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Titolo:
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)
Autore:
Liu, GB; Hill, KG; Mark, RF;
Indirizzi:
Australian Natl Univ, Res Sch Biol Sci, Dev Neurobiol & Endocrinol Grp, Canberra, ACT 2601, Australia Australian Natl Univ Canberra ACT Australia 2601 rra, ACT 2601, Australia Univ Queensland, Dept Physiol & Pharmacol, Vis Touch & Hearing Res Ctr, Brisbane, Qld 4072, Australia Univ Queensland Brisbane Qld Australia 4072 Brisbane, Qld 4072, Australia
Titolo Testata:
AUDIOLOGY AND NEURO-OTOLOGY
fascicolo: 3, volume: 6, anno: 2001,
pagine: 140 - 153
SICI:
1420-3030(200105/06)6:3<140:TRBTAB>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
STEM EVOKED-POTENTIALS; SOURCE DENSITY ANALYSIS; INDUCED NEURONAL LOSS; INFERIOR COLLICULUS; TRAPEZOID BODY; GUINEA-PIGS; CAT; GENERATORS; LESIONS; ORIGIN;
Keywords:
auditory development; wallaby; Macropus eugenii; auditory brainstem response;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
47
Recensione:
Indirizzi per estratti:
Indirizzo: Mark, RF Australian Natl Univ, Res Sch Biol Sci, Dev Neurobiol & Endocrinol Grp, Canberra, ACT 2601, Australia Australian Natl Univ Canberra ACT Australia 2601 2601, Australia
Citazione:
G.B. Liu et al., "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)", AUDIOL NEUR, 6(3), 2001, pp. 140-153

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 N-1 wave, coincided with the first half of the ABR P wave, and that of the focal CN response, the N-1 wave, coincided with the later two thirds. In older animals, the ANR response coincided with the ABR's N-1, wave, while the CN response coincided with the ABR's P-2, N-2 and P-3 waves, with its contribution to the ABR P-2 dominant. The protracted development of the marsupial auditory system which facilitated these correlations makes the tammar wallaby a particularly suitable model. Copyright (C) 2001 S. Karger AG, Basel.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 07:55:10