Articles with the keyword: 
Economics school study finds no link between adult testosterone regimens and financial risk-taking
Darkfrog submitted, created time 11 months 2 weeks (www.nature.com)
For a while now, researchers have noticed that men and women behave differently in financial situations. In particular, men appear to be much more aggressive in things like day trading, while women tend to take a more sedate tack. To see if the quintessential male hormone, testosterone, was responsible, researchers measured the levels of testosterone in the saliva of male securities traders and found a positive correlation between higher testosterone levels and more risk-taking 
Forget it! A biochemical pathway for blocking your worst fears?
piggy submitted, created time 11 months 3 weeks (www.eurekalert.org)
A receptor for glutamate, the most prominent neurotransmitter in the brain, plays a key role in the process of "unlearning," report researchers at the Salk Institute for Biological Studies. Their findings, published in the current issue of the Journal of Neuroscience, could eventually help scientists develop new drug therapies to treat a variety of disorders, including phobias and anxiety disorders, particularly post-traumatic stress disorder.
"Most studies focus on 'learning,' but the 'unlearning' process is probably just as important and much less understood," says Stephen F
Cognitive enhancement dug might be addictive, researchers say. "Duh," says everyone else.
Darkfrog submitted, created time 1 year 3 days (www.nature.com)
Officially, the drug modafinil, marketed as Provigil, is used to treat narcolepsy. However, like Ritalin, it's often used and abused off-label to increase focus and alertness in otherwise healthy people.
According to some new brain imaging studies being published in the Journal of the American Medical Association, modafinil just might be addictive.
No. Really?
It's not as much of a given as it seems. The sorts of drugs that people abuse, including tobacco, all affect the levels of dopamine and other chemicals associated with the brain's reward system
Anger and Hostility Harmful to the Heart, Especially Among Men
piggy submitted, created time 1 year 6 days (www.sciencedaily.com)
Anger and hostility are significantly associated with both a higher risk for coronary heart disease (CHD) in healthy individuals and poorer outcomes in patients with existing heart disease, according to the first quantitative review and meta-analysis of related studies, which appears in the March 17, 2009, issue of the Journal of the American College of Cardiology.
Management of anger and hostility may be an important adjuvant strategy in preventing CHD in the general public and treating CHD patients, according to authors.
Men control appetite better than women
sea-maid submitted, created time 1 year 6 days (www.cbsnews.com)
Men have a better ability to suppress their hunger than women when presented with food.
Male and female study participants fasted for eighteen hours, and then got to see and smell their favorite foods. For the following thirty minutes, participants filled out surveys about their feelings of hunger and, while linked up to brain imaging equipment, attempted to stop thinking about food.
Men showed less hunger-related brain activity than women did. Researchers suspect that the female sex hormones, already linked to weight gain, may have something to do with this.
The Genetics of Fear: Study Suggests Specific Genetic Variations Contribute to Anxiety Disorders
piggy submitted, created time 1 year 1 week (www.psychologicalscience.org)
Polymorphisms are variations in genes which can result in changes in the way a particular gene functions and thus may be associated with susceptibility to common diseases. In a new study in Psychological Science, a journal of the Association for Psychological Science, psychologist Tina B. Lonsdorf and her colleagues from the Karolinska Institutet in Sweden and the University of Greifswald in Germany examined the effect of specific polymorphisms on how fear is learned and how that fear is subsequently overcome
How Inflammatory Disease Causes Fatigue
sea-maid submitted, created time 1 year 3 weeks (www.sciencedaily.com)
New animal research in the February 18 issue of The Journal of Neuroscience may indicate how certain diseases make people feel so tired and listless. Although the brain is usually isolated from the immune system, the study suggests that certain behavioral changes suffered by those with chronic inflammatory diseases are caused by the infiltration of immune cells into the brain. The findings suggest possible new treatment avenues to improve patients' quality of life.
Addiction: Insights from Parkinson's disease
piggy submitted, created time 1 year 3 weeks (www.eurekalert.org)
A new comprehensive review by researchers at the Montreal Neurological Institute (MNI), McGill University and the University of Cambridge, England provides vital insights into the neurological basis of addiction by investigating Parkinson's disease patients, who in some instances develop various addictions when undergoing medical treatment. The review, published in this week's (February 25) issue of the scientific journal Neuron, illustrates that persistently elevated levels of dopamine in the brain promote the development and maintenance of addictive behaviors
Abuse Leaves Its Mark on the Brain
piggy submitted, created time 1 year 3 weeks (sciencenow.sciencemag.org)
Child abuse doesn't just cause emotional problems; it also causes long-lasting changes the brain. A new study shows that in men who were abused as children, a gene involved in stress control is affected even decades later, following a pattern also seen in stressed baby rats.
Rat studies have revealed that maternal neglect alters the workings of the hypothalamic-pituitary-adrenal (HPA) axis, a system that secretes particular hormones in response to stress
Cupid's Arrow May Cause More Than Just Sparks to Fly This Valentine's Day
sea-maid submitted, created time 1 year 1 month (www.sciencedaily.com)
Getting struck by Cupid's arrow may very well take your breath away and make your heart go pitter patter this Valentine's Day, reports Loyola University Health System love guru Domeena Renshaw, MD.
Want to save the world? Try peer pressure.
Darkfrog submitted, created time 1 year 1 month (www.nytimes.com)
Everyone from municipalities to environmental groups has tried to get residents to use less energy. Messages urging environmental and social responsibility. Messages stressing financial savings... Nothing has made much difference.
So utility companies began issuing statements saying how much energy each household was using relative to its neighbors ...accompanied by either smiley or frowning faces. Guess how much impact this is having. No, guess.
This is so brilliant that I'm wondering why no one has thought of it before
High Hormone Levels in Women May Lead to Infidelity
sea-maid submitted, created time 1 year 1 month (www.sciencedaily.com)
Women with high levels of the sex hormone estradiol may engage in opportunistic mating, according to a new study by psychology researchers at the University of Texas at Austin.
High hormone levels in women linked to unfaithfulness
sea-maid submitted, created time 1 year 2 months (www.newscientist.com)
Women with high levels of estrogen may adopt a simple relationship strategy more often associated with men: love 'em and leave 'em.
New research suggests that young women who produce naturally high levels of an estrogen compound linked to fertility are more prone to hop from man to man, as well as cheat on their current partner. They also see themselves as more attractive than other women
Facial expressions of emotion are innate, not learned, says new study
piggy submitted, created time 1 year 2 months (www.eurekalert.org)
Facial expressions of emotion are hardwired into our genes, according to a study published today in the Journal of Personality and Social Psychology. The research suggests that facial expressions of emotion are innate rather than a product of cultural learning. The study is the first of its kind to demonstrate that sighted and blind individuals use the same facial expressions, producing the same facial muscle movements in response to specific emotional stimuli
Pain Hurts More If Person Hurting You Means It
piggy submitted, created time 1 year 3 months (www.sciencedaily.com)
Researchers at Harvard University have discovered that our experience of pain depends on whether we think someone caused the pain intentionally. In their study, participants who believed they were getting an electrical shock from another person on purpose, rather than accidentally, rated the very same shock as more painful. Participants seemed to get used to shocks that were delivered unintentionally, but those given on purpose had a fresh sting every time
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