Resumen de First Impressions.
The article focuses on research into fetal development and the ability of fetuses to interact with their environment. It states that three-dimensional and four-dimensional ultrasound provide additional information on the behavior and physiology of fetuses, while noninvasive devices can measure electrical activity in the developing brain. It mentions the ability of fetuses to move in the amniotic sac and move limbs into their mouth, and comments on the development of vision, hearing and taste.
