Larval lampreys possess a functional lateral line system

S. Gelman*, A. Ayali, E. D. Tytell, A. H. Cohen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Morphology of larval lampreys' neuromasts was found to be very similar to that of adults. Activity in the lateral line nerve, elicited by a vibrating ball, indicated a functional lateralis system. Analysis revealed at least two populations of afferents, responding to opposite directions of water flow, with adapting responses. The response magnitude increased monotonically with stimulus amplitude. Larval lampreys' neuromasts were less sensitive than those of teleosts. At low frequencies the response showed a phase lead of 200-220° with respect to the maximum of the ball displacement and a gain that was approximately linearly proportional to frequency.

Original languageEnglish
Pages (from-to)271-277
Number of pages7
JournalJournal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology
Volume193
Issue number2
DOIs
StatePublished - Feb 2007

Funding

FundersFunder number
National Institutes of Health
National Institute of Neurological Disorders and StrokeR01NS054271

    Keywords

    • Ammocoetes
    • Lateral line
    • Locomotion
    • Mechanoreception
    • Neuromasts

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