scholarly journals Test-Retest Reliability of Level-Specific CE-Chirp Auditory Brainstem Response in Normal-Hearing Adults

2021 ◽  
Vol 25 (1) ◽  
pp. 14-21
Author(s):  
Fatin Nabilah Jamal ◽  
Ahmad Aidil Arafat Dzulkarnain ◽  
Fatin Amira Shahrudin ◽  
Muhammad Nasrullah Marzuki
Keyword(s):  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Normal Hearing ◽  
Intra Class Correlation ◽  
Retest Reliability ◽  
Clinical Session ◽  
Brainstem Response ◽  
The Right ◽  
Test Retest Reliability ◽  
Intra Class Correlation Coefficient

Background and Objectives: There is growing interest in the use of the Level-specific (LS) CE-Chirp<sup>®</sup> stimulus in auditory brainstem response (ABR) due to its ability to produce prominent ABR waves with robust amplitudes. There are no known studies that investigate the test-retest reliability of the ABR to the LS CE-Chirp<sup>®</sup> stimulus. The present study aims to investigate the test-retest reliability of the ABR to the LS CE-Chirp<sup>®</sup> stimulus and compare its reliability with the ABR to standard click stimulus at multiple intensity levels in normal-hearing adults.Subjects and Methods: Eleven normal-hearing adults participated. The ABR test was repeated twice in the same clinical session and conducted again in another session. The ABR was acquired using both the click and LS CE-Chirp<sup>®</sup> stimuli at 4 presentation levels (80, 60, 40, and 20 dBnHL). Only the right ear was tested using the ipsilateral electrode montage. The reliability of the ABR findings (amplitudes and latencies) to the click and LS CE-Chirp<sup>®</sup> stimuli within the same clinical session and between the two clinical sessions was calculated using an intra-class correlation coefficient analysis (ICC).Results: The results showed a significant correlation of the ABR findings (amplitude and latencies) to both stimuli within the same session and between the clinical sessions. The ICC values ranged from moderate to excellent. Conclusions: The ABR results from both the LS CE-Chirp<sup>®</sup> and click stimuli were consistent and reliable over the two clinical sessions suggesting that both stimuli can be used for neurological diagnoses with the same reliability.

scholarly journals Supra-threshold auditory brainstem response amplitudes in humans: Test-retest reliability, electrode montage and noise exposure

2018 ◽  
Vol 364 ◽  
pp. 38-47 ◽  
Author(s):  
Garreth Prendergast ◽  
Wenhe Tu ◽  
Hannah Guest ◽  
Rebecca E. Millman ◽  
Karolina Kluk ◽  
...  
Keyword(s):  
Auditory Brainstem Response ◽  
Noise Exposure ◽  
Auditory Brainstem ◽  
Retest Reliability ◽  
Brainstem Response ◽  
Test Retest Reliability

scholarly journals Auditory brainstem response asymmetries in older adults: An exploratory study using click and speech stimuli

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0251287
Author(s):  
Alejandro Ianiszewski ◽  
Adrian Fuente ◽  
Jean-Pierre Gagné
Keyword(s):  
Older Adults ◽  
Young Adults ◽  
Auditory Processing ◽  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Normal Hearing ◽  
Spectral Amplitude ◽  
Speech Stimuli ◽  
Brainstem Response ◽  
The Right

Background Some evidence suggests that young adults exhibit a selective laterality of auditory brainstem response (ABR) elicited with speech stimuli. Little is known about such an auditory laterality in older adults. Objective The aim of this study was to investigate possible asymmetric auditory brainstem processing between right and left ear presentation in older adults. Methods Sixty-two older adults presenting with normal hearing thresholds according to their age and who were native speakers of Quebec French participated in this study. ABR was recorded using click and a 40-ms /da/ syllable. ABR was elicited through monaural right and monaural left stimulation. Latency and amplitude for click-and speech-ABR components were compared between right and left ear presentations. In addition, for the /da/ syllable, a fast Fourier transform analysis of the sustained frequency-following response (FFR) of the vowel was performed along with stimulus-to-response and right-left ear correlation analyses. Results No significant differences between right and left ear presentation were found for amplitudes and latencies of the click-ABR components. Significantly shorter latencies for right ear presentation as compared to left ear presentation were observed for onset and offset transient components (V, A and O), sustained components (D and E), and voiced transition components (C) of the speech-ABR. In addition, the spectral amplitude of the fundamental frequency (F0) was significantly larger for the left ear presentation than the right ear presentation. Conclusions Results of this study show that older adults with normal hearing exhibit symmetric encoding for click stimuli at the brainstem level between the right and left ear presentation. However, they present with brainstem asymmetries for the encoding of selective stimulus components of the speech-ABR between the right and left ear presentation. The right ear presentation of a /da/ syllable elicited reduced neural timing for both transient and sustained components compared to the left ear. Conversely, a stronger left ear F0 encoding was observed. These findings suggest that at a preattentive, sensory stage of auditory processing, older adults lateralize speech stimuli similarly to young adults.

scholarly journals The Influence of Maximal Strength and Knee Angle on the Reliability of Peak Force in the Isometric Squat

Sports ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 140
Author(s):  
Arthur E. Lynch ◽  
Robert W. Davies ◽  
Philip M. Jakeman ◽  
Tim Locke ◽  
Joanna M. Allardyce ◽  
...  
Keyword(s):  
Peak Force ◽  
Knee Angle ◽  
Force Output ◽  
Reliable Measure ◽  
Intra Class Correlation ◽  
Retest Reliability ◽  
Test Retest Reliability ◽  
Intra Class Correlation Coefficient ◽  
Acceptable Reliability ◽  
Maximal Effort

This study aimed to investigate the test-retest reliability of peak force in the isometric squat across the strength spectrum using coefficient of variation (CV) and intra-class correlation coefficient (ICC). On two separate days, 59 healthy men (mean (SD) age 23.0 (4.1) years; height 1.79 (0.7) m; body mass 84.0 (15.2) kg) performed three maximal effort isometric squats in two positions (at a 120° and a 90° knee angle). Acceptable reliability was observed at both the 120° (CV = 7.5 (6.7), ICC = 0.960 [0.933, 0.977]) and 90° positions (CV = 9.2 (8.8), ICC = 0.920 [0.865, 0.953]). There was no relationship between peak force in the isometric squat and the test-retest reliability at either the 120° (r = 0.052, p = 0.327) or 90° (r = 0.014, p = 0.613) positions. A subgroup of subjects (n = 17) also completed the isometric squat test at a 65° knee angle. Acceptable reliability was observed in this position (CV = 9.6 (9.3), ICC = 0.916 [0.766, 0.970]) and reliability was comparable to the 120° and 90° positions. Therefore, we deem isometric squat peak force output to be a valid and reliable measure across the strength spectrum and in different isometric squat positions.

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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