XB-ART-38089
J Comp Physiol A Neuroethol Sens Neural Behav Physiol
2008 Aug 01;1948:777-83. doi: 10.1007/s00359-008-0351-1.
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Lateral line units in the amphibian brain could integrate wave curvatures.
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Aquatic predators like Xenopus laevis exploit mechano-sensory lateral lines to localise prey on the water surface by its wave emissions. In terms of distance, hypothetically, the source of a concentric wave could be centrally represented based on wave curvatures: for Xenopus, we present a first sample of 98 extracellularly recorded brainstem and midbrain responses to waves with curvatures ranging from 22.2-11.1 m(-1). At the frog, concurrently, wave amplitudes and their spectral composition were kept stable. Notably, 61% of 98 units displayed curvature-dependent spike rates, suggesting that wave curvatures could support an extraction of source distances in the amphibian brain.
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???displayArticle.link??? J Comp Physiol A Neuroethol Sens Neural Behav Physiol
Species referenced: Xenopus laevis
Genes referenced: pigy
References [+] :
Behrend,
Neural responses to water surface waves in the midbrain of the aquatic predator Xenopus laevis laevis.
2006, Pubmed,
Xenbase