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Our unconscious brain makes the best decisions possible
Researchers at the University of Rochester have shown that the human brain-once thought to be a seriously flawed decision maker-is actually hard-wired to allow us to make the best decisions possible with the information we are given. The findings are published in today's issue of the journal Neuron. view more (2008-12-29)
Turning down gene expression promotes nerve cell maintenance
Anyone with a sweet tooth knows that too much of a good thing can lead to negative consequences. The same can be said about the signals that help maintain nerve cells, as demonstrated in a new study of myelin, a protein key to efficient neuronal transmission. view more (2009-02-02)
Food cue-related brain activity linked to obesity?
A unique pattern of gene expression observed in rats may be linked to a conditioned desire for food and excessive food intake, an article published today in BMC Biology suggests. view more (2007-04-27)
New studies reveal differing perceptions of nature-altering science
Two new National Science Foundation (NSF)-sponsored research studies say public acceptance of the relatively new, nature-altering science of nanotechnology isn't a foregone conclusion. Instead, the studies indicate continued concern. view more (2008-12-12)
Claudin 11 stops the leaks in neuronal myelin sheaths
Devaux and Gow demonstrate how a tight junction protein called claudin 11 makes the neuronal myelin sheath a snug fit. view more (2008-12-01)
Seeing what we are thinking
At last we can see ourselves thinking, using the technique known as functional brain imaging (fMRI), and some of the exciting developments in this field were described in a series of papers presented today, Thursday 29 March, at The British Psychological Society's Centenary Annual Conference, held at the SECC, Glasgow. Dr Adrian Owen, of the... view more... (2001-03-26)
Larry Young on animals and autism clues, environmental impact on hormone brain function
As animal models go, the vole isn't near the top of the list. In fact, it wasn't even on the list until relatively recently. Not to be confused with the mole, a much smaller and scientifically less-interesting rodent, voles are about the size of hamsters, but more squat. view more (2005-07-20)
Who am I? Adolescents' replies depend on others
Ask 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. view more (2009-07-15)
Cognition already seriously impaired in first episode of schizophrenia
Significant and widespread cognitive problems appear to exist in schizophrenia in its earliest phase, making it very hard for people with the disorder to work, study or be social, according to a new study published by the American Psychological Association. view more (2009-05-14)
Low dose aspirin does not protect women against cognitive decline
Taking low dose aspirin does not protect older women against cognitive decline, finds a large study published on bmj.com today. view more (2007-04-27)
Trust-building hormone short-circuits fear in humans
A brain chemical recently found to boost trust appears to work by reducing activity and weakening connections in fear-processing circuitry, a brain imaging study at the National Institutes of Health's (NIH) National Institute of Mental Health (NIMH) has discovered. view more (2005-12-09)
Sea lions score top marks
CALIFORNIA sea lions may have the best memory of all non-human creatures. A female called Rio that learned a trick involving letters and numbers could still perform it 10 years later- even though she hadn`t performed the trick in the intervening period. Learning concepts such as "sameness"- when one letter or number matches another, for example-... view more... (2002-10-24)
Delirium could be prevented in a third of cases
At least one third of cases of delirium could be prevented if better systems of care were in place according to a doctor in today's BMJ. view more (2007-04-20)
Knitting by the guillotine
Madame Defarge and the other women who knitted while they watched people being guillotined during the French Revolution were probably not troubled by flashbacks of the event afterwards. Dr Emily Holmes, currently at the Medical Research Council's Cognition and Brain Sciences Unit, Cambridge, and the Traumatic Stress Clinic, London, will present... view more... (2004-04-15)
Brain changes significantly after age 18, says Dartmouth research
Two Dartmouth researchers are one step closer to defining exactly when human maturity sets in. In a study aimed at identifying how and when a person's brain reaches adulthood, the scientists have learned that, anatomically, significant changes in brain structure continue after age 18. view more (2006-02-07)
Greater deficits in emotional facial expression can indicate more severe alcoholism
Recognition of emotional facial expressions (EFEs) is a key form of non-verbal communication that has a huge influence on an individual's social-interaction skills. view more (2007-02-23)
Tiny ancient shells point to earliest fashion trend
Shell beads newly unearthed from four sites in Morocco confirm early humans were consistently wearing and potentially trading symbolic jewellery as early as 80,000 years ago. view more (2009-08-28)
Key neural system at risk from fetal alcohol exposure
In a study of adult monkeys who were exposed to moderate amounts of alcohol in utero, scientists have found that prenatal exposure to alcohol-even in small doses-has pronounced effects on the development and function later in life of the brain's dopamine system, a critical component of the central nervous system that regulates many regions of the... view more... (2005-09-15)
New 'everyday cognition' scale tracks how older adults function in daily life
As more adults age into the high-risk period for cognitive impairment, clinicians need simple and reliable methods to identify where they may have problems in everyday life that reveal underlying changes in the brain. view more (2008-07-01)
Smoking during pregnancy puts children at risk of psychotic symptoms
Mothers who smoke during pregnancy put their children at greater risk of developing psychotic symptoms in their teenage years. view more (2009-10-01)
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