The Journal of the Acoustical Society of America (2006)
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…
Aquatic Mammals (2007)
A previous study indicated no automatic gain control (AGC) in the auditory system of a harbor porpoise (Phocoena phocoena) as revealed by recording auditory evoked potentials to simulated echoes (Beedholm…
Proceedings of the Royal Society B: Biological Sciences (2012)
Animals that use echolocation (biosonar) listen to acoustic signals with a large range of intensities, because echo levels vary with the fourth power of the animal's distance to the target.…
Aquatic Mammals (1988)
The conducting system of the heart of the harbour porpoise (Phocoena phocoena, Linnaeus, 1758) is described macroscopically as well as microscopically. The topography and microscopy of this system in the…
Aquatic Mammals (1988)
(...) Tongues (Lingua) of dead harbour porpoises are much smaller than those of comparable terrestrial mammals (Boenninghaus, 1903). With the exception of a small area at the tip of the…
Aquatic Mammals (1990)
(...) Tuberous organs in the integument of the harbour porpoise were briefly described for the first time in connection with other nerve end corpuscles in the tongue (Behrmann, 1988). A…
Anatomy and Embryology (1986)
For the first time in cetaceans, the development of the terminalis system and its continuity between the olfactory placode and the telencephalon has been demonstrated by light microscopy. In the…
Journal of Comparative Neurology (1988)
Morphogenesis of the brain in a cetacean species has been investigated by means of reconstructions from serial sections of successive prenatal stages of the harbour porpoise (Phocoena phocoena). Four specimens…
Naturwissenschaften (2012)
Some odontocetes and bats vary both click intensity and receiver sensitivity during echolocation, depending on target range. It is not known how this so-called automatic gain control is regulated by…
Journal of Comparative Physiology A (2012)
During echolocation, toothed whales produce ultrasonic clicks at extremely rapid rates and listen for the returning echoes. The auditory brainstem response (ABR) duration was evaluated in terms of latency between…