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Review
.2022 Mar;65(3):466-499.
doi: 10.1007/s11427-021-2043-2. Epub 2021 Dec 30.

Neural circuit control of innate behaviors

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Review

Neural circuit control of innate behaviors

Wei Xiao et al. Sci China Life Sci.2022 Mar.

Abstract

All animals possess a plethora of innate behaviors that do not require extensive learning and are fundamental for their survival and propagation. With the advent of newly-developed techniques such as viral tracing and optogenetic and chemogenetic tools, recent studies are gradually unraveling neural circuits underlying different innate behaviors. Here, we summarize current development in our understanding of the neural circuits controlling predation, feeding, male-typical mating, and urination, highlighting the role of genetically defined neurons and their connections in sensory triggering, sensory to motor/motivation transformation, motor/motivation encoding during these different behaviors. Along the way, we discuss possible mechanisms underlying binge-eating disorder and the pro-social effects of the neuropeptide oxytocin, elucidating the clinical relevance of studying neural circuits underlying essential innate functions. Finally, we discuss some exciting brain structures recurrently appearing in the regulation of different behaviors, which suggests both divergence and convergence in the neural encoding of specific innate behaviors. Going forward, we emphasize the importance of multi-angle and cross-species dissections in delineating neural circuits that control innate behaviors.

Keywords: feeding; innate behavior; neural circuit; social behavior; urination.

© 2021. Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature.

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