Modelling the Peripheral Auditory System of Lizards

  • Lei Zhang
  • John Hallam
  • Jakob Christensen-Dalsgaard
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4095)


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.


Sound Pressure Auditory System Sound Localization Calling Song Auditory Model 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Lei Zhang
    • 1
  • John Hallam
    • 1
  • Jakob Christensen-Dalsgaard
    • 2
  1. 1.Mærsk InstituteUniversity of Southern DenmarkOdense MDenmark
  2. 2.Institute for BiologyUniversity of Southern DenmarkOdense MDenmark

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