A Study of Methods Used to Enhance Wave I in the Auditory Brain Stem Response

1982 ◽  
Vol 90 (5) ◽  
pp. 635-640 ◽  
Author(s):  
Roger A. Ruth ◽  
Debra L. Hildebrand ◽  
Robert W. Cantrell
Keyword(s):  
Brain Stem ◽  
Reference Electrode ◽  
Electrode Array ◽  
Response Measurement ◽  
Auditory Brain Stem Response ◽  
Response Acquisition ◽  
Auditory Brain Stem ◽  
Band Pass ◽  
Neurologically Normal ◽  
Brain Stem Response

Auditory brain stem responses (ABR) were recorded in 15 audiometrically and neurologically normal adult subjects. The purpose of the study was to investigate various aspects of stimulus composition (intensity, click rate, and polarity) and response measurement parameters (band-pass filtering and electrode linkage) that might serve to enhance detectability of wave I in the ABR. Amplitude of wave I was significantly enhanced by an increase in intensity, a decrease in click rate, and use of a negative (rarefaction) polarity click. Amplitude of wave I was not significantly influenced by bandwidth of the response filter or by a horizontal (mastoid-to-mastoid) electrode linkage. Use of simultaneous response acquisition from an ipsilateral and contralateral reference electrode array did aid in the detection or visualization of wave I, particularly for lower stimulus intensity levels or faster click rates.

The Fetal Auditory Brain Stem Response: Serial Measurements at Two Stimulus Intensities

1985 ◽  
Vol 93 (6) ◽  
pp. 759-764 ◽  
Author(s):  
James R. Woods ◽  
Mark A. Plessinger
Keyword(s):  
Brain Stem ◽  
Sound Pressure ◽  
Linear Regression Analysis ◽  
Reference Electrode ◽  
Active Electrode ◽  
Auditory Brain Stem Response ◽  
Auditory Brain Stem ◽  
Predicted Values ◽  
Serial Measurements ◽  
Brain Stem Response

Eleven fetal lambs were tested for auditory brain stem responses (ABRs) at 105 and 90 db sound pressure level from 110 to 116 days until 133 days gestation. ABRs were elicited in response to 1200 clicks, presented at 16 clicks/sec, from a hearing aid receiver secured in the fetal external ear canal and recorded from subdermal stainless steel electrodes at the vertex (active electrode) and anterior pinna (reference electrode). Six term newborn lambs were tested similarly for ABR comparison. No fetal ABRs appeared before 117 days gestation. Thereafter, the ABRs exhibited decreasing peak latencies with increasing stimulus intensity and fetal age. Newborn ABR latency measurements were compared with predicted newborn values generated from linear regression analysis of fetal data. Newborn latencies to waves I and II approximated predicted values. Newborn latencies to waves III, IV, and V were much shorter than predicted, suggesting rapid maturation of higher brain stem and midbrain neurogenerators during late fetal development.

scholarly journals Can auditory brain stem response accurately reflect the cochlear function?

2020 ◽  
Vol 124 (6) ◽  
pp. 1667-1675
Author(s):  
Dalian Ding ◽  
Jianhui Zhang ◽  
Wenjuan Li ◽  
Dong Li ◽  
Jintao Yu ◽  
...  
Keyword(s):  
Brain Stem ◽  
Damage Model ◽  
Compound Action Potential ◽  
Cochlear Function ◽  
Auditory Brain Stem Response ◽  
Threshold Difference ◽  
Auditory Brain Stem ◽  
Cochlear Damage ◽  
Brain Stem Response ◽  
Compound Action

Auditory brain stem response (ABR) is more commonly used to evaluate cochlear lesions than cochlear compound action potential (CAP). In a noise-induced cochlear damage model, we found that the reduced CAP and enhanced ABR caused the threshold difference. In a unilateral cochlear destruction model, a shadow curve of the ABR from the contralateral healthy ear masked the hearing loss in the destroyed ear.

Improving the Frequency Specificity of the Auditory Brain Stem Response

1992 ◽  
Vol 13 (4) ◽  
pp. 223-227 ◽  
Author(s):  
Therese C. Robier ◽  
David A. Fabry ◽  
Marjorie R. Leek ◽  
W. Van Summers
Keyword(s):  
Brain Stem ◽  
Auditory Brain Stem Response ◽  
Frequency Specificity ◽  
Auditory Brain Stem ◽  
Brain Stem Response
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