lecture 10 Flashcards
3)Two dimensional scheme
Homo eroticism vs heteroeroticism
typology:
heterosexual or homosexual
2)Kinsey’s continuum
What sorts of sexual behavior do people engage in on a scale
genetic theory of sexual orientation
theory with most support
Comes from twin studies:
Identical twins: when one is gay the other is 50% likely to be gay
Strong strong basis in genetics
prenatal factors
differences to exposure in hormones
Critical period during fetal development when hypothalamus develops when sexual orientation is determined
Birth order effect: gay men are more likely to be born more later in birth order, more likely to have older brothers
With each pregnancy, the mother develops antibodies against the gene on y chromosome
~This process affects sexual orientation
Brain differences
Structural differences in brain, differences in anterior hypothalamus
Not much evidence in this
Hormonal factors
Gay men have less testosterone then straight men
this is not supported
Charter of rights and freedoms
Everyone should be treated equally regardless of ethnicity and sexual orientation
Same-sex marriage
Legalized federally in 2005
Stats. Can (2006) 37,885 same-sex common law couples; 7,465 same-sex married couples