Temporal relationship between the auditory brainstem response and focal responses of auditory nerve root and cochlear nucleus during development in the tammar wallaby (Macropus eugenii)
Article
Article Title | Temporal relationship between the auditory brainstem response and focal responses of auditory nerve root and cochlear nucleus during development in the tammar wallaby (Macropus eugenii) |
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ERA Journal ID | 15751 |
Article Category | Article |
Authors | Liu, G. B. (Author), Hill, K. G. (Author) and Mark, R. F. (Author) |
Journal Title | Audiology and Neurotology |
Audiology and Neuro-Otology | |
Journal Citation | 6 (3), pp. 140-153 |
Number of Pages | 14 |
Year | 2001 |
Place of Publication | Basel, Switzerland |
ISSN | 1420-3030 |
1421-9700 | |
Digital Object Identifier (DOI) | https://doi.org/10.1159/000046821 |
Web Address (URL) | http://content.karger.com/ProdukteDB/produkte.asp?Aktion=ShowAbstract&ArtikelNr=46821&Ausgabe=227441&ProduktNr=224213 |
Abstract | Thirty-two pouch-young tammar wallabies were used to discover the generators of the auditory brainstem response (ABR) during development by the use of simultaneous ABR and focal brainstem recordings. A click response from the auditory nerve root (ANR) in the wallaby was recorded from postnatal day (PND) 101, when no central auditory station was functional, and coincided with the ABR, a simple positive wave. The response of the cochlear nucleus (CN) was detected from PND 110, when the ABR had developed 1 positive and 1 negative peak. The dominant component of the focal ANR response, the N1 wave, coincided with the first half of the ABR P wave, and that of the focal CN response, the N1 wave, coincided with the later two thirds. In older animals, the ANR response coincided with the ABR's N1 wave, while the CN response coincided with the ABR's P2, N2 and P3 waves, with its contribution to the ABR P2 dominant. The protracted development of the marsupial auditory system which facilitated these correlations makes the tammar wallaby a particularly suitable model. |
Keywords | auditory development; wallaby; Macropus eugenii; auditory brainstem response |
ANZSRC Field of Research 2020 | 320907. Sensory systems |
320903. Central nervous system | |
310906. Animal neurobiology | |
Public Notes | Copyright © 2001 S. Karger AG, Basel. The article relating to this record is copyright protected. Any distribution without written consent from S. Karger AG, Basel is a violation of the copyright. |
Byline Affiliations | University of Queensland |
Australian National University |
https://research.usq.edu.au/item/9y635/temporal-relationship-between-the-auditory-brainstem-response-and-focal-responses-of-auditory-nerve-root-and-cochlear-nucleus-during-development-in-the-tammar-wallaby-macropus-eugenii
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