Aggression and Attraction

Genetic Influences

Y chromosome, MAOA genes

Neural Influences

amygdala and frontal lobes

Biochemical Influences

testosterone and alcohol (drugs)

social scripts

culturally modeled guide for how to act in various situations

proximity

friendship's most powerful predictor

modern matchmaking

Internet-formed friendships and romantic relationships are on average slightly more likely to last and be satisfying.

Nearly a quarter of heterosexual and two-thirds of same-sex couples met online.

passionate love

an aroused state of intense positive absorption in another, usually present at the beginning of a love relationship

companionate love

the deep affectionate attachment we feel for those with whom our lives are intertwined

equity

a condition in which people receive from a relationship in proportion to what they give to it

self-disclosure

the act of revealing intimate aspects of oneself to others

positive support

positive interactions outnumber negative interactions