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10 results for “Biogenic amines”
Data from: Individual differences are consistent across changes in mating status and mediated by biogenic amines
Although aspects of an individual's state are well-known to influence the expression of behavior, it is still unclear how elements of state affect consistent among-individual differences in behavior. With binary, irreversible elements of state, such as mating status, there may be optimal behavioral phenotypes before and after mating, with individuals often prioritizing mate acquisition before and resource acquisition after. Yet, limited plasticity may prevent optimal behavior in both contexts. Additionally, it remains largely unknown if some consistencies in neural or physiological traits may limit the ability of the organism to respond to state changes. In this study, we investigated how changes in a binary state variable, mating status, affected both the mean expression and among-individual variation in behavior and web structure of the redback spider, Latrodectus hasselti. Furthermore, we explored the role of biogenic amines in potentially mediating individual differences in behavior and web structure. We found that mated females were overall more aggressive than virgin females and also built webs structured primarily for capturing prey rather than safety. We also found that individual differences in behavior and web structure were maintained across mating statuses, which indicates the stability of these traits and may drive personality-specific state-dependent fitness trade-offs. Finally, we found that aggressive spiders had higher central nervous system dopamine levels. Interestingly, web structure was often correlated with a catabolite of tyramine (N-acetyltyramine), suggesting that variation in amine catabolism, and not the concentrations of the amines themselves, may drive individual differences in some traits.
Data from: Individual differences are consistent across changes in mating status and mediated by biogenic amines
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Supplementary files for "Fast and sensitive quantification of AccQ-Tag derivatized amino acids and biogenic amines by UHPLC-UV from complex biological samples"
<p>Supplementary files for "Fast and sensitive quantification of AccQ-Tag derivatized amino acids and biogenic amines by UHPLC-MS from complex biological samples"</p>
Biogenic amines for individual and social learning
<p>Individuals learn about their environment through personal observation or by observing their social conspecifics. The speed-accuracy trade-off associated with these two strategies results in two possible learning phenotypes – slow but more accurate individual learners and fast but more inaccurate social learners. While the costs and benefits of these different learning strategies are well known, we know much less about the possible neurophysiological mechanisms that underlie such cognitive variation. Neurotransmitters, based on their important role in driving cognitive differences in all taxa, are the most likely candidates that underlie the neurophysiological differences between these learning phenotypes. We measured individual honeybees for their performance on an individual and a social learning task followed by quantifying the concentrations of various neurotransmitters in their brains. Our results show that the two learning phenotypes and their accompanying differences in the speed-accuracy trade-off are consistently characterized by the opposite effects of an interaction between octopamine and serotonin and another between octopamine and glutamate. These findings challenge the general notion that social learning is simply an extension of individual learning and provide an important insight into the mechanistic underpinnings of the two different learning phenotypes and the neurophysiological mechanism that underlies slow-fast differences across taxa.</p>
Biogenic amines for individual and social learning
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Data from: Biogenic amine modulation of honey bee sociability and nestmate affiliation
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Data from: Cooperative defence operates by social modulation of biogenic amine levels in the honeybee brain
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A Provocation Study Using Biogenic Amines to Show the Efficacy of Oral Diamine Oxidase Supplementation
ClinicalTrials.gov study NCT02418221. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Insulin and Biogenic Amines in Cardiovascular Disease
ClinicalTrials.gov study NCT00005194. IPD Sharing: Not stated. Countries: 0. Publications: 32.
Gene expression profile of C. elegans biogenic amine synthesis mutants
GEO Series GSE145255. Caenorhabditis elegans. 15 samples. Type: Expression profiling by high throughput sequencing.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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