are manifest in behavioral measurements but not ABR measurements and depend on behavioral threshold. Listeners with sensory hearing loss exhibit reduced or absent temporal integration, which could impact the relationship between ABR and behavioral thresholds as degree of hearing loss increases. The present study evaluated the relationship between ABR and behavioral thresholds in infants and children over a range of hearing thresholds, and tested an approach for adjusting the correction factor based on degree of hearing loss as estimated by ABR measurements.
List(s) this item appears in: Hearing Loss - Journal artices
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Objectives: Diagnosis of hearing loss and prescription of amplification<br /> for infants and young children require accurate estimates of ear- and<br /> frequency-specific behavioral thresholds based on auditory brainstem<br /> response (ABR) measurements. Although the overall relationship between<br /> ABR and behavioral thresholds has been demonstrated, the agreement is<br /> imperfect, and the accuracy of predictions of behavioral threshold based<br /> on ABR may depend on degree of hearing loss. Behavioral thresholds<br /> are lower than ABR thresholds, at least in part due to differences in<br /> calibration interacting with the effects of temporal integration, which are<br /> manifest in behavioral measurements but not ABR measurements and<br /> depend on behavioral threshold. Listeners with sensory hearing loss<br /> exhibit reduced or absent temporal integration, which could impact the<br /> relationship between ABR and behavioral thresholds as degree of hearing<br /> loss increases. The present study evaluated the relationship between ABR<br /> and behavioral thresholds in infants and children over a range of hearing<br /> thresholds, and tested an approach for adjusting the correction factor<br /> based on degree of hearing loss as estimated by ABR measurements.

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