Later On

A blog written for those whose interests more or less match mine.

Fetuses Prefer Face-Like Images Even in the Womb

leave a comment »

Ed Yong writes in the Atlantic:

It is dark in the womb—but not that dark. Human flesh isn’t fully opaque, so some measure of light will always pass through it. This means that even an enclosed space like a uterus can be surprisingly bright. “It’s analogous to being in a room where the lights are switched off and the curtains are drawn, but it’s bright outside,” says Vincent Reid from the University of Lancaster. “That’s still enough light to see easily.”

But what exactly do fetuses see? And how do they react to those images? To find out, Reid shone patterns of red dots into the wombs of women in the third trimester of their pregnancies, and monitored the babies within using high-definition ultrasound. By looking at how the babies turned around, Reid showed that they have a preference for dots arranged in a face-like pattern—just as newborn infants do.

“This is the first time that anyone’s been able to deliver an image to a fetus,” Reid says. And it will finally allow scientists to study the mental abilities of humans at the earliest possible stage of our development—before we are even b

For decades, scientists have known that third-trimester babies can perceive sounds and other stimuli while still in the womb. For example, in 1980, Anthony DeCasper and William Fifer asked pregnant women to read The Cat in the Hat to their fetuses, again and again for the last 7 weeks of their pregnancies. As soon as the babies were born, DeCasper and Fifer gave them pacifiers. The babies could then choose to hear a recording of either The Cat in the Hat or a different children’s story, by sucking at different times. And they sucked for the cat.

“People showed that a fetus could learn, was aware of elements of language, and preferred its mother’s own voice,” says Reid. But while such studies looked at hearing, touch, taste, and balance, vision was bizarrely neglected. A lot of researchers have looked at how newborns see the world, but most suspected that there was no way of doing similar tests before babies were actually born. . .

Continue reading.

Written by LeisureGuy

11 June 2017 at 2:25 pm

Posted in Science

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s