Influence of the Background Noise on Recognition of Signals with a Complex Spectrum Structure in the Beluga Whale (Delphinapterus leucas)


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Аннотация

The frequency resolving power of hearing (FRP) of the beluga whale Delphinapterus leucas was studied as dependent on influence of lasting low-intensity sounds (of the ultrasonic range from –20 to +10 dB). Testing of the spectrum ripple-phase reversal was used in conjunction with a noninvasive recording of auditory evoked potentials. FRP parameters were found to depend nonmonotonically on the intensity of the background noise. The resultant adaptation effects can be explained by the fact that, in response to the high-intensity signals, the auditory system sensitivity is reduced to the level optimal for analysis of these signals.

Авторлар туралы

E. Sysueva

Severtsov Institute of Ecology and Evolution

Хат алмасуға жауапты Автор.
Email: evgeniasysueva@gmail.com
Ресей, Moscow, 119071

A. Supin

Severtsov Institute of Ecology and Evolution

Email: evgeniasysueva@gmail.com
Ресей, Moscow, 119071

D. Nechaev

Severtsov Institute of Ecology and Evolution

Email: evgeniasysueva@gmail.com
Ресей, Moscow, 119071

V. Rozhnov

Severtsov Institute of Ecology and Evolution

Email: evgeniasysueva@gmail.com
Ресей, Moscow, 119071

M. Tarakanov

Severtsov Institute of Ecology and Evolution

Email: evgeniasysueva@gmail.com
Ресей, Moscow, 119071

V. Popov

Severtsov Institute of Ecology and Evolution

Email: evgeniasysueva@gmail.com
Ресей, Moscow, 119071

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