PSY398H5 Lecture Notes - Lecture 2: Wicket-Keeper, Antiestrogen, Libido
Document Summary
What happens when sexual pleasure is experienced and how does that pleasure activate neurochemical systems in the brain. One major result of sex research is that we have sex because it feels good, not because we want to make babies. If a sexual behavior is observed across all pop then its biological behavior (its not learnt/ natural behaviour) Example: masturbation, homosexuality these are not learnt. Seminal vesicles carries sperm out, swells when activating sexual behavior. Long known that castration eliminates mating in most species: something in testes regulates sexual behaviour, through 1800s seminal vesicle swelling activates behaviour. Steinach (1894) remove seminal vesicles of rats had no effect on mating must be something else in testes. Brown-sequard (1899) inject homogenized dog/pig testes: reported restorative powers - energy, libido, stamina. Stone (1922) first real examination of sex in male rats: rats first copulate at 50 days old, still copulate for 14 days after castration.
