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Published in:
2006 | OriginalPaper | Chapter
Modelling the Peripheral Auditory System of Lizards
Authors : Lei Zhang, John Hallam, Jakob Christensen-Dalsgaard
Published in: From Animals to Animats 9
Publisher: Springer Berlin Heidelberg
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Lizards, such as
Mabuya macularia
or
Gecko gecko
, have a relatively simple peripheral auditory system structured as a pressure difference receiver with a strong broadband directional sensitivity. In this paper we take a lumped-parameter model of the lizard auditory system, convert the model into a set of digital filters implemented on a TDT StingRay digital signal processing module carried by a small mobile robot, and evaluate the performance of the robotic model in a phonotaxis task. The complete system shows a strong directional sensitivity for sound frequencies between 1350–1850 Hz and is successful at phonotaxis within this range. The performance of and assumptions underlying the model are also discussed.