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Study finds sense of touch develops before birth

A study found how the "map" for the sense of touch develops in the brain.

Pixabay
  • Scientists looked at brains of mice to track embryonic development of the sense of touch.
  • They found that a "map" for the sense of touch is in place before birth.
  • Human cerebral cortexes are similarly organized, indicating that the same process likely takes place.

Figuring out exactly how we get the sense of touch has not been conclusively understood so far, despite previous studies. A new study suggests that it develops in the brain before birth.

The research was carried out on mice by a team from the Institute of Neurosciences of Alicante of the ISIC in Spain. They focused on understanding embryonic brain development and found that a "map" controlling the senses is there before the baby is born.

Prior studies indicated that once a sense of touch develops a kind of map becomes a part of the cerebral cortex. The theory was that data points from sensory input are added to this map during the newborn's development.

The new research from Spain shows that this sensory map was created in mice while they were still in embryonic stages. They also found that the map's appearance was linked to signals sent to the cerebral cortex from the thalamus – the part of the brain that relays sensory and motor signals and regulates consciousness and sleep.

The scientists think the same process likely takes place in humans since "the organization of the cortex is conserved evolutionarily between species."

How a child's brain develops through early experiences

Mice were used for the experiments because their sensory maps are contained within cortical barrels that can be made darker by staining. These can be seen under a microscope, allowing the scientists to study different stages of brain development.

Check out the study in the journal Science.

Is the universe a graveyard? This theory suggests humanity may be alone.

Ever since we've had the technology, we've looked to the stars in search of alien life. It's assumed that we're looking because we want to find other life in the universe, but what if we're looking to make sure there isn't any?

According to the Great Filter theory, Earth might be one of the only planets with intelligent life. And that's a good thing (NASA, ESA, and the Hubble Heritage Team [STScI/AURA]).
Surprising Science

Here's an equation, and a rather distressing one at that: N = R* × fP × ne × f1 × fi × fc × L. It's the Drake equation, and it describes the number of alien civilizations in our galaxy with whom we might be able to communicate. Its terms correspond to values such as the fraction of stars with planets, the fraction of planets on which life could emerge, the fraction of planets that can support intelligent life, and so on. Using conservative estimates, the minimum result of this equation is 20. There ought to be 20 intelligent alien civilizations in the Milky Way that we can contact and who can contact us. But there aren't any.

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The key to better quality education? Make students feel valued.

Building a personal connection with students can counteract some negative side effects of remote learning.

Future of Learning
  • Not being able to engage with students in-person due to the pandemic has presented several new challenges for educators, both technical and social. Digital tools have changed the way we all think about learning, but George Couros argues that more needs to be done to make up for what has been lost during "emergency remote teaching."
  • One interesting way he has seen to bridge that gap and strengthen teacher-student and student-student relationships is through an event called Identity Day. Giving students the opportunity to share something they are passionate about makes them feel more connected and gets them involved in their education.
  • "My hope is that we take these skills and these abilities we're developing through this process and we actually become so much better for our kids when we get back to our face-to-face setting," Couros says. He adds that while no one can predict the future, we can all do our part to adapt to it.
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Study details the negative environmental impact of online shopping

Frequent shopping for single items adds to our carbon footprint.

A truck pulls out of a large Walmart regional distribution center on June 6, 2019 in Washington, Utah.

Photo by George Frey/Getty Images
Politics & Current Affairs
  • A new study shows e-commerce sites like Amazon leave larger greenhouse gas footprints than retail stores.
  • Ordering online from retail stores has an even smaller footprint than going to the store yourself.
  • Greening efforts by major e-commerce sites won't curb wasteful consumer habits. Consolidating online orders can make a difference.
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Personal Growth

Childhood sleeping problems may signal mental disorders later in life

Chronic irregular sleep in children was associated with psychotic experiences in adolescence, according to a recent study out of the University of Birmingham's School of Psychology.

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