sexual behaviour Flashcards
What are main sex hormones?
usually steroids based on cholestoral
What type of sex hormone is testosterone?
ANDROGEN - male hormone
higher in males
What are female hormones?
oestrogen and progesterone
Who came up with human sexual response?
Masters and Johnson
What are stages in human sexual response?
excitement, plateau, orgasm, resolution
What is monogamy?
where one female and one male are in an exclusive relationship
What is Polyandry?
Where one female mates with many males (but male with just that female)
What is polygyny?
When one male mates with many females ( but female just has that one mate)
(many mammalian species)
What is larger in male brains than female brains?
sexually dimorphic nucleus (SDN) of pre-optic area in hypthalamus.
When do women experience better performance in spatial reasoning tests ?
when oestrogen levels are lowest.
When does initiation of sexual encounters increase in females?
before ovulation
WHat to do with the hippocampus is related to oestrogen levels?
the synaptic density of hippocampus
What happens in twins (male and female) calfs?
Female calf is exposed to testosterone and usually is bull-like and infertile (free martin)
