PS276 Lecture Notes - Lecture 1: Underarm Hair, Sex Organ, Pubic Hair
Document Summary
Gonads: levels, hpa is set to a certain level, when androgens and estrogens fall below a certain level, the hypo no longer inhibits the pituitary, therefore it stimulates the release of sexx hormones. Females need to produce a certain amount of fat order to start puberty. As the level of leptin incres, it tells the hypo to stop inhibiting puberty. Therefore the gnrh neurons are excited and the hypo starts a cascade of hormonal events: how hormones influence adolescent dev, organizational role: Before birth, hormones shape or organize the brain in ways tht we won"t be able to see until childhood or adolescence. Starts off as a female baby until exposed to testosterone. The presence or absence of certain hormones early in life may program the brain and central nervous system to develop and behave in certain ways later on: activation role:
