Neurokinematic Modeling of Complex Swimming Patterns of the Larval Zebrafish

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Larval zebrafish exhibit a variety of complex undulatory swimming patterns. This repertoire is controlled by the 300 neurons projecting from brain into spinal cord. Understanding how descending control signals shape the output of spinal circuits, however, is nontrivial. We have therefore developed a segmental oscillator model (using NEURON) to investigate this system. We found that adjusting the strength of NMDA and glycinergic synapses enabled the generation of oscillation (tail-beat) frequencies over the range exhibited in different larval swim patterns. In addition, we developed a kinematic model to visualize the more complex axial bending patterns used during prey capture.
7 pages with five embedded figures. Presented at "Computational Neuroscience 2004" conference in Baltimore, Maryland. To be published in conference proceedings in Neurocomputing

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Neurons and Cognition

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http://salesiana.dossiersoluciones.com/handle/123456789/88477

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/q-bio/0411029
 http://arxiv.org/abs/q-bio/0411029

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arXiv