Identifying the location of a target object in the weakly electric fish through spatiotemporal filtering process

Miyoung Sim, Dae Eun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The weakly electric fish use their electric organ discharge (EOD) and electroreceptors to identify their prey, explore in their surrounding environment, and communicate with their members in the same species. They are specialized in active electrolocation. They can detect the distortion of the self-generated electric field, which is caused by a target object. There are two types of electric signals, wave-type and pulsetype, that the weakly electric fish can generate. In this paper, we suggest that periodic EOD signals are helpful to extract localization features from noisy electrosensory signals. The cross-correlation between an efference copy signal and the sensory afferent signals in the waveform can produce accurate relative slope in noisy environment. This process has two-phase filtering. The noise-filtering with cross-correlation with respect to the temporal axis and additional filtering with respect to rostrocaudal spatial axis can effectively remove noise, and thus this process provides accurate information of the distance of a target object.

Original languageEnglish
Title of host publicationArtificial Life XII
Subtitle of host publicationProceedings of the 12th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2010
Pages514-521
Number of pages8
Publication statusPublished - 2010 Dec 1
Event12th International Conference on the Synthesis and Simulation of Living Systems: Artificial Life XII, ALIFE 2010 - Odense, Denmark
Duration: 2010 Aug 192010 Aug 23

Other

Other12th International Conference on the Synthesis and Simulation of Living Systems: Artificial Life XII, ALIFE 2010
CountryDenmark
CityOdense
Period10/8/1910/8/23

Fingerprint

Fish
Filtering
Target
Cross-correlation
Electric fields
Noise Filtering
Prey
Waveform
Electric Field
Slope
Object

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation

Cite this

Sim, M., & Kim, D. E. (2010). Identifying the location of a target object in the weakly electric fish through spatiotemporal filtering process. In Artificial Life XII: Proceedings of the 12th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2010 (pp. 514-521)
Sim, Miyoung ; Kim, Dae Eun. / Identifying the location of a target object in the weakly electric fish through spatiotemporal filtering process. Artificial Life XII: Proceedings of the 12th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2010. 2010. pp. 514-521
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Sim, M & Kim, DE 2010, Identifying the location of a target object in the weakly electric fish through spatiotemporal filtering process. in Artificial Life XII: Proceedings of the 12th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2010. pp. 514-521, 12th International Conference on the Synthesis and Simulation of Living Systems: Artificial Life XII, ALIFE 2010, Odense, Denmark, 10/8/19.

Identifying the location of a target object in the weakly electric fish through spatiotemporal filtering process. / Sim, Miyoung; Kim, Dae Eun.

Artificial Life XII: Proceedings of the 12th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2010. 2010. p. 514-521.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Sim M, Kim DE. Identifying the location of a target object in the weakly electric fish through spatiotemporal filtering process. In Artificial Life XII: Proceedings of the 12th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2010. 2010. p. 514-521