A circadian-dependent preference for light displayed by Xenopus tadpoles is modulated by serotonin
Summary: Innate visually guided behaviors are thought to promote survival by guiding organisms to sources of food and safety and away from harm without requiring learning. Historically, innate behaviors have been considered hard-wired and invariable, but emerging evidence shows that many innate beha...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | iScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004222016479 |
| _version_ | 1811255817867886592 |
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| author | John R. Bruno Uwemedimo G. Udoh Jason G. Landen Paige O. Osborn Carson J. Asher Jasper E. Hunt Kara G. Pratt |
| author_facet | John R. Bruno Uwemedimo G. Udoh Jason G. Landen Paige O. Osborn Carson J. Asher Jasper E. Hunt Kara G. Pratt |
| author_sort | John R. Bruno |
| collection | DOAJ |
| description | Summary: Innate visually guided behaviors are thought to promote survival by guiding organisms to sources of food and safety and away from harm without requiring learning. Historically, innate behaviors have been considered hard-wired and invariable, but emerging evidence shows that many innate behaviors are flexible and complex due to modulation. Here, we investigate the modulation of the innate preference for light displayed by the Xenopus laevis tadpole, an exceptionally invasive and well-studied organism that is known to display several different innate visually guided behaviors. We found that tadpoles display a circadian-regulated oscillation in their preference for light over dark which can be altered by experimentally increasing or decreasing levels of serotonin transmission. We also found that endogenous levels of serotonin transmission during the day maintain a consistently moderate preference for light. Theoretically, a moderate preference for light, as opposed to a strong preference, optimizes survival by rendering tadpoles’ behavior less predictable. |
| first_indexed | 2024-04-12T17:29:43Z |
| format | Article |
| id | doaj.art-ffbed3633b9f46b3953c634a50f1754e |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-04-12T17:29:43Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-ffbed3633b9f46b3953c634a50f1754e2022-12-22T03:23:10ZengElsevieriScience2589-00422022-11-012511105375A circadian-dependent preference for light displayed by Xenopus tadpoles is modulated by serotoninJohn R. Bruno0Uwemedimo G. Udoh1Jason G. Landen2Paige O. Osborn3Carson J. Asher4Jasper E. Hunt5Kara G. Pratt6Department of Zoology and Physiology, University of Wyoming, Laramie, WY, USADepartment of Zoology and Physiology, University of Wyoming, Laramie, WY, USA; Program in Neuroscience, University of Wyoming, Laramie, WY, USADepartment of Zoology and Physiology, University of Wyoming, Laramie, WY, USADepartment of Zoology and Physiology, University of Wyoming, Laramie, WY, USADepartment of Zoology and Physiology, University of Wyoming, Laramie, WY, USANuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UKDepartment of Zoology and Physiology, University of Wyoming, Laramie, WY, USA; Program in Neuroscience, University of Wyoming, Laramie, WY, USA; Corresponding authorSummary: Innate visually guided behaviors are thought to promote survival by guiding organisms to sources of food and safety and away from harm without requiring learning. Historically, innate behaviors have been considered hard-wired and invariable, but emerging evidence shows that many innate behaviors are flexible and complex due to modulation. Here, we investigate the modulation of the innate preference for light displayed by the Xenopus laevis tadpole, an exceptionally invasive and well-studied organism that is known to display several different innate visually guided behaviors. We found that tadpoles display a circadian-regulated oscillation in their preference for light over dark which can be altered by experimentally increasing or decreasing levels of serotonin transmission. We also found that endogenous levels of serotonin transmission during the day maintain a consistently moderate preference for light. Theoretically, a moderate preference for light, as opposed to a strong preference, optimizes survival by rendering tadpoles’ behavior less predictable.http://www.sciencedirect.com/science/article/pii/S2589004222016479Behavioral neuroscienceMolecular neuroscience |
| spellingShingle | John R. Bruno Uwemedimo G. Udoh Jason G. Landen Paige O. Osborn Carson J. Asher Jasper E. Hunt Kara G. Pratt A circadian-dependent preference for light displayed by Xenopus tadpoles is modulated by serotonin iScience Behavioral neuroscience Molecular neuroscience |
| title | A circadian-dependent preference for light displayed by Xenopus tadpoles is modulated by serotonin |
| title_full | A circadian-dependent preference for light displayed by Xenopus tadpoles is modulated by serotonin |
| title_fullStr | A circadian-dependent preference for light displayed by Xenopus tadpoles is modulated by serotonin |
| title_full_unstemmed | A circadian-dependent preference for light displayed by Xenopus tadpoles is modulated by serotonin |
| title_short | A circadian-dependent preference for light displayed by Xenopus tadpoles is modulated by serotonin |
| title_sort | circadian dependent preference for light displayed by xenopus tadpoles is modulated by serotonin |
| topic | Behavioral neuroscience Molecular neuroscience |
| url | http://www.sciencedirect.com/science/article/pii/S2589004222016479 |
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