Results 1 to 10 of about 2,387 (222)

Is human underwater hearing mediated by bone conduction? [PDF]

Hearing Research, 2022
In-air and underwater audiograms and directional hearing abilities were measured in humans. The lowest underwater thresholds were 2.8 µW/m2 or 3.6 mPa at a frequency of 500 Hz. The underwater hearing thresholds were 4-26 dB and 40-62 dB higher than in-air hearing thresholds when measured in intensity and pressure units, respectively. This difference is
Kenneth Sørensen, Jakob Christensen-Dalsgaard   +1 more
exaly   +5 more sources

Hearing in the Juvenile Green Sea Turtle (Chelonia mydas): A Comparison of Underwater and Aerial Hearing Using Auditory Evoked Potentials [PDF]

PLoS ONE, 2016
Sea turtles spend much of their life in aquatic environments, but critical portions of their life cycle, such as nesting and hatching, occur in terrestrial environments, suggesting that it may be important for them to detect sounds in both air and water.
Wendy E D Piniak, David A Mann, Craig A Harms   +2 more
exaly   +4 more sources

Underwater hearing in the great cormorant (Phalacrocorax carbo sinensis): Methodological considerations [PDF]

Proceedings of Meetings on Acoustics, 2016
The underwater hearing threshold of a great cormorant (Phalacrocroax carbo sinensis) was measured at 2 kHz using psychophysical methods. Previous in-air and underwater testing suggests that cormorants have rather poor in-air hearing compared to other birds of similar size (Johansen, 2016).
Kirstin Anderson Hansen, Ole Næsbye Larsen, Magnus Wahlberg   +2 more
exaly   +3 more sources

Sound transmission in archaic and modern whales: Anatomical adaptations for underwater hearing [PDF]

Anatomical Record, 2007
AbstractThe whale ear, initially designed for hearing in air, became adapted for hearing underwater in less than ten million years of evolution. This study describes the evolution of underwater hearing in cetaceans, focusing on changes in sound transmission mechanisms. Measurements were made on 60 fossils of whole or partial skulls, isolated tympanics,
Sirpa Nummela, J G M Thewissen, Sunil Bajpai   +2 more
exaly   +5 more sources

Underwater audiogram of the grey seal (Halichoerus grypus) [PDF]

Biology Open
The hearing sensitivity of two grey seals (Halichoerus grypus) was measured using a psychophysical staircase method from 0.125 to 64 kHz. Both animals had best hearing sensitivity at 4 kHz (43-44 dB re 1 μPa).
Andreas Ruser, Kirstin Anderson Hansen, Magnus Wahlberg, Tobias Schaffeld, Ursula Siebert   +4 more
doaj   +4 more sources

Evaluation of the Peripheral Vestibular System due to Inner Ear Barotrauma in the Hyperbaric Environment [PDF]

Laryngoscope Investigative Otolaryngology
Objectives The aim of this study was to investigate changes that may occur in the peripheral vestibular system due to inner ear barotrauma in self‐contained underwater breathing apparatus (SCUBA) divers exposed to hyperbaric environments.
Ömer Bozkurt, Selis Gülseven Güven, Memduha Taş, Şule Yılmaz, Ahmet Köder, Erdoğan Bulut   +5 more
doaj   +2 more sources

Intraoperative Management of Lateral Semicircular Canal Fistula in Cholesteatoma Surgery: Retrospective Case Series and Audiovestibular Follow-Up [PDF]

Medicina
Background and Objectives: To evaluate the surgical management and outcomes of lateral semicircular canal fistulas (LSCFs) in patients with middle ear cholesteatoma, focusing on hearing preservation and vestibular function.
Maria Denisa Zica, Catalina Voiosu, Andreea Rusescu, Irina Ionita, Luana Maria Gherasie, Oana Ruxandra Alius, Alexandra Bizdu Branovici, Razvan Hainarosie, Viorel Zainea   +8 more
doaj   +2 more sources

Hearing Preservation After Segmental Semicircular Canal Destruction: A Report of Two Rare Cases [PDF]

Clinical Case Reports
Semicircular canal fistulas are a complication of cholesteatomatous otitis media. In extremely rare cases, extensive destruction of the bony labyrinth may result in loss of approximately one‐third of the semicircular canal arc, often with wide exposure ...
Toru Miwa, Hideaki Ogita, Keishi Ueda, Akihito Tarui, Yasunori Asai, Taro Fujikawa, Nobuhiro Hakuba   +6 more
doaj   +2 more sources

Evidence of active sound production by a shark [PDF]

Royal Society Open Science
Elasmobranchs are an evolutionarily ancient group of cartilaginous fishes that can hear underwater sounds but are not historically viewed as active sound producers.
Carolin Nieder, Eric Parmentier, Andrew G. Jeffs, Craig Radford   +3 more
doaj   +2 more sources

Leatherback sea turtles (Dermochelys coriacea) react to impulsive sounds [PDF]

Scientific Reports
Many marine ecosystems, including in the Northwest Atlantic, are expected to experience a sudden and sustained increase in underwater noise due to ocean development.
Samir H. Patel, Ryan Munnelly, Kate Choate, Leah M. Crowe, Farrell Davis, Erin Fischell, Joshua Hatch, Victoria Oriole, Rick Rogers, Nathan Shivers, Heather L. Haas   +10 more
doaj   +2 more sources