The relationship between auditory brainstem response latencies and behavioral thresholds in normal hearing infants and adults

1994 ◽  
Vol 77 (1-2) ◽  
pp. 88-98 ◽  
Author(s):  
Lynne A. Werner ◽  
Richard C. Folsom ◽  
Lisa Rickard Mancl
Keyword(s):  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Normal Hearing ◽  
Response Latencies ◽  
Behavioral Thresholds ◽  
Brainstem Response ◽  
The Relationship

Unraveling the Mystery of Auditory Brainstem Response Corrections: The Need for Universal Standards

2017 ◽  
Vol 28 (10) ◽  
pp. 950-960 ◽  
Author(s):  
Linda W. Norrix ◽  
David Velenovsky
Keyword(s):  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Evidence Based ◽  
Test Results ◽  
Behavioral Thresholds ◽  
Hearing Thresholds ◽  
Brainstem Response ◽  
Two Measures ◽  
Impaired Children ◽  
Universal Standard

Background: The auditory brainstem response (ABR) is used to estimate behavioral hearing thresholds in infants and difficult-to-test populations. Differences between the toneburst ABR and behavioral thresholds exist making the correspondence between the two measures less than perfect. Some authors have suggested that corrections be applied to ABR thresholds to account for these differences. However, because there is no agreed upon universal standard, confusion regarding the use of corrections exists. Purpose: The primary purpose of this article is to review the reasoning behind and use of corrections when the toneburst ABR is employed to estimate behavioral hearing thresholds. We also discuss other considerations that all audiologists should be aware of when obtaining and reporting ABR test results. Results: A review of the purpose and use of corrections reveals no consensus as to whether they should be applied or which should be used. Additionally, when ABR results are adjusted, there is no agreement as to whether additional corrections for hearing loss or the age of the client are necessary. This lack of consensus can be confusing for all individuals working with hearing-impaired children and their families. Conclusions: Toneburst ABR thresholds do not perfectly align with behavioral hearing thresholds. Universal protocols for the use of corrections are needed. Additionally, evidence-based procedures must be employed to obtain valid ABRs that will accurately estimate hearing thresholds.

scholarly journals The Auditory Brainstem Response: Latencies Obtained in Children While under General Anesthesia

2012 ◽  
Vol 23 (01) ◽  
pp. 057-063 ◽  
Author(s):  
Linda W. Norrix ◽  
Stacey Trepanier ◽  
Matthew Atlas ◽  
Darlyne Kim
Keyword(s):  
General Anesthesia ◽  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Control Group ◽  
Neural Function ◽  
General Anesthetic ◽  
Response Latencies ◽  
Hearing Sensitivity ◽  
Brainstem Response ◽  
Group Delays

Background: The auditory brainstem response (ABR) test is frequently employed to estimate hearing sensitivity and assess the integrity of the ascending auditory system. In persons who cannot participate in conventional tests of hearing, a short-acting general anesthetic is used, recordings are obtained, and the results are compared with normative data. However, several factors (e.g., anesthesia, temperature changes) can contribute to delayed absolute and interpeak latencies, making it difficult to evaluate the integrity of the person's auditory brainstem function. Purpose: In this study, we investigated the latencies of ABR responses in children who received general anesthesia. Research Design: Between subject. Study Sample: Twelve children between the ages of 29 and 52 mo, most of whom exhibited a developmental delay but normal peripheral auditory function, comprised the anesthesia group. Twelve participants between the ages of 13 and 26 yr with normal hearing thresholds comprised the control group. Data Collection and Analysis: ABRs from a single ear from children, recorded under general anesthesia, were retrospectively analyzed and compared to those obtained from a control group with no anesthesia. ABRs were generated using 80 dB nHL rarefaction click stimuli. T-tests, corrected for alpha slippage, were employed to examine latency differences between groups. Results: There were significant delays in latencies for children evaluated under general anesthesia compared to the control group. Delays were observed for wave V and the interpeak intervals I–III, III–V, and I–V. Conclusions: Our data suggest that caution is needed in interpreting neural function from ABR data recorded while a child is under general anesthesia.

Normal Brief-Tone Bone-Conduction Behavioral Thresholds Using the B-71 Transducer: Three Occlusion Conditions

2003 ◽  
Vol 14 (10) ◽  
pp. 556-562 ◽  
Author(s):  
Susan A. Small ◽  
David R. Stapells
Keyword(s):  
Auditory Brainstem Response ◽  
Pure Tone ◽  
Bone Conduction ◽  
Auditory Brainstem ◽  
Behavioral Thresholds ◽  
Brainstem Response ◽  
Occlusion Effect ◽  
Response Testing ◽  
Brief Tones ◽  
Air Conduction

Behavioral thresholds were measured from 31 adults with normal hearing for 500, 1000, 2000, and 4000 Hz brief tones presented using a B-71 bone oscillator. Three occlusion conditions were assessed: ears unoccluded, one ear occluded, and both ears occluded. Mean threshold force levels were 67, 54, 49, and 41 dB re:1μN peak-to-peak equivalent in the unoccluded condition for 500, 1000, 2000, and 4000 Hz, respectively (corrected for air-conduction pure-tone thresholds). A significant occlusion effect was observed for 500 and 1000 Hz stimuli. These thresholds may be used as the 0 dB nHL (normalhearing level) for brief-tone bone-conduction stimuli for auditory brainstem response testing.

Use of Contralateral Masking in the Measurement of the Auditory Brainstem Response

1982 ◽  
Vol 25 (4) ◽  
pp. 528-535 ◽  
Author(s):  
Larry E. Humes ◽  
Marleen G. Ochs
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Auditory Brainstem Response ◽  
Mean Amplitude ◽  
Auditory Brainstem ◽  
Normal Hearing ◽  
Brainstem Response ◽  
The Mean ◽  
Intensity Functions ◽  
Contralateral Masking

In the first portion this study, the effects of two levels of contralateral masking on the auditory brainstem response (ABR) were investigated in 10 normal-hearing subjects. No significant changes were observed in the mean latency-intensity functions or the mean amplitude-intensity functions of this group of subjects when noise of various levels was added to the nontest ear. In the second portion of this study, ABRs were also recorded from the poorer ear of four subjects with a profound unilateral sensorineural hearing loss. Results from the latter group revealed a crossed-over wave V in all cases when the stimulus was delivered to the poorer ear and the nontest (better) ear was not masked. Contralateral masking obliterated this "crossed ABB" in all four unilaterally impaired subjects. These results provide support for the use of contralateral masking when recording from the poorer ear of subjects having asymmetrical hearing loss.

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