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Developmental Psychology

Developmental Psychology. The study of YOU from womb to tomb. We are going to study how we change physically, socially, cognitively and morally over our lifetimes. Nature Versus Nurture. While going through this unit always be in the back of your head…. Are you who you are because of:

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Developmental Psychology

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  1. Developmental Psychology The study of YOU from womb to tomb. We are going to study how we change physically, socially, cognitively and morally over our lifetimes.

  2. Nature Versus Nurture While going through this unit always be in the back of your head…. Are you who you are because of: • The way you were born- Nature. • The way you were raised- Nurture.

  3. Other Issues: • Continuity v. Stages? • Stability v. Change?

  4. Research Methods Cross-Sectional Studies Longitudinal Studies One group of people studied over a period of time. • Participants of different ages studied at the same time.

  5. Physical Development • Focus on our physical changes over time.

  6. Prenatal Development • Conception begins with the drop of an egg and the release of about 200 million sperm. • The sperm seeks out the egg and attempts to penetrate the eggs surface.

  7. Once the sperm penetrates the egg- we have a fertilized egg called…….. The Zygote The first stage of prenatal development. Lasts about two weeks and consists of rapid cell division.

  8. Zygotes • Less than half of all zygotes survive first two weeks. • About 10 days after conception, the zygote will attach itself to the uterine wall. • The outer part of the zygote becomes the placenta (which filters nutrients).

  9. After two weeks, the zygote develops into an Embryo

  10. Embryo Stage • Lasts about 6 weeks. • Heart begins to beat and the organs begin to develop.

  11. By nine weeks we have… A Fetus

  12. The Fetus Stage • By about the 6th month, the stomach and other organs have formed enough to survive outside of mother. • At this time the baby can hear (and recognize) sounds and respond to light.

  13. Teratogensharmful agents to the prenatal environment

  14. Fetal Alcohol Syndrome • Physical and cognitive abnormalities in children caused by a pregnant women’s heavy drinking. • Severe cases symptoms include facial disproportions.

  15. Healthy Newborn Reflexes: (Inborn automatic responses) • Rooting • Sucking • Grasping • Moro • Babinski Click on pictures to see clips of reflexes.

  16. Cognitive Development

  17. Healthy Newborns • Turn head towards voices . • See 8 to 12 inches from their faces. • Gaze longer at human like objects right from birth.

  18. Healthy Newborns • Habituation: a decrease in responding with repeated stimulation

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