Topic5-DevelopmentStudents.ppt - Childhood Development Dr Paul Wehr Agenda \u2022 Announcements \u2013 Final Exam Tuesday December 10th 7:30pm \u2013 9:30pm \u2022

Topic5-DevelopmentStudents.ppt - Childhood Development Dr...

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Childhood Development Dr. Paul Wehr
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Agenda Announcements: Final Exam: Tuesday December 10 th , 7:30pm – 9:30pm. Development: What kinds of changes are developmental psychologists interested in studying? What changes take place across different points of the lifecycle? What factors can influence the changes that take place during development?
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Introduction to Development Development: age related changes that occur as individual progresses from conception to death. Predictable sequence. Life-history Theory Prenatal & Childhood Development: Brain development. Cognitive Development. Moral Development. Attachment. Development continues through adolescence and adulthood.
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Life History Reproductive Effort Somatic Effort Parenting Effort Mating Effort Men invest more Women invest more Life-history Theory
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Prenatal Development Prenatal Period: conception to birth. germinal stage (first 2 weeks): zygote : one-celled organism resulting from conception. Migration along fallopian tube; implantation in uterine wall. placenta forms. 20% of pregnancies fail. embryonic stage (2 weeks – 2 months): Organs begin to develop. Risk of miscarriage and birth defects is high. fetal stage (2 months – birth): Bones and muscles; movement. Organs begin to function; sex organs develop. (heart beat) Rapid expansion of brain tissue. Age of viability : 22 – 26 weeks.
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Prenatal Environment Maternal Nutrition: Maternal malnutrition increases risk of birth complications, neurological defects, schizophrenia. Low birth weight increases risk for heart disease & diabetes. Maternal Drug Use: Effects vary dramatically. Fetal alcohol syndrome : Birth: micro-cephaly, heart defects. Childhood: hyperactivity, retarded mental & motor development. Adults: depression, suicide, criminal behavior. tobacco : reduces flow of oxygen/nutrients to fetus – miscarriage, stillbirth, prematurity, SIDS. Maternal Illness: Genital herpes & HIV are frequently fatal for newborn.
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Pregnancy Sickness Pregnancy Sickness (nausea, vomiting, food aversions) might be an adaptive reaction to toxins present in food. teratogens are carcinogenic & mutagenic . Sickness severity related to toxicity: coffee , spoiled meat, meat, eggs, vegetables . Most severe during first trimester; disappears after 14 weeks.
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