PSYC 250 Lecture Notes - Lecture 3: Heritability, Heredity, Epigenetics

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 250
• Professor: Sherri Atwood

Document Summary

Prematurity: preterm infant: born before 38 weeks after conception, weight is appropriate for gestational age, small for date infant: born after regular gestation period, 38-42 weeks, but weigh less than normal, variations in birth weight. Low birth weight: body weight of les than 5. 5 pounds. Very low birth weight: weigh less than 3 pounds, higher rates of physical and developmental problems. Extremely low birth weight: weight of less than 2 pounds, (premature) Small for gestation age: lbw infants whose birth weight is way less than normal: stimulations programs: massage help offset negative outcomes, parental contact: important for infants and parents, long term effects: dependent on ses and other environmental factors. Kid"s responsiveness, mother"s competence, family stresses, family and community support. State of arousal of newborns: state: infants lvl of arousal and engagement in the environment. Ranges from deep sleep to intense activity. Newborns sleep about 17 hours a day, they spend most of time in rem sleep and.