Developmental Psychology

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Developmental Psychology

• Prenatal

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Periods of Prenatal Development

• Germinal
• Embryonic
• Fetal

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Germinal
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Embryonic Period

• Cephalocaudal Development
• Proximodistal Development
• Progression

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Embryonic Period
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Fetal Period
Fetal Heartbeat at 10 weeks 160 bpm
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Fetal Period
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Fetal Period
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Fetal Period
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Fetal Period

• DeCasper and Fifer (1980)

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Fetal Period
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Fetal Period
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Genetics

• Genotype
• Phenotype
• Birth Defects
• Teratogens

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Prenatal Brain Development

• Comparison
• 25 days nervous system like a worms
• 40-50 days (about 7 weeks)brain of a primitive
  vertebrate, like a fish.
• 100 days (over 3 months) brain of a mammal
• 5 monthsthat of a primate brain, like a
  chimpanzee.

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Prenatal Brain Development

• Process
• Development of neural tube
• Central nervous system develops
• Brain develops
• Spinal cord develops
• Migration of neurons
• Specialization of neurons