PSY 110 Lecture Notes - Lecture 4: Longitudinal Study, Fetal Alcohol Spectrum Disorder, Philtrum
Document Summary
Concepion: a single sperm cell (male) penetrates the outer coaing of the egg (female) and fuses to form one ferilized cell. A zygote is a ferilized egg: muliplies to become increasingly diverse. At about 14 days the zygote turns into an embryo. Prenatal development: at nine weeks, an embryo turns in a fetus. Teratogens: agents that cause birth defects: rubella, thalidomide (not anymore; an ani-sickness drug used in europe, heroin, alcohol: fetal alcohol syndrome (fas) Relexes: geneically wired behaviors that are crucial for survival: gripping, toe curling, startle (moro, rooing, galant, these disappear as infants develop voluntary control over their behavior. Infancy and childhood span from birth to the teenage years. During these years, the individual grows physically, cogniively, and socially. Dramaic increase in synapic connecions (some pruning also) Myelinaion coninues ater birth: visual pathways: six months, auditory pathways: 4-5 years. Brain imaging techniques illuminate development changes in the brain from 3-15 years postnatal.
