Auditory brainstem response in a harbor porpoise show lack of automatic gain control for simulated echoes
Abstract
The auditory brainstem response (ABR) response to simulated echolocation clicks was studied in a harbor porpoise, Phocoena phocoena, to determine the relationship between the animal’s perceived echo strength and the simulated target distance. In one experiment the click level at the listening post was kept constant while delay was changed, in another, the level was varied to approximate spreading losses. Results of both experiments indicate that there is no automatic gain control in the hearing system of this harbor porpoise.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 09, 2006
- Source ID
- 10.1121/1.2167027
Entities
People
- Kristian Beedholm
- Lee A. Miller
- Marie-anne Blanchet
Organizations
- Institute of Biology
- Office of Naval Research