Akhi A.V. Efficiency of Identification of Complex Noise-Like Signal Classes by Dolphins (Tursiops truncatus) under Simultaneous Presentation Spatial Uncertainty
https://doi.org/10.59887/fpg/vxe3-6531-nkup
Abstract
The possibility of dolphin’s auditory system to solve the complex problem of identifying and classifying noise-like signals according to certain invariant features is considered under conditions of spatial uncertainty of their simultaneous presentation. There was studied the ability of bottlenose dolphins, which were trained to recognize and classify such signals, to select a certain class of signals from several that sound simultaneously. The dolphin had to recognize a positive class signal with a pair of simultaneously sounding signals: positive-negative (alternative choice) and with simultaneously sounding three signals: positive-negative-negative (multiple choice). It’s shown that the dolphin effectively solves the problem with a simple alternative choice of two signal sources, at the limit of reliability when choosing from three sources and unreliable when choosing from more sources.
Keywords
dolphin,
noise-like signal,
classification,
spatial uncertainty,
alternative choice,
multiple choice
Supporting agencies: The study was carried out within the framework of the State assignment No. 075-00967-23-00 for 2023.
About the Author
A. V. Akhi
Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
194223, St. Petersburg, M. Thorez pr., 44.
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Review
For citations:
Akhi A.V. Akhi A.V. Efficiency of Identification of Complex Noise-Like Signal Classes by Dolphins (Tursiops truncatus) under Simultaneous Presentation Spatial Uncertainty. Fundamental and Applied Hydrophysics. 2023;16(1):90–97. (In Russ.) https://doi.org/10.59887/fpg/vxe3-6531-nkup
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