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Latest Prefrontal cortex Stories

2009-07-29 14:25:00

 If you've ever felt doomed to repeat your mistakes, researchers at MIT's Picower Institute for Learning and Memory may have explained why: Brain cells may only learn from experience when we do something right and not when we fail.In the July 30 issue of the journal Neuron, Earl K. Miller, the Picower Professor of Neuroscience, and MIT colleagues Mark Histed and Anitha Pasupathy have created for the first time a unique snapshot of the learning process that shows how single cells change...

2009-07-28 01:00:00

PHILADELPHIA, July 28 /PRNewswire-FirstCall/ -- Shire plc (LSE: SHP, NASDAQ: SHPGY), the global specialty biopharmaceutical company, announces that it has received a Complete Response letter today for INTUNIV(TM) (guanfacine) Extended Release from the Food and Drug Administration (FDA). This decision comes following labeling discussions with the FDA that did not result in agreement in time to meet the PDUFA date. The FDA did not identify safety concerns regarding INTUNIV in the...

2009-07-23 10:43:09

 Experiencing chronic stress day after day can produce wear and tear on the body physically and mentally, and can have a detrimental effect on learning and emotion. However, acute stress -- a short stressful incident -- may enhance learning and memory.Researchers at the University at Buffalo have shown, in trials using rodents as an animal model, that acute stress can produce a beneficial effect on learning and memory, through the effect of the stress hormone corticosterone (cortisol in...

2009-07-16 13:15:45

Training increases brain processing speed and improves our ability to multitask, new research from Vanderbilt University published in the June 15 issue of Neuron indicates. "We found that a key limitation to efficient multitasking is the speed with which our prefrontal cortex processes information, and that this speed can be drastically increased through training and practice," Paul E. Dux, a former research fellow at Vanderbilt, and now a faculty member at the University of Queensland in...

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2009-07-15 08:35:00

Functional magnetic resonance imaging confirms the influences of peer, parents on self identityAsk middle-school students if they are popular or make friends easily, they likely will depend on social comparisons with their peers for an answer. Such reliance on the perceived opinions of others, or reflected self-appraisals, has long been assumed, but new evidence supporting this claim has now been found in the teen brain.Using functional magnetic resonance imaging (fMRI), researchers looked at...

2009-07-13 16:59:28

A new study of the cognitive processes involved with honesty suggests that truthfulness depends more on absence of temptation than active resistance to temptation.Using neuroimaging, psychologists looked at the brain activity of people given the chance to gain money dishonestly by lying and found that honest people showed no additional neural activity when telling the truth, implying that extra cognitive processes were not necessary to choose honesty. However, those individuals who behaved...

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2009-05-29 08:53:01

Just as our world buzzes with distractions "” from phone calls to e-mails to tweets "” the neurons in our brain are bombarded with messages. Research has shown that when we pay attention, some of these neurons begin firing in unison, like a chorus rising above the noise. Now, a study in the May 29 issue of Science reveals the likely brain center that serves as the conductor of this neural chorus. MIT neuroscientists found that neurons in the prefrontal cortex "” the brain's...

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...

2009-05-28 07:37:28

Your brain activity can reveal how you make big decisions, according to a new study. Researchers at Duke University Medical Center studied the brain as people handled a set of decision making problems and found brain regions associated with rational processing, such as the lateral prefrontal cortex, were most active when participants used a strategy not consistent with traditional rational choices. The findings also strongly argue against the commonly held the notion that there are rational...

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2009-05-12 08:07:31

A new University of British Columbia study finds that our brains are much more active when we daydream than previously thought. The study, published in the Proceedings of the National Academy of Sciences, finds that activity in numerous brain regions increases when our minds wander. It also finds that brain areas associated with complex problem-solving "“ previously thought to go dormant when we daydream "“ are in fact highly active during these episodes. "Mind wandering is...


Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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