Science of the SpiritS


Vinyl

Musicians' brains sync up during duet

Brain
© Activist Post
The brain waves of two musicians synchronize when they are performing duet, a new study found, suggesting that there's a neural blueprint for coordinating actions with others.

A team of scientists at the Max Planck Institute for Human Development in Berlin used electrodes to record the brain waves of 16 pairs of guitarists while they played a sequence from "Sonata in G Major" by Christian Gottlieb Scheidler. In each pair, the two musicians played different voices of the piece. One guitarist was responsible for beginning the song and setting the tempo while the other was instructed to follow.

In 60 trials each, the pairs of musicians showed coordinated brain oscillations - or matching rhythms of neural activity - in regions of the brain associated with social cognition and music production, the researchers said.

"When people coordinate their own actions, small networks between brain regions are formed," study researcher Johanna Sänger said in a statement. "But we also observed similar network properties between the brains of the individual players, especially when mutual coordination is very important; for example at the joint onset of a piece of music."

Yoda

John Trudell on the disease of Civilization

Excerpt from the excellent documentary about John Trudell, American philosopher, poet, musician, actor and activist.


Comment: See also: The Greatest Epidemic Sickness Known to Humanity


Blue Planet

Earth benefits from a periodic cleansing - John Trudell on responsibility, disease and cataclysm

Excerpt from the excellent documentary about John Trudell, American philosopher, poet, musician, actor and activist.


Info

Why people fall for bad boys and mean girls

Popular Girls
© Medical Daily
Recent research has found that people with so-called dark personality traits - narcissism, psychopathy, and Machiavellianism - are rated as more attractive than their more ethical, less selfish peers.

It seems that it's a cliché for a reason: "nice guys finish last". Recent research has found that people with so-called dark personality traits - narcissism, psychopathy, and Machiavellianism - are rated as more attractive than their more ethical, less selfish peers. That finding validates just about everyone's middle school experience. But why is that true?

A new study finds that those three traits, known as the "dark triad", are linked with an increased ability to successfully enhance a person's appearance. The study also suggests that people who possess the dark triad are more skilled at presenting and carrying themselves, which is why they are generally immediately liked.

Researchers Nicholas Holtzman and Michael Strube hailing from Washington University in St. Louis performed a study with 111 college students, 64 percent of whom were women. In order to test their level of attractiveness, each student was photographed shortly after their arrival at the research facility.

Afterwards, each person was asked to change into gray sweatpants. Women were asked to scrub make-up from their faces and anyone who had long hair was asked to tie it back in a ponytail. Researchers took a second picture of each participant in a natural state.

Arrow Up

Study shows, what you don't see could save your life

Fire Extinguisher
© ambrozinio / Shutterstock
Like millions of Americans, you may have taken a CPR course or learned techniques for dealing with other emergency situations at some time in your life. However, if a fire broke out or a medical emergency arose, would you remember the proper techniques? Would you know what to do in the event of a natural disaster like a hurricane or an earthquake? A new study from the University of California, Los Angeles (UCLS) has shown that people often do not recall things they have seen or passed by hundreds of times.

The research team asked 54 people who work in the same building if they knew the location of the fire extinguisher nearest their office. Many of these people had worked in the same office for years, passing by the bright red extinguishers several times a day. Yet only 13 people out of 54 - less than a quarter - knew the location of the nearest extinguisher.

The same people were asked to locate the nearest extinguisher and everyone was able to do so within a few seconds. Most of the participants were surprised they had never noticed the extinguishers before. Researchers noted that there seemed to be no significant difference between male and female participants, or between younger and older adults.

The results of this study were published in the journal Attention, Perception & Psychophysics.

Info

Practice makes the perfect liar

Liar
© andrea michele piacquadio | Shutterstock.comPeople normally take longer to come up with a lie, but after practicing, liars and truth-tellers become indistinguishable, according to a new study.
The more you practice a lie, the better you get at it, say the results of a new study.

Published Nov. 12 in the journal Frontiers in Cognitive Science, the study found that, after 20 minutes of practicing their cover story, liars could respond just as quickly and easily to lies as to the truth. Moreover, they were no more likely to slip-up on falsehoods than on the truth.

"After a short time of training, people can be very efficient at lying," said Xioaqing Hu, a study co-author and psychology doctoral candidate at Northwestern University. "The difference between lying and being honest has been eliminated after the training."

Though people lie for myriad reasons, it's no easy task. Lying takes a lot of brainpower because it requires holding contradictory information in mind (the truth and the lie), while inhibiting the urge to tell the truth. Children are terrible liars and only improve as they mature. And several studies have found that people take longer to tell a lie than to tell the truth.

"Lying is a difficult, because honesty is the default communication mode," Hu told LiveScience.

But past studies mostly tested people's ability to offer a deception with no practice. In real life, criminals usually practice and perfect their alibis before facing a police interrogation.

Info

What happens to the brain in a coma

Patient
© WavebreakmediaIn comatose patients, high-traffic brain regions go dark while less active regions spring to life, a new study suggests
What is going on inside the heads of individuals in a coma has been steeped in mystery. Now, a new study finds coma patients have dramatically reorganized brain networks, a finding that could shed light on the mystery of consciousness.

Compared with healthy patients in the study, high-traffic hubs of brain activity are dark in coma patients while more quiet regions spring to life.

"Consciousness may depend on the anatomical location of these hubs in the human brain network," said study co-author Sophie Achard, a statistician at the French National Center for Scientific research in Grenoble.

The findings have several important implications, said Indiana University neuroscientist Olaf Sporns, who was not involved in the study.

"It gives us a handle on what may be different between healthy conscious people and people who have loss of consciousness," Sporns told LiveScience. "The traffic patterns have totally reorganized. And maybe it's the rerouting of the traffic patterns that underlies the loss of consciousness," or the mysterious ability to be self-aware that seems to set humans apart from other animals.

In the future, the research could also help doctors determine which coma patients are likely to recover based on activity in high-traffic brain regions, he said. The research could potentially even suggest ways to stimulate the brains of patients in a coma to improve their outcome, he added.

The study was published today (Nov. 26) in the Proceedings of the National Academy of Sciences.

Magic Wand

Brainy babies - research explores infants' skills and abilities

Image
© Unknown
Infants seem to develop at an astoundingly rapid pace, learning new things and acquiring new skills every day. And research suggests that the abilities that infants demonstrate early on can shape the development of skills later in life, in childhood and beyond.

Read about the latest research on infant development published in the November 2012 issue of Psychological Science, a journal of the Association for Psychological Science.

How Do You Learn to Walk? Thousands of Steps and Dozens of Falls per Day

Karen E. Adolph, Whitney G. Cole, Meghana Komati, Jessie S. Garciaguirre, Daryaneh Badaly, Jesse M. Lingeman, Gladys L. Y. Chan, and Rachel B. Sotsky

How do babies learn to walk? In this study, Adolph and colleagues recorded 15- to 60-minute videos of spontaneous activity from infants. They then coded the videos for the time infants spent walking and crawling, the number of crawling and walking steps infants took, and the number of falls infants experienced whether walking or crawling. The researchers found that the infants moved a tremendous amount and that new walkers moved faster than crawlers but had a similar number of falls at first and fewer as they became more experienced. This suggests that infants are motivated to begin walking because they move faster without falling more and that they dramatically improve their walking skills through immense amounts of practice.

Bulb

Reading, writing and playing games may help aging brains stay healthy

Image
© Unknown
Mental activities like reading and writing can preserve structural integrity in the brains of older people, according to a new study presented today at the annual meeting of the Radiological Society of North America (RSNA).

While previous research has shown an association between late-life cognitive activity and better mental acuity, the new study from Konstantinos Arfanakis, Ph.D., and colleagues from Rush University Medical Center and Illinois Institute of Technology in Chicago studied what effect late-life cognitive activity might have on the brain's white matter, which is composed of nerve fibers, or axons, that transmit information throughout the brain.

"Reading the newspaper, writing letters, visiting a library, attending a play or playing games, such as chess or checkers, are all simple activities that can contribute to a healthier brain," Dr. Arfanakis said.

The researchers used a magnetic resonance imaging (MRI) method known as diffusion tensor imaging (DTI) to generate data on diffusion anisotropy, a measure of how water molecules move through the brain. In white matter, diffusion anisotropy exploits the fact that water moves more easily in a direction parallel to the brain's axons, and less easily perpendicular to the axons, because it is impeded by structures such as axonal membranes and myelin. "This difference in the diffusion rates along different directions increases diffusion anisotropy values," Dr. Arfanakis said. "Diffusion anisotropy is higher when more diffusion is happening in one direction compared to others."

Info

Readers join Dr. Eben's journey to the afterworld's gates

Dr. Eben
© Jennifer Taylor/The New York TimesDr. Eben Alexander III
For years Dr. Eben Alexander III had dismissed near-death revelations of God and heaven as explainable by the hard wiring of the human brain. He was, after all, a neurosurgeon with sophisticated medical training.

But then in 2008 Dr. Alexander contracted bacterial meningitis. The deadly infection soaked his brain and sent him into a deep coma.

During that week, as life slipped away, he now says, he was living intensely in his mind. He was reborn into a primitive mucky Jell-o-like substance and then guided by "a beautiful girl with high cheekbones and deep blue eyes" on the wings of a butterfly to an "immense void" that is both "pitch black" and "brimming with light" coming from an "orb" that interprets for an all-loving God.

Dr. Alexander, 58, was so changed by the experience that he felt compelled to write a book, "Proof of Heaven," that recounts his experience. He knew full well that he was gambling his professional reputation by writing it, but his hope is that his expertise will be enough to persuade skeptics, particularly medical skeptics, as he used to be, to open their minds to an afterworld.

Dr. Alexander acknowledged that tales of near-death experiences that reveal a bright light leading to compassionate world beyond are as old as time and by now seem trite. He is aware that his version of heaven is even more psychedelic than most - the butterflies, he explained, were not his choice, and anyway that was his "gateway" and not heaven itself.

Still, he said, he has a trump card: Having trained at Duke University and taught and practiced as a surgeon at Harvard, he knows brain science as well as anyone. And science, he said, cannot explain his experience.

"During my coma my brain wasn't working improperly," he writes in his book. "It wasn't working at all."