Octopamine neurons mediate reward signals in social learning in an insect
Summary: Social learning is found in many animals, but its mechanisms are not understood. We previously showed that a cricket that was trained to observe a conspecific staying at a drinking apparatus exhibited an increased preference for the odor of that drinking apparatus. Here we investigated a hy...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | iScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004223006892 |
| _version_ | 1797836909517471744 |
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| author | Yuma Segi Kohei Hashimoto Makoto Mizunami |
| author_facet | Yuma Segi Kohei Hashimoto Makoto Mizunami |
| author_sort | Yuma Segi |
| collection | DOAJ |
| description | Summary: Social learning is found in many animals, but its mechanisms are not understood. We previously showed that a cricket that was trained to observe a conspecific staying at a drinking apparatus exhibited an increased preference for the odor of that drinking apparatus. Here we investigated a hypothesis that this learning is achieved by second-order conditioning (SOC), i.e., by associating conspecifics at a drinking bottle with water reward during group drinking in the rearing stage and then associating an odor with a conspecific in training. Injection of an octopamine receptor antagonist before training or testing impaired the learning or response to the learned odor, as we reported for SOC, thereby supporting the hypothesis. Notably, the SOC hypothesis predicts that octopamine neurons that respond to water in the group-rearing stage also respond to a conspecific in training, without the learner itself drinking water, and such mirror-like activities mediate social learning. This awaits future investigation. |
| first_indexed | 2024-04-09T15:17:32Z |
| format | Article |
| id | doaj.art-c22d4730e388441daf846ef670374a63 |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-04-09T15:17:32Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-c22d4730e388441daf846ef670374a632023-04-29T14:57:41ZengElsevieriScience2589-00422023-05-01265106612Octopamine neurons mediate reward signals in social learning in an insectYuma Segi0Kohei Hashimoto1Makoto Mizunami2Graduate School of Life Science, Hokkaido University, Sapporo 060-0810, JapanGraduate School of Life Science, Hokkaido University, Sapporo 060-0810, JapanFaculty of Science, Hokkaido University, Sapporo 060-0810, Japan; Corresponding authorSummary: Social learning is found in many animals, but its mechanisms are not understood. We previously showed that a cricket that was trained to observe a conspecific staying at a drinking apparatus exhibited an increased preference for the odor of that drinking apparatus. Here we investigated a hypothesis that this learning is achieved by second-order conditioning (SOC), i.e., by associating conspecifics at a drinking bottle with water reward during group drinking in the rearing stage and then associating an odor with a conspecific in training. Injection of an octopamine receptor antagonist before training or testing impaired the learning or response to the learned odor, as we reported for SOC, thereby supporting the hypothesis. Notably, the SOC hypothesis predicts that octopamine neurons that respond to water in the group-rearing stage also respond to a conspecific in training, without the learner itself drinking water, and such mirror-like activities mediate social learning. This awaits future investigation.http://www.sciencedirect.com/science/article/pii/S2589004223006892EntomologyNeuroscienceBehavioral neuroscience |
| spellingShingle | Yuma Segi Kohei Hashimoto Makoto Mizunami Octopamine neurons mediate reward signals in social learning in an insect iScience Entomology Neuroscience Behavioral neuroscience |
| title | Octopamine neurons mediate reward signals in social learning in an insect |
| title_full | Octopamine neurons mediate reward signals in social learning in an insect |
| title_fullStr | Octopamine neurons mediate reward signals in social learning in an insect |
| title_full_unstemmed | Octopamine neurons mediate reward signals in social learning in an insect |
| title_short | Octopamine neurons mediate reward signals in social learning in an insect |
| title_sort | octopamine neurons mediate reward signals in social learning in an insect |
| topic | Entomology Neuroscience Behavioral neuroscience |
| url | http://www.sciencedirect.com/science/article/pii/S2589004223006892 |
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