Skip to main content
SpringerLink
Log in

A VLSI-Based Model of Azimuthal Echolocation in the Big Brown Bat

  • Published:
Autonomous Robots Aims and scope Submit manuscript

Abstract

The azimuthal localization of objects by echolocating bats is based on the difference of echo intensity received at the two ears, known as the interaural level difference (ILD). Mimicking the neural computation of ILD in bats, we have constructed a spike-based VLSI model of the lateral superior olive (LSO) that can successfully produce direction-dependent responses. This simple algorithm, while studied in the acoustic domain, is applicable to any localization based on direction-dependent signal attenuation differences.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Boahen, K.A. 1998. Communicating neuronal ensembles between neuromorphic chips. In Neuromorphic Systems Engineering, T.S. Lande (Ed.), Kluwer Academic Publishers: Boston, MA, Ch. 11, pp. 229–261.

    Google Scholar 

  • Indiveri, G. 2000. Modeling selective attention using a neuromorphic analog VLSI device. Neural Computation, 12(12):2857–2880.

    Google Scholar 

  • Mead, C. 1989. Analog VLSI and Neural Systems, Addison-Wesley: Menlo Park, pp. 193–204.

    Google Scholar 

  • Park, T. 1998. IID Sensitivity differs between two principal centers in the interaural intensity difference pathway: The LSO and the IC. J. Neurophysiol., 79(5):2416–2431.

    Google Scholar 

  • Pollak, G. and Burger, R.M. 2000. Reversible inactivation of the dorsal nucleus of the lateral lemniscus reveals its role for processing multiple sound sources in the inferior colliculus. Poster Presentation at the Symposium on Synaptic Function in Hearing and Balance, Johns Hopkins University, June 8, 2000.

  • Pollak, G. and Park, T. 1995. Inferior colliculus. In Hearing by Bats, A. Popper and R.R. Fay (Eds.), Springer-Verlag: New York, pp. 296–367.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Electrical and Computer Engineering Department, and the Institute for Systems Research, A.V. Williams Bldg., University of Maryland, College Park, MD, 20742, USA

    Timothy Horiuchi

  2. Department of Bioengineering, 120 Hayden Hall, 3320 Smith Walk, University of Pennsylvania, Philadelphia, PA, 19104, USA

    Kai M. Hynna

Authors
  1. Timothy Horiuchi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Kai M. Hynna
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Horiuchi, T., Hynna, K.M. A VLSI-Based Model of Azimuthal Echolocation in the Big Brown Bat. Autonomous Robots 11, 241–247 (2001). https://doi.org/10.1023/A:1012486906587

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1012486906587

Search

Navigation