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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.

Neom, Saudi Arabia's $500 billion megacity, reaches its next phase

Construction of the $500 billion dollar tech city-state of the future is moving ahead.

Credit: Neom
Technology & Innovation
  • The futuristic megacity Neom is being built in Saudi Arabia.
  • The city will be fully automated, leading in health, education and quality of life.
  • It will feature an artificial moon, cloud seeding, robotic gladiators and flying taxis.
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Why do people believe in conspiracy theories?

Are we genetically inclined for superstition or just fearful of the truth?

Videos
  • From secret societies to faked moon landings, one thing that humanity seems to have an endless supply of is conspiracy theories. In this compilation, physicist Michio Kaku, science communicator Bill Nye, psychologist Sarah Rose Cavanagh, skeptic Michael Shermer, and actor and playwright John Cameron Mitchell consider the nature of truth and why some groups believe the things they do.
  • "I think there's a gene for superstition, a gene for hearsay, a gene for magic, a gene for magical thinking," argues Kaku. The theoretical physicist says that science goes against "natural thinking," and that the superstition gene persists because, one out of ten times, it actually worked and saved us.
  • Other theories shared include the idea of cognitive dissonance, the dangerous power of fear to inhibit critical thinking, and Hollywood's romanticization of conspiracies. Because conspiracy theories are so diverse and multifaceted, combating them has not been an easy task for science.

COVID-19 brain study to explore long-term effects of the virus

A growing body of research suggests COVID-19 can cause serious neurological problems.

Brain images of a patient with acute demyelinating encephalomyelitis.

Coronavirus
  • The new study seeks to track the health of 50,000 people who have tested positive for COVID-19.
  • The study aims to explore whether the disease causes cognitive impairment and other conditions.
  • Recent research suggests that COVID-19 can, directly or indirectly, cause brain dysfunction, strokes, nerve damage and other neurological problems.
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Better reskilling can future-proof jobs in the age of automation. Enter SkillUp's new coalition.

Coronavirus layoffs are a glimpse into our automated future. We need to build better education opportunities now so Americans can find work in the economy of tomorrow.

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