Mesencephalic participation in the control of sexual behavior in the female rat

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In 2 experiments with 78 female albino rats, electric stimuli applied to both pudendal nerves evoked field potentials, unit responses, and multiunit responses in the ventrolateral midbrain, in and around the peripeduncular nucleus. Bilateral lesions placed in this region suppressed sexual behavioral responses (lordosis and courting behavior) of ovariectomized Ss primed with 5, 10, 100, and 1,000 μg of estradiol benzoate and 2 mg/kg progesterone. It is proposed that the region in question represents a relay station for the integration of sensory and endocrine information concerned in the control of receptive sexual behavior in the female rat. (54 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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