## Abstract Sinus gland participation on the phase relationship between the circadian rhythms of the response to light (electroretinogram, ERG) of the visual photoreceptors in the crayfish was studied. Chronic ERG recordings were simultaneously obtained from both eyestalks in intact and sinus‐gland
On the Ontogeny of the Motor Circadian Rhythm in Crayfish
✍ Scribed by Beatriz Fuentes-Pardo; Miguel Lara-Aparicio; Santiago López de Medrano
- Publisher
- Springer
- Year
- 2001
- Tongue
- English
- Weight
- 197 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1522-9602
No coin nor oath required. For personal study only.
✦ Synopsis
In this paper we attack the problem of understanding the localization of the main structures involved in the motor circadian rhythm of crayfish by analysing its ontogeny. We present experimental results giving the properties of this rhythm in young and adult crayfish. Then we construct a mathematical model (based on a previous one for the electroretinogram circadian rhythm in the same species) simulating those properties. In the process of constructing the model we clarified and made precise various hypotheses about the biological structures involved in them and about the characteristics of the oscillators present in those structures. We also formulate some hypotheses about the general properties of circadian rhythms. Finally, we propose some experiments suggested by the mathematical model.
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