PSY 3391 Lecture Notes - Lecture 9: Ejaculation, Preoptic Area, Amygdala

• School: University of Ottawa
• Department: Psychology
• Course: PSY 3391
• Professor: Nafissa Ismail

Document Summary

Androgens a ect the likelihood of mating behaviours by reducing the threshold for these behaviours in the presence of the appropriate stimuli in the appropriate social context. A male with high blood androgen concentration is more likely to copulate with a conspeci c female than a male with low androgen concentration even if all the environmental contexts are available. Androgens play an important role in male sexual behaviour. After puberty, when the testes begin to secrete androgens: Castration reduces sexual behaviours and sexual motivation. Testosterone is necessary for the maintenance of mating behaviour in male rats. Castration leads to a reduction in sexual responsiveness both motivation and performance-wise. In seasonal breeders, like siberian hamsters, testes regress and circulating testosterone falls to undetectable concentrations, and mating behaviour stops. Depending on how much time it"s been since castration, it will play an impact on how you can restore sexual activity and what dose of testosterone you"ll need to help the castration male.