9 Result(s)
within
Jakob Christensen-Dalsgaard
English
Otorhinolaryngology
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Chapter
A Nasty, Brutish, and Short History of Amphibian Bioacoustics
From prehistoric times, humans have certainly been aware of the existence of sounds of frogs and toads. The significance of sounds for mating was noted by Aristotle (Historia Animalium, translated as History o...
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Living Reference Work Entry In depth
Temporary Threshold Shift in Turtles
Temporary threshold shifts (TTS) have been studied in a variety of aquatic organisms from fish to marine mammals, but never in sea turtles. Here, turtle TTS was measured in air, and the in-air to underwater se...
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Article
The Masked ABR (mABR): a New Measurement Method for the Auditory Brainstem Response
The auditory brainstem response (ABR) is relatively non-invasive, and in many species, the only practical way to assess auditory sensitivity. The two main methods for measuring ABR are using either transients ...
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Chapter and Conference Paper
In-Air and Underwater Hearing in the Great Cormorant (Phalacrocorax carbo sinensis)
Hearing thresholds of a great cormorant (Phalacrocorax carbo) were measured in air and under water using psychophysics. The lowest thresholds were at 2 kHz (45 dB re 20 μPa root-mean-square [rms] in air and 79 dB...
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Chapter
The Malleable Middle Ear: An Underappreciated Player in the Evolution of Hearing in Vertebrates
The middle ear of tetrapods (limbed vertebrates) originated from nonauditory structures, and has been modified by adaptations arising from the lifestyle of the tetrapods. These accessory structures for the inn...
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Chapter
Auditory Brain Stem Processing in Reptiles and Amphibians: Roles of Coupled Ears
Comparative approaches to the auditory system have yielded great insight into the evolution of sound localization circuits, particularly within the nonmammalian tetrapods. The fossil record demonstrates multip...
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Chapter and Conference Paper
Importance of Hearing for Survival of Danio rerio (Zebrafish) in an Experimental Predator/Prey Environment
Throughout the past 10 years, there has been an increasing interest regarding the influence of man-made noise on life in the sea. Behavioral studies show that hearing in fish (and other animals) can be impaire...
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Chapter and Conference Paper
Potential for Sound Sensitivity in Cephalopods
Hearing is a primary sense in many marine animals, and we now have a reasonable understanding of what stimuli generate clear responses, the frequency range of sensitivity, expected threshold values, and mechan...
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Article
Acoustical Coupling of Lizard Eardrums
Lizard ears are clear examples of two-input pressure-difference receivers, with up to 40-dB differences in eardrum vibration amplitude in response to ipsi- and contralateral stimulus directions. The directiona...
