期刊
JOURNAL OF COMPARATIVE NEUROLOGY
卷 519, 期 18, 页码 3599-3639出版社
WILEY
DOI: 10.1002/cne.22735
关键词
social behavior; comparative neuroanatomy; amphibian; reptile; bird; teleost; reward system; social behavior network; limbic system; neural circuits
资金
- National Science Foundation (NSF) [DDIG 1011253, IOS 0843712]
- Alfred P. Sloan Foundation
- Dwight W. and Blanche Faye Reeder Centennial Fellowship in Systematic and Evolutionary Biology
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [0843712] Funding Source: National Science Foundation
- Division Of Integrative Organismal Systems
- Direct For Biological Sciences [1011253] Funding Source: National Science Foundation
All animals evaluate the salience of external stimuli and integrate them with internal physiological information into adaptive behavior. Natural and sexual selection impinge on these processes, yet our understanding of behavioral decision-making mechanisms and their evolution is still very limited. Insights from mammals indicate that two neural circuits are of crucial importance in this context: the social behavior network and the mesolimbic reward system. Here we review evidence from neurochemical, tract-tracing, developmental, and functional lesion/stimulation studies that delineates homology relationships for most of the nodes of these two circuits across the five major vertebrate lineages: mammals, birds, reptiles, amphibians, and teleost fish. We provide for the first time a comprehensive comparative analysis of the two neural circuits and conclude that they were already present in early vertebrates. We also propose that these circuits form a larger social decision-making (SDM) network that regulates adaptive behavior. Our synthesis thus provides an important foundation for understanding the evolution of the neural mechanisms underlying reward processing and behavioral regulation. J. Comp. Neurol. 519:35993639, 2011. (c) 2011 Wiley-Liss, Inc.
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