Cessac

Multi scale dynamics in retinal waves

Spontaneous waves of spiking activity are observed in the retina during development. This activity plays a central role in shaping the visual system and retinal circuitry. Waves first occur at early embryonic stages of development and gradually disappear upon maturation. This process involves several time and space scales from molecular level (neurotransmitters), to neuron, to neurons population in the retina. I will present a model describing these different scales, accurate enough to reproduce experiments and to predict experimental results. This model can also be studied by tools from dynamical systems theory and bifurcations analysis. In my talk I will present part of this analysis linking it to biophysics and experiments.

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