July 20, 2012 10:01
Scientists hypothesize that the dolphin brain can process information from their ultrasonic sonar using algorithms for nonlinear mathematics.
Attracted the attention of researchers unusual behavior of dolphins during a hunt when they get into a school of fish and emit tiny bubbles. It is believed that animals do this in order to confuse the prey and make it closer to swim together. The authors draw attention to the fact that the existence of such bubbles greatly hinders the use of ultrasonic sonar animals, as the air strongly scatters sound. Therefore either prevent such behavior Dolphins themselves, or they can separate the signal reflected from the body of the fish from the signal scattered by the bubbles.
Ultrasonic clicks issued by dolphins for orientation, have a slightly different amplitude. Scientists have shown how this property can be used to separate the signal from the background. This requires no special sensitivity sonar and a fairly complex algorithm processing the reflected signal.
This algorithm includes a non-linear elements of mathematics — differential equations and partial differential equations. This suggests that the brains of dolphins in one form or another is able to perform such complex calculations. The authors, however, emphasize that, prior to direct experiments with real animals this assumption is just a hypothesis.