Toneburst-evoked auditory brainstem response in a leopard seal, Hydrurga leptonyx

J. S. Tripovich; S. C. Purdy; C. Hogg; T. L. Rogers

doi:10.1121/1.3514370

Toneburst-evoked auditory brainstem response in a leopard seal, Hydrurga leptonyx

J. S. Tripovich, S. C. Purdy, C. Hogg, T. L. Rogers

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Toneburst-evoked auditory brainstem responses (ABRs) were recorded in a captive subadult male leopard seal. Three frequencies from 1 to 4 kHz were tested at sound levels from 68 to 122 dB peak equivalent sound pressure level (peSPL). Results illustrate brainstem activity within the 1-4 kHz range, with better hearing sensitivity at 4 kHz. As is seen in human ABR, only wave V is reliably identified at the lower stimulus intensities. Wave V is present down to levels of 82 dB peSPL in the right ear and 92 dB peSPL in the left ear at 4 kHz. Further investigations testing a wider frequency range on seals of various sex and age classes are required to conclusively report on the hearing range and sensitivity in this species.

Original language	English
Pages (from-to)	483-487
Number of pages	5
Journal	Journal of the Acoustical Society of America
Volume	129
Issue number	1
DOIs	https://doi.org/10.1121/1.3514370
Publication status	Published - Jan 2011

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Toneburst-evoked auditory brainstem response in a leopard seal, Hydrurga leptonyx

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