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The Endowment for Human Development
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Behavioral States


7 months, 2 weeks

From The Biology of Prenatal Development.Buy Now

Script: 在懷孕的最後4個月, 胎兒顯示同等活動期, 中間插有休息期。 這些行為狀態 反應中樞神經系統 不斷變化的複雜性。

All ages referenced to fertilization, not last menstrual period. One month = 4 weeks.
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Fetus Appears Less Wrinkled
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Sound Discrimination
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