Phototaxis is a satiety-dependent behavioral sequence in Hydra vulgaris.
| Autor: | Kim S; Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005, USA., Badhiwala KN; Department of Bioengineering, Rice University, Houston, TX 77005, USA., Duret G; Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005, USA., Robinson JT; Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005, USA.; Department of Bioengineering, Rice University, Houston, TX 77005, USA.; Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA. |
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| Jazyk: | angličtina |
| Zdroj: | The Journal of experimental biology [J Exp Biol] 2024 Sep 15; Vol. 227 (18). Date of Electronic Publication: 2024 Sep 25. |
| DOI: | 10.1242/jeb.247503 |
| Abstrakt: | Understanding how internal states such as satiety are connected to animal behavior is a fundamental question in neuroscience. Hydra vulgaris, a freshwater cnidarian with only 12 neuronal cell types, serves as a tractable model system for studying state-dependent behaviors. We found that starved hydras consistently move towards light, while fed hydras do not. By modeling this behavior as a set of three sequences of head orientation, jump distance and jump rate, we demonstrate that the satiety state only affects the rate of the animal jumping to a new position, while the orientation and jump distance are unaffected. These findings yield insights into how internal states in a simple organism, Hydra, affect specific elements of a behavior, and offer general principles for studying the relationship between state-dependent behaviors and their underlying molecular mechanisms. Competing Interests: Competing interests The authors declare no competing or financial interests. (© 2024. Published by The Company of Biologists Ltd.) |
| Databáze: | MEDLINE |
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