Perception des écoulements et des vibrations chez la larve de poisson-zèbre : étude comportementale et imagerie. Olive, R. Ph.D. Thesis, Paris 6, December, 2015. Publication Title: http://www.theses.frabstract bibtex The Zebrafish larva is a model for the study of vertebrate central nervous system. Mutants have been developped which express calcium reporter (GCaMP) in their neurons. These mutants are used in functional imaging experiments in which the activity of almost all the neurons is simultaneously recorded. The first chapter of this thesis is devoted to the conception of a behavioral experiment designed to record and analyse the swim movements of zebrafish larvae submitted to a succion flow. The contributions of lateral line (specific fish organ responsible for the perception of hydrodynamic stimulations) and visual system have been separated in order to describe the interactions between those two modalities and their respective effects on larvae reactions to aspiration, analysed through their swim patterns. This experiment was thought to prepare a study of neuronal responses to aspiration, thanks to the laser sheet microscopy setup developped in the laboratory since four years. The aim was to use calcium imaging to work on cross-modal experiment, by the dynamic observation of neural networks dedicated to the two sensory modalities when stimulated simultaneously or separatly. Facing difficulties to record lateral line response using calcium imaging, which are not been recorded yet, functional imaging experiments have adressed zebrafish larvae auditory system instead of hydrodynamic perception. The second part of this thesis describes protocols, analysis and results from these experiments. The results are still at an exploratoty stage but draw a scheme of neural networks involved in vibrations perception in zebrafish larvae : they present recordings of a huge part of central nervous system and the activity evoked by auditory stimulations.
@phdthesis{olive_perception_2015,
title = {Perception des écoulements et des vibrations chez la larve de poisson-zèbre : étude comportementale et imagerie},
abstract = {The Zebrafish larva is a model for the study of vertebrate central nervous system. Mutants have been developped which express calcium reporter (GCaMP) in their neurons. These mutants are used in functional imaging experiments in which the activity of almost all the neurons is simultaneously recorded. The first chapter of this thesis is devoted to the conception of a behavioral experiment designed to record and analyse the swim movements of zebrafish larvae submitted to a succion flow. The contributions of lateral line (specific fish organ responsible for the perception of hydrodynamic stimulations) and visual system have been separated in order to describe the interactions between those two modalities and their respective effects on larvae reactions to aspiration, analysed through their swim patterns. This experiment was thought to prepare a study of neuronal responses to aspiration, thanks to the laser sheet microscopy setup developped in the laboratory since four years. The aim was to use calcium imaging to work on cross-modal experiment, by the dynamic observation of neural networks dedicated to the two sensory modalities when stimulated simultaneously or separatly. Facing difficulties to record lateral line response using calcium imaging, which are not been recorded yet, functional imaging experiments have adressed zebrafish larvae auditory system instead of hydrodynamic perception. The second part of this thesis describes protocols, analysis and results from these experiments. The results are still at an exploratoty stage but draw a scheme of neural networks involved in vibrations perception in zebrafish larvae : they present recordings of a huge part of central nervous system and the activity evoked by auditory stimulations.},
school = {Paris 6},
author = {Olive, Raphaël},
month = dec,
year = {2015},
note = {Publication Title: http://www.theses.fr},
keywords = {\#nosource},
}
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