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Latest Prefrontal cortex Stories

2010-09-23 12:34:35

University of Colorado scientists study seriously troubled teens Antisocial boys who abuse drugs, break laws, and act recklessly are not just "bad" kids. Many of these boys may have malfunctioning brains, according to a new study by researchers at the University of Colorado School of Medicine. "Brain responses to everyday rewards and punishments gradually guide most youngsters' decisions to conform with society's rules. However, when these seriously troubled kids experience rewards and...

2010-09-20 16:31:00

Narcissists spend their resting time deep in thought, a new imaging study shows, though such reflection likely revolves entirely around the thinker. USC neuroscientists found a correlation between high scores on a measure of narcissism - the Machiavellian Egocentricity subscale - and activity during rest in the posteromedial cortex, a brain region that previous studies have associated with thoughts about the self. The finding, published online by PLoS ONE, does more than bolster a stereotype....

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2010-09-17 13:00:00

Structure of prefrontal cortex helps humans think about one's own thinking A specific region of the brain appears to be larger in individuals who are good at turning their thoughts inward and reflecting upon their decisions, according to new research published in the journal Science. This act of introspection"”or "thinking about your thinking""”is a key aspect of human consciousness, though scientists have noted plenty of variation in peoples' abilities to introspect. The new...

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2010-09-14 09:09:28

A new University of Colorado at Boulder study sheds light on the brain mechanisms that allow us to make choices and ultimately could be helpful in improving treatments for the millions of people who suffer from the effects of anxiety disorders. In the study, CU-Boulder psychology Professor Yuko Munakata and her research colleagues found that "neural inhibition," a process that occurs when one nerve cell suppresses activity in another, is a critical aspect in our ability to make choices. "The...

2010-08-25 14:56:10

Humans and other animals use this circuitry to make basic decisions about things like food, discounting the involvement of a specific 'moral sense' Scientists at Harvard University have found that humans can make difficult moral decisions using the same brain circuits as those used in more mundane choices related to money and food. These circuits, also found in other animals, put together two critical pieces of information: How good or bad are the things that might happen? What are the odds...

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2010-08-08 20:30:44

Kerry Ressler's research on the molecular biology of fear could lead to better methods for treating individuals suffering from anxiety disordersKerry Ressler wants to understand the molecular biology of fear."We're studying how the biology of the brain is changed by the environment, and how these changes underlie memories and experiences," said Ressler, an associate professor in the department of psychiatry and behavioral sciences at Emory University School of Medicine and Yerkes National...

2010-08-03 13:19:28

Standard therapeutic techniques decrease cravings of cigarette smokers by regulating activity in two separate but related areas of the brain, a new study led by a Yale University researcher shows. Smokers who are taught cognitive strategies, such as thinking about the long-term consequences of smoking, show increased activity in the prefrontal cortex, an area of the brain associated with cognitive control and rational thought. They also show decreased activity in areas of the striatum, an...

2010-07-16 13:40:14

Genetic mutation found to alter activity of neurons in brain's prefrontal cortex Imagine if your brain lost its working memory "” the ability to hold and manipulate information in your mind's eye. That's the plight faced by millions of people with neurofibromatosis type 1, or NF1. The genetic condition affects one in 3,500 people and is the most common cause of learning disabilities. Now a UCLA research team has uncovered new clues about how NF1 disrupts working memory. Published in the...

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2010-06-23 13:25:00

Researchers said on Tuesday that brain scans may be able to predict what you will do better than you can yourself, and be a powerful tool for health officials or advertisers seeking to motivate consumers. The researchers found a way to interpret "real time" brain images to show whether people who viewed messages about using sunscreen would actually use the product. Emily Falk and colleagues at the University of California Los Angeles said the scans were more accurate than the volunteers...

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2010-06-23 07:11:54

Personalities come in all kinds. Now psychological scientists have found that the size of different parts of people's brains correspond to their personalities; for example, conscientious people tend to have a bigger lateral prefrontal cortex, a region of the brain involved in planning and controlling behavior. Psychologists have worked out that all personality traits can be divided into five factors, commonly called the Big Five: conscientiousness, extraversion, neuroticism, agreeableness,...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.