Song-associated reward correlates with endocannabinoid-related gene expression in male European starlings ( Sturnus vulgaris )
Neuroscience, ISSN: 0306-4522, Vol: 346, Page: 255-266
2017
- 24Citations
- 26Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations24
- Citation Indexes24
- 24
- CrossRef22
- Captures26
- Readers26
- 26
Article Description
Vocal communication is required for successful social interactions in numerous species. During the breeding season, songbirds produce songs that are reinforced by behavioral consequences (e.g., copulation). However, some songbirds also produce songs not obviously directed at other individuals. The consequences maintaining or reinforcing these songs are less obvious and the neural mechanisms associated with undirected communication are not well-understood. Previous studies indicate that undirected singing is intrinsically rewarding and mediated by opioid or dopaminergic systems; however, endocannabinoids are also involved in regulating reward and singing behavior. We used a conditioned place preference paradigm to examine song-associated reward in European starlings and quantitative real-time PCR to measure expression of endocannabinoid-related neural markers (CB 1, FABP7, FABP5, FAAH, DAGLα), in brain regions involved in social behavior, reward and motivation (ventral tegmental area [VTA], periaqueductal gray [PAG], and medial preoptic nucleus [POM]), and a song control region (Area X). Our results indicate that starlings producing high rates of song developed a conditioned place preference, suggesting that undirected song is associated with a positive affective state. We found a significant positive relationship between song-associated reward and CB 1 receptors in VTA and a significant negative relationship between song-associated reward and CB 1 in PAG. There was a significant positive relationship between reward and the cannabinoid transporter FABP7 in POM and a significant negative relationship between reward and FABP7 in PAG. In Area X, FABP5 and DAGLα correlated positively with singing. These results suggest a role for endocannabinoid signaling in vocal production and reward associated with undirected communication.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0306452217300416; http://dx.doi.org/10.1016/j.neuroscience.2017.01.028; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85012207012&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/28147243; https://linkinghub.elsevier.com/retrieve/pii/S0306452217300416; https://dx.doi.org/10.1016/j.neuroscience.2017.01.028
Elsevier BV
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