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Science 31 October 1975:
Vol. 190. no. 4213, pp. 484 - 486
DOI: 10.1126/science.1174387
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Articles

Science, Vol 190, Issue 4213, 484-486
Copyright © 1975 by American Association for the Advancement of Science

articles

Ejaculatory pattern in female rats without androgen treatment

DE Emery and BD Sachs

Adult female rats receiving long-term estrogen treatment displayed the species-typical motor pattern of ejaculation during copulation. This hormone treatment produced pituitary hypertrophy and concomitant pressure damage to brain areas dorsal to the pituitary, but did not cause clitoral hypertrophy. The demonstration of the ejaculatory pattern in perinatally untreated female rats indicates that the potential for the expression of the ejaculatory or "orgasmic" pattern is not dependent on exogenous androgen at any stage of development and is more widely represented among female mammals than previously believed.


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