Your Brain on Happiness
Posted by John Malloy on 02/01/2010
Circuits in your brain light up when you’re happy. One groundbreaking researcher has discovered how to keep them lit.
There are no dark corners in Madison, Wisconsin, a university town that sparkles with endowment and research dollars—more than $900 million last year—as well as just plain Midwestern niceness. The grants are well earned: It was at the University of Wisconsin–Madison that the first bone marrow transplant was performed and the first synthetic gene was created. It was here that human stem cells were isolated and cultured in a lab for the first time. And for more than a decade, one of the campus’s most productive hit makers has been the Laboratory for Affective Neuroscience, run by a 56-year-old neuroscientist and professor of psychology and psychiatry named Richard J. Davidson, PhD, who has been systematically uncovering the architecture of emotion.
Davidson, whose youthful appearance and wide-open smile give him more than a passing resemblance to Jerry Seinfeld, has been studying the brain structures behind not just anxiety, depression, and addiction but also happiness, resilience, and, most recently, compassion. Using brain imaging technologies, in particular a device called a functional magnetic resonance imaging (fMRI) machine, a sort of Hubble telescope for the brain, Davidson and his researchers have observed the areas associated with various emotions and how their function changes as an individual moves through them. His “brain maps” have revealed the neural terrain of so-called normal adults and children, as well as those suffering from mood disorders and autism. Davidson has also studied a now rather famous group of subjects: Tibetan monks with years of Buddhist meditation under their gleaming pates.
Probably his most well-known study mapped the brains of employees at a biotech company, more than half of whom completed about three hours of meditation once a week led by Jon Kabat-Zinn, PhD, founding director of the Stress Reduction Clinic at the University of Massachusetts Medical School. After four months, the meditating subjects noticed a boost in mood and decrease in anxiety, while their immune systems became measurably stronger. What made headlines, though (“The Science of Happiness” sang a January 2005 Timemagazine cover), was that Davidson vividly showed that meditation produced a significant increase in activity in the part of the brain responsible for positive emotions and traits like optimism and resilience—the left prefrontal cortex. In meditating monks, he’d separately found, this area lit up like the lights in Times Square, showing activity beyond anything he and his team had ever seen—a neurological circuit board explaining their sunny serenity…
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Posted by
John Malloy
on 02/01/2010. Filed under
International.
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