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Latest Prefrontal cortex Stories

2011-12-07 10:39:23

How the human brain and human cognitive abilities evolved in less than six million years has long puzzled scientists. A new study conducted by scientists in China and Germany, and published December 6 in the online, open-access journal PLoS Biology, now provides a possible explanation by showing that activity levels of genes in the human brain during development changed substantially compared to chimpanzees and macaques. What's more, these changes might be caused by a handful of key...

2011-11-23 11:45:30

Images of prisoners' brains show important differences between those who are diagnosed as psychopaths and those who aren't, according to a new study led by University of Wisconsin-Madison researchers. The results could help explain the callous and impulsive anti-social behavior exhibited by some psychopaths. The study showed that psychopaths have reduced connections between the ventromedial prefrontal cortex (vmPFC), the part of the brain responsible for sentiments such as empathy and...

2011-11-14 23:49:34

Women who survive breast cancer show significant neurological impairment, and outcomes appear to be significantly poorer for those treated with chemotherapy, according to a report in the November issue of the Archives of Neurology, one of the JAMA/Archives journals. Breast cancer (BC) is one of the most common public health problems, with a worldwide estimated incidence of 39 per 100,000 individuals annually. Although primary BC has not been associated historically with neurological...

2011-11-04 20:52:12

Impulsive individuals tend to display aggressive behavior and have challenges ranging from drug and alcohol abuse, to problem gambling and difficult relationships. They are less able to adapt to different social situations. Impulsivity is also a common feature of psychiatric disorders. New research in Biological Psychiatry shows that people may react this way, in part, because they have lower levels of GABA (gamma-aminobutyric acid), the most important inhibitory neurotransmitter, in a...

2011-10-26 09:16:42

Cannabis use is associated with disturbances in concentration and memory. New research by neuroscientists at the University of Bristol, published in the Journal of Neuroscience [Oct. 25], has found that brain activity becomes uncoordinated and inaccurate during these altered states of mind, leading to neurophysiological and behavioral impairments reminiscent of those seen in schizophrenia. The collaborative study, led by Dr Matt Jones from the University's School of Physiology and...

2011-10-14 20:39:27

Computer programs used to reveal findings now available free Virtual brains modeling epilepsy and schizophrenia display less complexity among functional connections, and other differences compared to healthy brain models, researchers at Case Western Reserve University School of Medicine report. The researchers worked backward from brain rhythms — the oscillating patterns of electrical activity in the brain recorded on electroencephalograms - from both healthy and ill individuals....

2011-10-06 11:24:36

Civilized human cohabitation requires us to respect elementary social norms. We guarantee compliance with these norms with our willingness to punish norm violations — often even at our own expense. This behavior goes against our own economic self-interest and requires us to control our egoistic impulses. Innovative combination of methods In collaboration with Professor Ernst Fehr, Dr. Thomas Baumgartner and Professor Daria Knoch reveal the neuronal networks behind self-control in...

FIGURE 3_DBS EEG_v2
2011-09-25 15:19:20

Some people who receive deep brain stimulation for Parkinson´s disease behave impulsively, making quick, often bad, decisions. New research published in Nature Neuroscience explains why, and shows that under normal circumstances key parts of the brain collaborate to buy time for careful consideration of difficult decisions. Take your time. Hold your horses. Sleep on it. When people must decide between arguably equal choices, they need time to deliberate. In the case of people...

Key To Fighting Food Cravings All In Your Head
2011-09-21 10:46:53

   Researchers from Yale University and the University of Southern California, seeking new treatments to reverse the epidemic of obesity in the US, found that obese people had more difficulty resisting cravings for high-calorie foods, explaining why it might be difficult for overweight people to lose extra body mass, according to various media reports.   The study, published in the Journal of Clinical Investigation, found that thin people may be able to mentally resist...


Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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