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In-air and underwater hearing in the great cormorant (Phalacrocorax carbo)
, 2013 The in-air and underwater hearing abilities of the great cormorant was measured using psychophysical and physiological techniques. The threshold of hearing was established at 3 frequencies in air and 4 frequencies underwater using a go-no go staircase psychophysical paradigm in an outdoor pen.
Johansen, Sasia +4 more
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Experiments on the mechanism of underwater hearing
Acta Oto-Laryngologica, 2011The findings suggest that underwater sound perception is realized by the middle ear rather than by bone conduction, at least in shallow water conditions.To prove whether underwater sound perception is effected by bone conduction or by conduction via the middle ear.Five divers, breathing through snorkels, were tested in a swimming pool, to determine ...
Hans Wilhelm, Pau +5 more
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Underwater Hearing Thresholds in Man
The Journal of the Acoustical Society of America, 1967The audibility threshold performance of the human ear submerged in water at ear depths of 12 and 35 ft was compared to its performance in air. Threshold SPL's at 125, 250, 500, 1000, 2000, 4000, and 8000 Hz from five male and three female divers wearing open-circuit SCUBA equipment were obtained by the Békésy technique.
J F, Brandt, H, Hollien
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Some Observations on Underwater Hearing
The Journal of the Acoustical Society of America, 1971We examine the relative role of bone conduction and tympanic conduction in underwater localization and detection by humans. Basically, we placed divers underwater and covered up various parts of the skull and outer ear with neoprene foam (an insulator of sound) and measured thresholds and localization accuracy.
D A, Norman, R, Phelps, F, Wightman
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Origin of underwater hearing in whales
Nature, 1993All described fossil and Recent cetaceans have relatively similar ear bones (malleus, incus and stapes) that strongly diverge from those of land mammals. Here we report that the hearing organ of the oldest whale, Pakicetus, is the only known intermediate between that of land mammals and aquatic cetaceans (whales, dolphins and porpoises).
J G, Thewissen, S T, Hussain
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AMPHIBIAN UNDERWATER HEARING: BIOPHYSICS AND NEUROPHYSIOLOGY
Bioacoustics, 2008(2008). AMPHIBIAN UNDERWATER HEARING: BIOPHYSICS AND NEUROPHYSIOLOGY. Bioacoustics: Vol. 17, No. 1-3, pp. 60-62.
Christensen-Dalsgaard, J., Elliott, T.M.
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Biophysics of Underwater Hearing in Anuran Amphibians
Journal of Experimental Biology, 1982ABSTRACTA standing wave tube apparatus was used to determine the biophysical basis of underwater hearing sensitivity in 3 species of Rana and in Xenopus laevis. A speaker inside the base of a vertical, water-filled 3 m steel pipe produced standing waves.
T E, Hetherington, R E, Lombard
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Biophysics of underwater hearing in the clawed frog, Xenopus laevis
Journal of Comparative Physiology A, 1992Anesthetized clawed frogs (Xenopus laevis) were stimulated with underwater sound and the tympanic disk vibrations were studied using laser vibrometry. The tympanic disk velocities ranged from 0.01 to 0.5 mm/s (at a sound pressure of 2 Pa) in the frequency range of 0.4-4 kHz and were 20-40 dB higher than those of the surrounding tissue.
Christensen-Dalsgaard, J; id_orcid 0000-0002-6075-3819 +1 more
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Underwater Hearing Thresholds in Man as a Function of Water Depth
The Journal of the Acoustical Society of America, 1969Thresholds of human hearing were obtained underwater at depths of 35, 70, and 105 ft. Subjects were six divers experienced in taking underwater hearing-threshold tests by a modified Békésy technique. No significant effect resulting from the depth was noted.
J F, Brandt, H, Hollien
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