PSY 225 Lecture Notes - Lecture 5: Nun Study, Genetic Programming, Blood Sugar
Document Summary
Human growth: interaction of genetic and environmental factors. Thyroid gland: growth of central nervous system; metabolism (burning of energy) Axons are covered in myelin (fatty sheath) Determined by both genetic and environmental influences. Changes in health involve both gains and losses. By age 2, 75% of its adult weight. By age 5, 90% of its adult weight. Neuromigration- locate to dif areas of the brain. Reflexes are unlearned, involuntary responses to stimuli survival reflexes are adaptive. Ex) breathing, blinking, sucking ex) grasping reflex primitive reflexes are less adaptive and usually disappear early. Rem sleep: rapid-eye-movement, fluctuating heart rate and bp. Learning how to survive in a changing environment. Cephalocaudal and proximodistal principles of growth continue. Boys- more skilled in throwing and kicking. Girls- more skilled in hopping and in manual performances. Boys continue growing till 18-20 process: sexual maturation: Semenarche: 1st ejaculation of seminal fluid (cid:862)ta(cid:374)(cid:374)er scale(cid:863) Presence of unrelated male in household (affects menstruation) comes earlier.
