PSYA02H3 Lecture Notes - Lecture 4: Teratology, Sexual Differentiation, Zygote
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PSYA02H3 Full Course Notes
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Slide 2: different species have different child bearing. Slide 3: longitudinal: one spefic person, see how that one develop through time. Cross-sectional: see how those group changes over time (take different age group) Slide 4: zygote stage: began as a single fertilize cell. The cell in the zygote stage: develop in different cell that perform different task: same dna. Embryonic state: hearts begin to beat: sexual differentiation occurs, cocain, tobacco, alcohol can affect the baby. Fetal stage: bones start to form, really starts to grow. Depending on the body there is different sensitivity level to the toxins. The brain is sensitive to toxin for the whole period. For the first four months: strongly dependent on the mother. 1 year: standing alone (least by 5 month) 2 months the baby start smiling to the mother. Very early: startle to sounds: knows his mother"s voice, when in womb already listening to things, learning sounds. 2 years old they can recognize body part.
