Results 151 to 160 of about 1,831 (196)
Some of the next articles are maybe not open access.
Reliability of underwater hearing thresholds in pinnipeds
Acoustics Research Letters Online: ARLO, 2005Repeated measures of low-frequency underwater hearing sensi- tivity in individuals of three pinniped species tested over 4-7 years are pre- sented. Despite changes in the experience of the subjects and certain testing parameters (e.g., equipment and research personnel), measured underwater hearing thresholds within subjects over relatively long periods
Brandon Southall +2 more
exaly +2 more sources
2008
This chapter examines the structure and function of hearing and the auditory system in fishes and marine mammals. Hearing is considered in terms of the evolution of the vertebrate auditory system in fishes and the readaption of mammals to the aquatic environment.
Popper, A., Ketten, Darlene
exaly +3 more sources
This chapter examines the structure and function of hearing and the auditory system in fishes and marine mammals. Hearing is considered in terms of the evolution of the vertebrate auditory system in fishes and the readaption of mammals to the aquatic environment.
Popper, A., Ketten, Darlene
exaly +3 more sources
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.
Lombard R Eric
exaly +3 more sources
Towards a fish-inspired underwater hearing device
Proceedings of SPIE, 2014We draw inspiration from the fish “hearing” organ, the otolith, to create a portable engineering device that can augment a human diver’s ability to hear underwater. The otolith is an inertial displacement sensor, consisting of a dense bony mass that acts as a reference to the surrounding sensory hair cells. The challenges in adapting the otolith into
John Montgomery, Iain A Anderson
exaly +2 more sources
Underwater Hearing Thresholds in Man as a Function of Water Depth
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.
Hollien Harry
exaly +3 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources