Age‐related changes in BAER at different click rates from neonates to adults

Jiang, Ze D.; Wu, Yun Ya; Wilkinson, A

doi:10.1111/j.1651-2227.2009.01312.x

Cited by 26 publications

(27 citation statements)

References 10 publications

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“…Overall, mean latencies of waves eIII and eV were within 2 SD of previously reported normative values in children using unilateral CI [Gordon et al, 2006], whereas the latencies of III and V were prolonged [Campbell et al, 1981;Beiser et al, 1985;Eggermont and Salamy, 1988;Jiang et al, 2009], especially for wave V ( fig. 2 b).…”

Section: Methodssupporting

confidence: 60%

“…2 c). Again, there were no significant effects of hearing loss on electrically (R = 0.08, p = 0.73) or acoustically (R = 0.43, p = 0.05) evoked interwave latencies, al- Mean wave latencies were significantly shorter to electric than acoustic stimulation, but were comparable to normative values [Gordon et al, 2006] with electric stimulation, but not with acoustic stimulation [Campbell et al, 1981;Beiser et al, 1985;Eggermont and Salamy, 1988;Jiang et al, 1991Jiang et al, , 2009. c Interwave latencies were similar for electric and acoustic stimulation except for 7 children with severe-to-profound hearing loss in the nonimplanted ear.…”

Section: Symmetric Brainstem Function Is Preserved In Only a Portion mentioning

confidence: 93%

“…17 though variability increased with hearing loss with acoustic stimulation. Interwave latencies were compared with previously reported normative values for electric [Gordon et al, 2006] and acoustic stimulation [Campbell et al, 1981;Beiser et al, 1985;Eggermont and Salamy, 1988;Jiang et al, 2009]. All 21 children had electrically evoked interwave latencies within the normative range [+2 SD = 2.48 ms; Gordon et al, 2006]; however, only 14 of the 21 children had interwave latencies that were within the normative range for acoustic stimulation when compared to the largest (most conservative) normative estimate [+2 SD = 2.31 ms; Eggermont and Salamy, 1988].…”

Section: Symmetric Brainstem Function Is Preserved In Only a Portion mentioning

confidence: 99%

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The Effects of Asymmetric Hearing on Bilateral Brainstem Function: Findings in Children with Bimodal (Electric and Acoustic) Hearing

Polonenko

Papsin²,

Gordon³

2015

Audiol Neurotol

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As implantation criteria are broadening to include children with asymmetric hearing loss, it is important to determine the degree of residual hearing needed to protect the bilateral auditory pathways for binaural hearing and whether there is a sensitive period in development for implantation in these children. We have been studying these questions in a growing cohort of children. In the present study, auditory brainstem responses were recorded in 21 children who had 2.2 ± 2.2 years of bimodal hearing. Responses were evoked by 11-Hz acoustic clicks presented to the non-implanted ear and with biphasic electric pulses presented to the implanted ear. Twelve of these children also completed a behavioural task in which they were asked to which side of their heads bilaterally presented clicks/pulses that varied in interaural level or timing lateralized. All children experienced a delay in the non-implanted ear that resulted in 2.0 ± 0.35 ms longer peak latencies. These were further prolonged in 7 children as measured by longer interwave latencies from this ear than from the implanted ear. Despite large asymmetries in timing of brainstem activity between the two ears, all children perceived changes in interaural level differences. They were unable to detect differences in interaural timing cues. Symmetric brainstem function suggests bilateral development was preserved in some children. Future work will explore whether these children have better potential for developing binaural hearing using bimodal input.

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Section: Methodssupporting

confidence: 60%

Section: Symmetric Brainstem Function Is Preserved In Only a Portion mentioning

confidence: 93%

Section: Symmetric Brainstem Function Is Preserved In Only a Portion mentioning

confidence: 99%

See 1 more Smart Citation

The Effects of Asymmetric Hearing on Bilateral Brainstem Function: Findings in Children with Bimodal (Electric and Acoustic) Hearing

Polonenko

Papsin²,

Gordon³

2015

Audiol Neurotol

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“…The mean of the rate for each experiment is indicated in the first column. with other studies (e.g., Yagi and Kaga, 1979;Lasky, 1984;Lina-Granade et al, 1993;Leung et al, 1998;Jiang et al, 2009;Stone et al, 2009). Table II shows the mean and standard deviation of the latencies and amplitudes of waves I, III, and V on ABR obtained using the RSA, QSD, and CONV techniques at different stimulation rates.…”

Section: Analysis Of Amplitudes and Latencies Measured With Rsamentioning

confidence: 97%

Recording of auditory brainstem response at high stimulation rates using randomized stimulation and averaging

Valderrama

Álvarez

Torre

et al. 2012

The Journal of the Acoustical Society of America

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The recording of auditory brainstem response (ABR) at high stimulation rates is of great interest in audiology. It allows a more accurate diagnosis of certain pathologies at an early stage and the study of different mechanisms of adaptation. This paper proposes a methodology, which we will refer to as randomized stimulation and averaging (RSA) that allows the recording of ABR at high stimulation rates using jittered stimuli. The proposed method has been compared with quasi-periodic sequence deconvolution (QSD) and conventional (CONV) stimulation methodologies. Experimental results show that RSA provides a quality in ABR recordings similar to that of QSD and CONV. Compared with CONV, RSA presents the advantage of being able to record ABR at rates higher than 100 Hz. Compared with QSD, the formulation of RSA is simpler and allows more flexibility on the design of the pseudorandom sequence. The feasibility of the RSA methodology is validated by an analysis of the morphology, amplitudes, and latencies of the most important waves in ABR recorded at high stimulation rates from eight normal hearing subjects.

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“…Following a perinatal asphyxia event, ABR abnormalities have been reported, including an elevated response threshold, an increase in wave latencies, brainstem conduction time and interpeak intervals; reduced wave amplitudes and V/I amplitude ratio (22,34,75). These electrophysiological findings have been correlated with histopathological observations, which indicated that perinatal asphyxia often causes discrete lesions in brainstem auditory nuclei (65).…”

Section: Introductionmentioning

confidence: 92%

Antioxidant Treatments Recover the Alteration of Auditory‐Evoked Potentials and Reduce Morphological Damage in the Inferior Colliculus after Perinatal Asphyxia in Rat

et al. 2015

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Maturation of the auditory pathway is dependent on the central nervous system myelination and it can be affected by pathologies such as neonatal hypoxic ischemic (HI) encephalopathy. Our aim was to evaluate the functional integrity of the auditory pathway and to visualize, by histological and cellular methods, the damage to the brainstem using a neonatal rat model of HI brain injury. To carry out this morphofunctional evaluation, we studied the effects of the administration of the antioxidants nicotine, melatonin, resveratrol and docosahexaenoic acid after hypoxia-ischemia on the inferior colliculus and the auditory pathway. We found that the integrity of the auditory pathway in the brainstem was altered as a consequence of the HI insult. Thus, the auditory brainstem response (ABR) showed increased I-V and III-V wave latencies. At a histological level, HI altered the morphology of the inferior colliculus neurons, astrocytes and oligodendricytes, and at a molecular level, the mitochondria membrane potential and integrity was altered during the first hours after the HI and reactive oxygen species (ROS) activity is increased 12 h after the injury in the brainstem. Following antioxidant treatment, ABR interpeak latency intervals were restored and the body and brain weight was recovered as well as the morphology of the inferior colliculus that was similar to the control group. Our results support the hypothesis that antioxidant treatments have a protective effect on the functional changes of the auditory pathway and on the morphological damage which occurs after HI insult.

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Age‐related changes in BAER at different click rates from neonates to adults

Cited by 26 publications

References 10 publications

The Effects of Asymmetric Hearing on Bilateral Brainstem Function: Findings in Children with Bimodal (Electric and Acoustic) Hearing

The Effects of Asymmetric Hearing on Bilateral Brainstem Function: Findings in Children with Bimodal (Electric and Acoustic) Hearing

Recording of auditory brainstem response at high stimulation rates using randomized stimulation and averaging

Antioxidant Treatments Recover the Alteration of Auditory‐Evoked Potentials and Reduce Morphological Damage in the Inferior Colliculus after Perinatal Asphyxia in Rat

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