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Latest Ventromedial prefrontal cortex Stories

2009-05-28 10:51:44

A new study demonstrates that when faced with a difficult decision, the human brain calls upon multiple neural systems that code for different sorts of behaviors and strategies. The research, published by Cell Press in the May 28th issue of the journal Neuron, provides intriguing insight into the mechanisms that help the human brain rise to the formidable challenge of adaptive decision making in the real world."When faced with a complex decision, many individuals engage in simplifying...

2008-12-05 08:57:20

Scientists have revealed an abnormality in the brain that may be at fault for stress-related psychiatric disorders. It lies in the part of the brain responsible for blocking out memories.Using functional MRI (fMRI), scientists examined connections between the prefrontal cortex and hippocampus of participants who had suffered stressful traumatic events. The prefrontal cortex is the part of the brain that suppresses and retrieves memories processed by the hippocampus, another part of the brain....

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2008-04-22 07:20:00

The human brain responds to being treated fairly the same way it responds to winning money and eating chocolate, UCLA scientists report. Being treated fairly turns on the brain's reward circuitry."We may be hard-wired to treat fairness as a reward," said study co-author Matthew D. Lieberman, UCLA associate professor of psychology and a founder of social cognitive neuroscience."Receiving a fair offer activates the same brain circuitry as when we eat craved food, win money or see a beautiful...

2008-03-18 11:05:00

Individuals who experience military combat obviously endure extreme stress, and this exposure leaves many diagnosed with the psychiatric condition of post-traumatic stress disorder, or PTSD. PTSD is associated with several abnormalities in brain structure and function. However, as researcher Roger Pitman explains, "Although it is tempting to conclude that these abnormalities were caused by the traumatic event, it is also possible that they were pre-existing risk factors that increased the...

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2008-01-14 10:35:00

We often read or hear stories about older adults being conned out of their life savings, but are older individuals really more susceptible to fraud than younger adults? And, if so, how exactly does aging affect judgment and decision-making abilities?Recent work led by University of Iowa neuroscientist Natalie Denburg, Ph.D., suggests that for a significant number of older adults, measurable neuropsychological deficits do seem to lead to poor decision-making and an increased vulnerability to...

2005-11-28 17:04:26

The relationship between the size of a brain structure and the ability to recover from traumatic experiences also may influence overall personality type, according to a study from Massachusetts General Hospital (MGH) researchers. In a followup to earlier findings that an area of the brain called the medial orbitofrontal cortex (mOFC) appears thicker in those who can better control their emotional response to unpleasant memories, the investigators found that study participants who exhibited...

2005-07-11 19:35:00

The size of a particular structure in the brain may be associated with the ability to recover emotionally from traumatic events. A new study by researchers from Massachusetts General Hospital (MGH) finds that an area called the ventromedial prefrontal cortex is thicker in volunteers who appear better able to modify their anxious response to memories of discomfort. The report will appear in the Proceedings of the National Academy of Science and has received early online release on the PNAS...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'