... 2014 9 12 2014 © 2015. Published by The Company of Biologists Ltd 2015 Auditory evoked potentials Early tetrapods Auditory system Vibration detection Hearing in the first tetrapods was most likely impaired by the impedance mismatch between air and tissue in their transition...

... an underwater speaker using a two-response forced-choice paradigm. Electrophysiological experiments involved submerging restrained, fully conscious turtles just below the air–water interface and recording auditory evoked potentials (AEPs) when sound stimuli were presented using an underwater speaker...

... stimuli and auditory evoked potential recording. The same test-sound stimuli served as warning sounds. The durations of the warning sounds were varied randomly to avoid locking an anticipated conditioning effect to the timing immediately before the loud sound. When the warning sound lasted from 1 to 9 s...

...Craig A. Radford; John C. Montgomery; Paul Caiger; Dennis M. Higgs SUMMARY The auditory evoked potential technique has been used for the past 30 years to evaluate the hearing ability of fish. The resulting audiograms are typically presented in terms of sound pressure (dB re. 1 μPa...

... audiogram was collected using auditory evoked potential techniques that included measurements of nine frequencies from 4 to 100 kHz presented as sinusoidally amplitude-modulated tones. The results indicated that the region of best hearing was between 11.2 and 50 kHz and the subject had relatively poor high...

... of auditory evoked potentials, especially at higher frequencies in I. punctatus . Hearing sensitivity of I. punctatus was lowest at 10°C and increased by up to 36 dB between 10°C and 26°C. Significant differences were also revealed between acclimated and unacclimated animals after an increase in water...

...Brandon M. Casper; David A. Mann SUMMARY Auditory evoked potentials (AEPs) were used to measure the directional hearing thresholds of the white-spotted bamboo shark Chiloscyllium plagiosum and the brown-banded bamboo shark Chiloscyllium punctatum at four frequencies and seven directions, using...

...Brandon M. Casper; David A. Mann SUMMARY The hearing thresholds of the horn shark Heterodontus francisci and the white-spotted bamboo shark Chiloscyllium plagiosum were measured using auditory evoked potentials (AEP) in response to a dipole sound stimulus. The audiograms were similar between...