It's when you're brain dead, your heart's stopped beating, you don't react to touch. Doctors say the science of fetal development has remained the same for decades. After an egg is fertilized, it spends a week in the fallopian tube before traveling to the uterus. Once there, it grows from a ball of cells to something that looks like a hollowed-out raspberry. The heart is one of the very first structures to show activity as the fetus is developing.
Brain waves are a more complicated matter.
Larsen said it is still very hard to distinguish between the electrical impulses being emitted from the mother or the child. Science, he said, still has no meaningful way to study or interpret the data. Staff writer R.H. Melton contributed to this report. News Jobs AP Shopping Archives Entertain.