Development of the VIIIth nerve compound action potential evoked by low-intensity tone pips in the Mongolian gerbil.
Hear Res
; 88(1-2): 14-8, 1995 Aug.
Article
em En
| MEDLINE
| ID: mdl-8575989
ABSTRACT
Maturation of the cochlea and afferent auditory units is reflected by changes in VIIIth nerve compound action potential (CAP) parameters. We studied auditory nerve CAPs evoked by low-intensity stimuli in Mongolian gerbils (Meriones unguiculatus) ranging in age from 22 to 92 days after birth. The gerbil CAP development is characterized by marked changes in latency, threshold, and amplitude during the first few weeks of life. CAP latency and CAP threshold reach adult-like values at about 1 month of age. In contrast, the CAP amplitude continues to grow in size even after 2 months. This dichotomy suggests that the development of afferent auditory nerve function in the gerbil is preceded by maturation of the mechanical processes of the middle ear and cochlea.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Limiar Auditivo
/
Nervo Vestibulococlear
/
Potenciais de Ação
Limite:
Animals
Idioma:
En
Ano de publicação:
1995
Tipo de documento:
Article