PSYC 2010U Lecture Notes - Lecture 11: Automaticity, Feedback, Thyroid
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Adolescent = (cid:862)adoles(cid:272)e(cid:374)(cid:272)e (cid:271)egi(cid:374)s i(cid:374) (cid:271)iolog(cid:455) a(cid:374)d e(cid:374)ds i(cid:374) (cid:272)ulture. (cid:863) Puberty: the process by which an immature individual takes on adult form and function. Changes in circulatory and respiratory systems: sexual maturation. Beginning of 2-3 year growth spurt: timing. Different parts of the body develop at different rates. To regulate: levels of hormones in the body. Glands and hormones: glands = organs that stimulate particular parts of the body to respond in particular ways. Thyroid gland: hormones = substances secreted by one or more endocrine glands. Endocrine system: hypothalamus, pituitary, gonadal axis (hpga) Feedback loop to regulate levels of hormones. What triggers puberty: rising level of protein produced by fat cells, leptin. Menarche occurs at a relatively consistent weight in girls. Fat must (cid:373)ake up 17% of girls" (cid:271)od(cid:455) (cid:449)eight for (cid:373)e(cid:374)ar(cid:272)he to start a(cid:374)d (cid:272)o(cid:374)ti(cid:374)ue. Monozygotic = menarche occurs within 2 to 3 months. Dizygotic = menarche occurs within 10 to 12 months.
