Animal analogs of human sexuality

[Miser]

Below are articles which discusses the different results of brain changes due to sexual activity in animals: (respectively) down regulation of androgen receptors, up regulation of estrogen receptors and the release of dopamine blocking opioids.

 

http://www.ncbi.nlm.nih.gov/pubmed/23707935

http://www.ncbi.nlm.nih.gov/pubmed/17239879

http://www.ncbi.nlm.nih.gov/pubmed/11844571

 

How well do you think these animal subjects serve in elucidating the relationship in humans between ejaculation and brain changes? In addition, do we know what these androgen receptors and estrogen receptors in these particular brain regions do?

Edited September 21, 2013 by Miser