Reading the Face: The Importance of Social Intelligence

There are certain traits that we don’t pay much attention to, but which actually do explain success.  So, for example, one of them you would call mind sight, which is the ability to look into other people’s eyes and sort of download the information they have there.  Babies come with this skill, so a scientist named Allen Meltshoff leaned over a 43-minute old baby and wagged his tongue at the baby and the baby, she wagged her tongue back.  And she didn’t know what a face was or what a tongue was, but we’re all wired to know at birth that we should mimic what we see.  And that’s how we download models.  

Some people retain this ability, others don’t.  Babies are phenomenally good at reading faces. So if you take a bunch of monkey faces and put them in from of six-month old babies, six months olds can tell one monkey face from another because they’re really good at detecting little facial features.  Adults can’t do this.  We lose that skill.  And so some people have that ability to really intuit what other people are saying and sort of feel that themselves.

Another skill is what you might call metis, which is a Greek word (Μῆτις), which we would call street smarts.  It’s the ability to look over a physical landscape and detect what’s important, what’s not, what’s a pattern, what’s not.  And so for example, in chicken farms they have these things called chicken sexers who pick up a little chick and they try to tell is it a male or female.  And they can do it with 99 percent accuracy, but they have no clue how they do it.  If you ask them "What are you looking for?" they really don’t know.  But over long experience, they’ve learned to detect patterns and to see things in clear ways.  

So these are the sorts of skills that some people have and some people don’t.  Another is the ability to be sensitive to social environments.  Some people have the ability to detect the emotions in others.  And so, for example, most of us work in groups and that’s because groups are just much smarter than individuals.  And the groups that meet face-to-face are much smarter than groups that meet electronically.  

At the University of Michigan, they did a study where they gave math tests to groups. Some of them had to meet face-to-face and they gave them 10 minutes to solve the math problem. Other groups communicated by email and they had 30 minutes to solve the math problem. The face-to-face groups could solve the problem easily; the electronic groups couldn’t solve the problems.  And that’s because most of our communication is face-to-face, it’s by intonation of voice, it’s by gesture.  And some people are really good at picking up those gestures.  Some people are not so good.  And in the groups that succeeded, it was not the high IQ of the members of the group, it was how sensitive they were to each other, how much they took turns while talking.  

So these are the sorts of traits that really explain fulfillment and achievement.  

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Why are so many objects in space shaped like discs?

It's one of the most consistent patterns in the unviverse. What causes it?

  • Spinning discs are everywhere – just look at our solar system, the rings of Saturn, and all the spiral galaxies in the universe.
  • Spinning discs are the result of two things: The force of gravity and a phenomenon in physics called the conservation of angular momentum.
  • Gravity brings matter together; the closer the matter gets, the more it accelerates – much like an ice skater who spins faster and faster the closer their arms get to their body. Then, this spinning cloud collapses due to up and down and diagonal collisions that cancel each other out until the only motion they have in common is the spin – and voila: A flat disc.

Scientists study tattooed corpses, find pigment in lymph nodes

It turns out, that tattoo ink can travel throughout your body and settle in lymph nodes.

17th August 1973: An American tattoo artist working on a client's shoulder. (Photo by F. Roy Kemp/BIPs/Getty Images)

In the slightly macabre experiment to find out where tattoo ink travels to in the body, French and German researchers recently used synchrotron X-ray fluorescence in four "inked" human cadavers — as well as one without. The results of their 2017 study? Some of the tattoo ink apparently settled in lymph nodes.

Image from the study.

As the authors explain in the study — they hail from Ludwig Maximilian University of Munich, the European Synchrotron Radiation Facility, and the German Federal Institute for Risk Assessment — it would have been unethical to test this on live animals since those creatures would not be able to give permission to be tattooed.

Because of the prevalence of tattoos these days, the researchers wanted to find out if the ink could be harmful in some way.

"The increasing prevalence of tattoos provoked safety concerns with respect to particle distribution and effects inside the human body," they write.

It works like this: Since lymph nodes filter lymph, which is the fluid that carries white blood cells throughout the body in an effort to fight infections that are encountered, that is where some of the ink particles collect.

Image by authors of the study.

Titanium dioxide appears to be the thing that travels. It's a white tattoo ink pigment that's mixed with other colors all the time to control shades.

The study's authors will keep working on this in the meantime.

“In future experiments we will also look into the pigment and heavy metal burden of other, more distant internal organs and tissues in order to track any possible bio-distribution of tattoo ink ingredients throughout the body. The outcome of these investigations not only will be helpful in the assessment of the health risks associated with tattooing but also in the judgment of other exposures such as, e.g., the entrance of TiO2 nanoparticles present in cosmetics at the site of damaged skin."

Photo by Alina Grubnyak on Unsplash
Mind & Brain

Do human beings have a magnetic sense? Biologists know other animals do. They think it helps creatures including bees, turtles and birds navigate through the world.

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