Abstract
Based on experimental work on the ontogeny of the electroretinogram circadian rhythm in crayfish, we present a mathematical model simulating changes in both frequency and amplitude of the electroretinogram oscillation during several developmental stages until shortly before the adult age. Simultaneously, we propose a hypothetical oscillation in the hormonal release whose frequency is imposed on the electroretinogram oscillation. The model consists of two coupled nonlinear oscillators in which a dynamical response is obtained mainly through an Andronov-Hopf bifurcation. Through the construction of the model, a biological hypothesis about the essential elements underlying the ERG circadian rhythm and their interrelations is formulated and discussed.
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Lara-Aparicio, M., de Medrano, S.L., Fuentes-Pardo, B. et al. A qualitative mathematical model of the ontogeny of a circadian rhythm in crayfish. Bltn Mathcal Biology 55, 97–110 (1993). https://doi.org/10.1007/BF02460296
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DOI: https://doi.org/10.1007/BF02460296