Influence of the Background Noise on Recognition of Signals with a Complex Spectrum Structure in the Beluga Whale (Delphinapterus leucas).
Dokl Biol Sci
; 481(1): 135-138, 2018 Jul.
Article
en En
| MEDLINE
| ID: mdl-30171465
ABSTRACT
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.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Ballena Beluga
/
Ruido
Límite:
Animals
Idioma:
En
Revista:
Dokl Biol Sci
Año:
2018
Tipo del documento:
Article
País de afiliación:
Rusia