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Chapter 9 Psych 1 Online Stud
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Chapter 9 Psych 1 Online Stud

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  • 1. Chapter 9 Lifespan Development
  • 2. Sex and Biology Period of Zygote
  • 3. Sex and Biology
  • 4. Sex and Biology
  • 5. Female Reproductive Organs
  • 6. Fertilization Fertilization = sperm + ovum (the gametes) form a single new cell, a zygote.
  • 7. The Start of Life Genetics & Prenatal Development Fertilization: The Moment of Conception Famous picture from Life Magazine
  • 8. The Start of Life The Onset of Development Germinal Stage (first two weeks) Germinal disc 0.8 hours post fertilization Blastocyst
  • 9. The Start of Life The Onset of Development Germinal Stage (first two weeks) Three days post fertilization. Artificially inseminated, 69 Chromosomes
  • 10. This single cell is transformed into something resembling a person by the human genetic code. Zygote
  • 11. Some important facts: • The 23rd chromosome determines the sex of the child. – Females are XX. – Males are XY. – The FATHER’s sperm determines the sex of the child.
  • 12. Klinefelter’s Syndrome
  • 13. Turner’s Syndrome
  • 14. The closer the genetic link between two individuals, the more similar their IQ scores are. Nature or nurture?
  • 15. The Start of Life The Onset of Development Near end of embryonic stage Embryonic Stage (two to eight weeks)
  • 16. The Start of Life The Onset of Development Fetal Stage (eight weeks until birth)
  • 17. Labor
  • 18. Cesarean Section
  • 19. The Competent Newborn: Milestones •Head up •Rolling over •Standing alone •Crawling •Cruising •Walking • One word • Sentences Infants understand a LOT without being able to produce language.
  • 20. Psychosocial Development In Childhood • Harlows: Attachment determined by contact comfort, rather than food. • (Attachment to an inanimate object is not sufficient for normal social development.) • [next]
  • 21. Cognitive Development In Childhood • Sensorimotor • Preoperational (near end of second year – ~7): Operation = mental action – Symbolic functioning – Centration; egocentrism [next] • Concrete Operations • Formal Operations – Love, shades of gray, values
  • 22. Adolescence • Puberty – Development of primary and secondary sex characteristics. – “The adolescent growth spurt” – Girls begin their growth spurts earlier (approx. 2 years) and complete them earlier. – By age 13, boys are taller on average. • Androgens • Estrogens • Menarche • Cultural trends • Secular trends shows earlier maturation (next slide)
  • 23. Young Adulthood • Parenting – Authoritarian – Authoritative – Permissive – Negligent – Democratic
  • 24. Middle Adulthood • Physical changes > characterized by a gradual decline. • Visual and auditory sensitivity declines, muscle strength decreases, and reaction time • Hormonal changes > menopause; marks the end of childbearing. • Decrease in estrogen production can lead to osteoporosis.
  • 25. Late Adulthood • increase in susceptibility to disease. • Dementia: degenerative, irreversable • ~1/3 of 85+ may suffer from Alzheimer's disease • Erikson: integrity versus despair – People who are unable to put their life in perspective may experience anger, bitterness, and despair.
  • 26. Death, Dying, and Bereavement • Elisabeth Kubler-Ross – Denial – Anger – Bargaining – Depression – Acceptance