... birds, whereas their underwater hearing thresholds and ear anatomy suggest adaptations to aquatic hearing. Auditory brainstem response Audiogram Auditory adaptation Auditory threshold curves Bioacoustics Underwater hearing Amphibious living requires that the senses function well both...

... and sensitivity of hearing in sea snakes. This study investigated the hearing sensitivity of the fully marine sea snake Hydrophis stokesii by measuring auditory evoked potential (AEP) audiograms for two individuals. AEPs were recorded from 40 Hz (the lowest frequency tested) up to 600 Hz, with a peak...

... across the full range of hearing. Using psychophysical methods with two trained ringed seals, detection thresholds for narrowband signals were measured under quiet, carefully controlled environmental conditions to generate aerial and underwater audiograms. Masked underwater thresholds were measured...

... and prepared the manuscript with advice on results and interpretation from all authors. Competing interests The authors declare no competing financial interests. 7 6 2013 30 9 2013 © 2014. Published by The Company of Biologists Ltd 2014 Audiogram Effects of noise Frequency...

...Emanuel C. Mora; Ariadna Cobo-Cuan; Frank Macías-Escrivá; Martha Pérez; Manuela Nowotny; Manfred Kössl SUMMARY The mechanical tuning of the ear in the moth Empyreuma pugione was investigated by distortion-product otoacoustic emissions (DPOAE) and laser Doppler vibrometry (LDV). DPOAE audiograms...

..., to assess their ability to detect single-frequency tonal stimuli. The behavioral audiograms indicated that the manatees’ auditory frequency detection for tonal stimuli ranged from 0.25 to 90.5 kHz, with peak sensitivity extending from 8 to 32 kHz. Critical ratios, thresholds for tone detection...

... reported psychophysical thresholds for California and Steller sea lions. The features of high-frequency hearing limit and relative sensitivity of most ASSR audiograms were, however, similar to those of psychophysical audiograms, suggesting that ASSR methods can be used to improve understanding of hearing...

...Paul E. Nachtigall; Michelle M. L. Yuen; T. Aran Mooney; Kristen A. Taylor SUMMARY An infant Risso's dolphin ( Grampus griseus) was rescued from the beach in Southern Portugal, and an audiogram was measured using auditory evoked potentials (AEP) and envelope following response (EFR) techniques...

... for complex sounds by the green treefrog (Hyla cinerea) . J. Comp. Physiol . 162 , 397 – 403 . 10.1007/BF00606126 Megela-Simmons , A. , Moss , C. F. and Daniel , K. M. ( 1985 ). Behavioral audiograms of the bullfrog (Rana catesbeiana) and the green treefrog (Hyla cinerea) . J...

...Martin K. Obrist; Jeffrey J. Wenstrup ABSTRACT We examined aspects of hearing in the red bat ( Lasiurus borealis ) related to its use of biosonar. Evoked potential audiograms, obtained from volume-conducted auditory brainstem responses, were obtained in two bats, and the sound pressure...

... at 45 kHz. The neurophysiological audiogram is identical to the behavioral audiogram for a head roll, one behavioral component of the beetle’s startle response elicited by ultrasound. Blocking experiments show that the membranous structures on the cervix are indeed the hearing organs...