PSY 1305 Lecture Notes - Lecture 7: Fetal Alcohol Spectrum Disorder, Childhood Amnesia, Synaptic Pruning

• School: Baylor University
• Department: Psychology
• Course: PSY 1305
• Professor: Danielle Young

Document Summary

Zygote: the life cycle begins at conception, when one sperm cell unites with an egg to form a zygote--fertilized egg; it enters a 2-week period of rapid cell division and develops into an embryo. Embryo: the zygote"s i(cid:374)(cid:374)er (cid:272)ells (cid:271)e(cid:272)o(cid:373)e the e(cid:373)(cid:271)ryo, a(cid:374)d the outer (cid:272)ells (cid:271)e(cid:272)o(cid:373)e the pla(cid:272)e(cid:374)ta-- developing human organism from about 2 weeks after fertilization through the second month. In the next 6 weeks, body organs begin to form and function, and by 9 weeks, the fetus is recognizably human: longest stage. Prenatal development is not risk-free: teratogen. Agent, such as a chemical or virus, that can reach the embryo or fetus during prenatal development and cause harm: fetal alcohol syndrome (fas) Physi(cid:272)al a(cid:374)d (cid:373)e(cid:374)tal a(cid:271)(cid:374)or(cid:373)alities i(cid:374) (cid:272)hildre(cid:374) (cid:272)aused (cid:271)y a preg(cid:374)a(cid:374)t (cid:449)o(cid:373)a(cid:374)"s heavy drinking. In severe cases, signs include a small, out-of-proportion head and abnormal facial features.