Science of the SpiritS


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The brain retroactively edits conscious experience

Woamn in Mirror
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The brain apparently edits a person's conscious experience retroactively.

Up to a half-second after an object disappears from view, the brain can "edit" the experience to retain that object, a new study from France shows. The finding may partly explain the weird feeling of being able to recall something you heard even when you don't consciously remember hearing it.

The finding also contradicts the notion that the brain sequentially takes in sensory information, processes it and then consciously experiences it, said Tufts University cognitive scientist Daniel Dennett, whose books include Consciousness Explained.

"You have to get away from the idea that consciousness is like a movie that's playing in your head and that once the processing is done happening then you've got this finished movie that you see." Dennett told LiveScience. "The editing can go on and on."

The results were published online Dec. 13 in the journal Current Biology.

Magnify

Scientists zoom in on the exact spots in brain that drive addiction

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A smoker's craving to light up can be tamed by carefully targeted magnetic fields applied to the brain, a senior researcher from a Japanese-Canadian team said Wednesday.

Scientists managed to zoom in on the exact spots that drive the need for nicotine, noting that a mental connection made when a smoker is able to have a cigarette markedly increases the desire to spark up.

They found that by interrupting this connection, the addict was better able to control his or her cravings.

"Cabin attendants who smoke say they feel stronger cravings for cigarettes as they approach landing times, no matter whether their flights are long-distance or not," Takuya Hayashi told AFP from Kobe in western Japan.

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Babies start 'mind reading' earlier than thought

Mind Reading
© H. Clark BarrettIn a modified version of the false-beliefs test, even toddlers seem to understand what other people know.
Even babies as young as a year-and-a-half can guess what other people are thinking, new research suggests.

The results, published today (Jan. 29) in the journal Proceedings of the Royal Society: B, come from a study of children spanning the globe, from rural China to the more remote islands of Fiji. Previously, scientists thought this ability to understand other people's perspectives emerged much later in children.

The findings may shed light on the social abilities that differentiate us from our closest living relatives, chimpanzees, said study author H. Clark Barrett, an anthropologist at the University of California, Los Angeles. The study used a form of the false-belief test, one of the few cognitive tasks that young children, but not primates, can do.

Humans are "very good at inferring other people's mental states: their emotions, their desires and, in this case, their knowledge," Barrett said. "So it could play an important role in cultural transmission and social learning."

Bomb

Scots doctors to help stroke patients 'rewire' their brains by stimulating the vagus nerve

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Scots doctors are to embark on a pioneering trial of technology similar to that used to manage depression and epilepsy in an attempt to 'rewire' the brains of stroke victims.

Clinical researchers at Glasgow University are aiming to help patients overcome some of the physical disabilities caused by a stroke.

The team from the university's Institute of Cardiovascular and Medical Sciences will undertake the world's first in-human trial of vagus nerve stimulation in stroke patients.

Strokes, which affect 280 per 100,000 people in Scotland annually, can result in the loss of brain tissue and negatively affect various bodily functions from speech to movement, depending on the location of the stroke.

The study, which will be carried out at the Western Infirmary in Glasgow, will recruit 20 patients who suffered a stroke around six months ago and who have been left with poor arm function despite receiving the best available treatment.

Each participant will receive three one-hour sessions of intensive physiotherapy each week for six weeks to help improve their arm function.

Half of the group will also receive an implanted Vivistim device, a vagus nerve stimulator, which connects to the vagus nerve in the neck. When they are receiving physiotherapy to help improve their arm, the device will stimulate the nerve.

Comment: Practitioners of the Éiriú Eolas program have been stimulating the vagus nerve in a natural way and reporting its benefits for years. You can also benefit from it at eebreathe.com


Eye 2

Why your boss could easily be a psychopath

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© Photo: Warner BrosAmong the examples of these 'triadics' he gives is the fictional Mafia boss Tony Soprano
Troublesome colleagues are likely to harbour a "dark triad" of psychopathic tendencies, Machiavellian cunning and narcissistic selfishness, according to a new study.

If you feel your colleagues are out to get you, it turns out you could be right.

A study of office politics suggests that workplaces are a jungle of awkward personalities vying for domination.

Oliver James, the psychologist and broadcaster, identified three types of dysfunctional personalities among white collar workers: psychopath, Machiavellian, and narcissist.

These are the colleagues who have no compunction about trampling over others, or like nothing more than to plot and scheme, or who drone on endlessly about themselves.

Most terrifyingly, the author concluded that there was fourth dysfunctional type: a "triadic person" who is a combination of all three. Such staff, James warns, have a dangerous, yet effective mix of a lack of empathy, self-centredness, deviousness and self-regard which can propel them to the top of the organisations.

Gift

Retail therapy doesn't work: People overestimate the happiness new purchases will bring

Retail Therapy
People overestimate the happiness new purchases will bring 'Retail therapy' doesn't work for long, even among the most materialistic, study suggests.
They say money can't buy happiness, and a new study suggests that's true for even the most materialistic.

Instead, the study found, these folks seem to be happiest right before they buy a coveted item. Once they have the purchase in hand, their joy fades quickly.

The findings may not be all that surprising, experts say. But the notion that you're a lot happier before a big buy than after - particularly if you're on the more materialistic side - had not been "empirically tested" before, said Brent McFerran, an assistant professor of marketing at the University of Michigan in Ann Arbor, who was not involved in the new research.

In real life, you might be able to think of times when you've anticipated an important purchase, then felt let down after buying it. But whether you learn from that, and stop putting so much stock in "stuff" is another matter, McFerran said.

Family

No more "empty nest": Middle-aged adults face pressure on both sides

The "empty nest" of past generations, in which the kids are grown up and middle-aged adults have more time to themselves, has been replaced in the United States by a nest that's full - kids who can't leave, can't find a job and aging parents who need more help than ever before.

According to a new study by researchers at Oregon State University, what was once a life stage of new freedoms, options and opportunities has largely disappeared.

An economic recession and tough job market has made it hard on young adults to start their careers and families. At the same time, many older people are living longer, which adds new and unanticipated needs that their children often must step up to assist with.

The end result, researchers suggest, are "empty nest" plans that often have to be put on hold, and a mixed bag of emotions, ranging from joy and "happy-to-help" to uncertainty, frustration and exhaustion.

"We mostly found very positive feelings about adults helping their children in the emerging adulthood stage of life, from around ages 18 to 30," said Karen Hooker, director of the OSU Center for Healthy Aging Research.

"Feelings about helping parents weren't so much negative as just filled with more angst and uncertainty," Hooker said. "As a society we still don't socialize people to expect to be taking on a parent-caring role, even though most of us will at some point in our lives. The average middle-aged couple has more parents than children."

Life Preserver

Meditation for chronic pain relief

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People suffering from chronic inflammatory conditions, such as rheumatoid arthritis, inflammatory bowel disease and asthma - in which psychological stress plays a major role - may benefit from mindfulness meditation techniques, according to a study by University of Wisconsin-Madison neuroscientists.

Mindfulness-based stress reduction, originally designed for patients with chronic pain, consists of continuously focusing attention on the breath, bodily sensations and mental content while seated, walking or practicing yoga.

A class in stress reduction can be beneficial in many ways, some of which have little to do with mindfulness, according to Melissa Rosenkranz, assistant scientist at the center and lead author on the paper, which was published recently in the journal Brain, Behavior and Immunity. For example, learning to manage stress by engaging in regular physical activity may be therapeutic.

"We wanted to develop an intervention that was meant to produce positive change and compare the mindfulness approach to an intervention that was structurally equivalent," Rosenkranz says.

The study compared two methods of reducing stress: a mindfulness meditation-based approach, and a program designed to enhance health in ways unrelated to mindfulness.

Comment: Benefit right away from conscious breathing and meditation at eebreathe.com.


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The "coolest" kids are also the biggest bullies says new study

Bullying
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A new study from the University of California, Los Angeles (UCLA) revealed that "cool" kids in middle school had a tendency to participate in bullying more than others.

Bullying was defined as either "starting fights or pushing other kids around" or "spreading nasty rumors about other kids." The UCLA psychology study found that bullying could help improve an individual's social status and popularity among middle school students. In addition, students who were already considered popular utilized these forms of bullying.

The researchers believe that the findings of the study, which were recently published in the online edition of the Journal of Youth and Adolescence, could help school administrators and anti-bullying programs improve their tactics for eliminating school bullying.

"The ones who are cool bully more, and the ones who bully more are seen as cool," explained the study's lead author Jaana Juvonen, a professor of psychology at UCLA. "What was particularly interesting was that the form of aggression, whether highly visible and clearly confrontational or not, did not matter. Pushing or shoving and gossiping worked the same for boys and girls."

In the project, the researchers observed 1,895 ethnically diverse students from 11 Los Angeles middle schools. The students were dispersed across 99 different classes, with investigators conducting surveys at the start of the seventh grade, the fall of eight grade, and the spring of eight grade. During each of the three surveys, the students filled out questionnaires asking them to name the students who were thought to be the "coolest," the students who usually started fights or pushed other students around, and those who spread mean rumors about other students.

People

School system favors pupils driven by worry and conscientiousness

In one of three studies, Pia Rosander carried out personality tests on 200 pupils in southern Sweden when they entered upper secondary school at 16. Three years later, when they received their final grades, she was able to observe a strong link between personality and grades.

In personality psychology one talks of "the big five" - the five most common personality traits: openness, conscientiousness, extraversion, agreeableness and neuroticism. These qualities influence how a person behaves and are relatively stable qualities, which means that they do not change greatly over time or in different situations.

One of the traits is clearly associated with high grades: Neuroticism, where pupils are driven by fear and worry, also led to high grades. Contrary to Pia Rosander's hypothesis, openness, or intellectual curiosity, did not lead to high grades.

"We have a school system in Sweden that favours conscientious and fear-driven pupils", says Pia Rosander. "It is not good for psychological well-being in the long term if fear is a driving force. It also prevents in-depth learning, which happens best among the open personality types who are driven by curiosity."