scholarly journals Temporal processing in the auditory brainstem response by full-term 6-week- and 9-month-old infants

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Xiaoqin Mai ◽  
Twila Tardif ◽  
Lin Xu ◽  
Mingyan Li ◽  
Paul R. Kileny ◽  
...  
Keyword(s):  
Temporal Processing ◽  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Full Term ◽  
Brainstem Response

scholarly journals Auditory Brainstem Response to Paired Click Stimulation as an Indicator of Peripheral Synaptic Health in Noise-Induced Cochlear Synaptopathy

2021 ◽  
Vol 14 ◽  
Author(s):  
Jae-Hun Lee ◽  
Min Young Lee ◽  
Ji Eun Choi ◽  
Jae Yun Jung
Keyword(s):  
Evoked Potentials ◽  
Hair Cells ◽  
Temporal Processing ◽  
Auditory Brainstem Response ◽  
Animal Studies ◽  
Auditory Evoked Potentials ◽  
Noise Exposure ◽  
Auditory Brainstem ◽  
Ribbon Synapses ◽  
Brainstem Response

IntroductionA defect in the cochlear afferent synapse between the inner hair cells and spiral ganglion neurons, after noise exposure, without changes in the hearing threshold has been reported. Animal studies on auditory evoked potentials demonstrated changes in the auditory brainstem response (ABR) measurements of peak I amplitude and the loss of synapses, which affect the temporal resolution of complex sounds. Human studies of auditory evoked potential have reported ambiguous results regarding the relationship between peak I amplitude and noise exposure. Paired click stimuli have been used to investigate the temporal processing abilities of humans and animals. In this study, we investigated the utility of measuring auditory evoked potentials in response to paired click stimuli to assess the temporal processing function of ribbon synapses in noise-induced cochlear synaptopathy.Materials and MethodsTwenty-two Sprague Dawley rats were used in this study, and synaptopathy was induced by narrow-band noise exposure (16 kHz with 1 kHz bandwidth, 105 dB sound pressure level for 2 h). ABRs to tone and paired click stimuli were measured before and 1, 3, 7, and 14 days after noise exposure. For histological analyses, hair cells and ribbon synapses were immunostained and the synapses quantified. The relationships among ABR peak I amplitude, number of synapses, and ABR to paired click stimuli were examined.ResultsOur results showed that ABR thresholds increase 1 day after noise exposure but fully recover to baseline levels after 14 days. Further, we demonstrated test frequency-dependent decreases in peak I amplitude and the number of synapses after noise exposure. These decreases were statistically significant at frequencies of 16 and 32 kHz. However, the ABR recovery threshold to paired click stimuli increased, which represent deterioration in the ability of temporal auditory processing. Our results indicate that the ABR recovery threshold is highly correlated with ABR peak I amplitude after noise exposure. We also established a direct correlation between the ABR recovery threshold and histological findings.ConclusionThe result from this study suggests that in animal studies, the ABR to paired click stimuli along with peak I amplitude has potential as an assessment tool for hidden hearing loss.

Auditory brainstem response in premature and full-term children

2007 ◽  
Vol 71 (9) ◽  
pp. 1449-1456 ◽  
Author(s):  
Pricila Sleifer ◽  
Sady Selaimen da Costa ◽  
Pedro Luiz Cóser ◽  
Marcelo Zubaran Goldani ◽  
Cristina Dornelles ◽  
...  
Keyword(s):  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Full Term ◽  
Brainstem Response

Auditory brainstem response in full-term neonates born to mothers with iron deficiency anemia: relation to disease severity

2018 ◽  
Vol 33 (11) ◽  
pp. 1881-1888 ◽  
Author(s):  
Mohsen Saleh ElAlfy ◽  
Rania Ali El-Farrash ◽  
Hesham Mohammed Taha ◽  
Eman Abdel Rahman Ismail ◽  
Noha Ahmed Mokhtar
Keyword(s):  
Iron Deficiency ◽  
Disease Severity ◽  
Iron Deficiency Anemia ◽  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Full Term ◽  
Deficiency Anemia ◽  
Term Neonates ◽  
Brainstem Response

Auditory brainstem response in the lesser scaup, a species of diving duck

2010 ◽  
Author(s):  
Sara C. Therrien ◽  
Catherine E. Carr ◽  
Elizabeth F. Brittan-Powell ◽  
Alicia M. Wells-Berlin
Keyword(s):  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Diving Duck ◽  
Lesser Scaup ◽  
Brainstem Response
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