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Scientists find brain circuit in females that controls mating acceptance based on reproductive state.
Scientists at the Champalimaud Foundation discovered a neural circuit in the brain's ventromedial hypothalamus (VMH) that controls whether female mammals accept or reject mating attempts.
This circuit, sensitive to progesterone, influences defensive behaviors like kicking during non-receptive phases, while reducing activity during fertile periods to allow mating.
The findings, published in Neuron, reveal a dual-neuron system that regulates sexual behavior based on reproductive state.
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Los científicos encuentran un circuito cerebral en las hembras que controla la aceptación del apareamiento basado en el estado reproductivo.