PSY398H5 Lecture Notes - Lecture 3: Clitoris, Gestational Age, Neuroprotection
Document Summary
Fsh lh increase as signal for estrogen if egg is not fertilised, it shrivels into corpus luteum. What comes from the ovaries for mating? estrogen doesn"t induce mating in all females, progesterone is needed (prepares for pregnancy, works together with estrogen to promote mating) Graph: rats with ovaries removedestrogen is injected higher estrogen doses has more effect (when no progestrerone is given)---increases lordosis (receptiveness of mouse to mating) if estrogen and progesterone given together. Incentives for females sexual behaviour: procreation, security, feels good. 1. visual cues - in primates, peri-genital skin swelling it is visible, the colourit is like a flag that says yes i am ovulating. 2. chemosensory cues - urinary and vaginal secretion detected by main or accessory olfactory systems. Attract male and maintain his interest - solicitation. Rats - hopping away, waiting, moving back to make (hop-dart)
