Source location encoding in the fish lateral line canal

B Curcic-Blake, SM van Netten*

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

85 Citaten (Scopus)
327 Downloads (Pure)

Samenvatting

The position of a hydrodynamic dipole source, as encoded in a linear array of mechano-detecting neuromasts in the fish lateral line canal, was electrophysiologically investigated. Measured excitation patterns along the lateral line were compared to theoretical predictions and were found to be in good agreement. The results demonstrate that information on the position of a vibrating source from a fish is linearly coded in the spatial characteristics of the excitation pattern of pressure gradients distributed along the lateral line canal. Several algorithms are discussed that could potentially be used by a fish to decode lateral line excitation patterns, in order to localise a source and its axis of vibration. Specifically, a wavelet transform of a 1-D excitation pattern is shown to reconstruct a 2-D image of dipole sources located within a distance comparable to the body length of a fish and with a close range spatial accuracy twice the inter-neuromast distance.

Originele taal-2English
Pagina's (van-tot)1548-1559
Aantal pagina's12
TijdschriftJournal of Experimental Biology
Volume209
Nummer van het tijdschrift8
DOI's
StatusPublished - 15-apr.-2006

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