Peripheral auditory processing in the bobtail lizard Tiliqua rugosa. II, Tonotopic organization and innervation pattern of the basilar papilla

摘要: Several parameters of the peripheral auditory physiology bobtail lizard have been examined with respect to time year. These include gross-potential and neural thresholds across entire hearing range as well a standard measure size an estimate success in recording primary afferents. 1. The results do not indicate any pronounced changes ability This contrasts earlier reports by Johnstone (1969 a, b) Holmes (1984 who found gross potential size, recordability auditory-nerve fibres change markedly seasons. 2. An additional examination anaesthetic regimes used present report, however, revealed seasonal animals' requirements. The course this phenomenon closely matches previously reported over year. 4. It is therefore suggested that previous represent artefactual variation due use doses causing variable physiological state experimental animals. Evidence supporting idea gradual impairment varying degree overdose discussed.