Phys. Rev. Lett. 91, 158101 (2003) [4 pages]Minimal Model of Prey Localization through the Lateral-Line SystemReceived 31 December 2002; published 6 October 2003 The clawed frog Xenopus is an aquatic predator catching prey at night by detecting water movements caused by its prey. We present a general method, a “minimal model” based on a minimum-variance estimator, to explain prey detection through the frog’s many lateral-line organs, even in case several of them are defunct. We show how waveform reconstruction allows Xenopus’ neuronal system to determine both the direction and the character of the prey and even to distinguish two simultaneous wave sources. The results can be applied to many aquatic amphibians, fish, or reptiles such as crocodilians. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.158101
DOI:
10.1103/PhysRevLett.91.158101
PACS:
87.19.Bb, 05.40.–a, 87.18.–h, 87.19.La
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