When an object moves fast, we follow it with our eyes: our brain correspondingly calculates the speed of the object and adapts our eye movement to it. This in itself is an enormous achievement, yet our brain can do even more than that. In the real world, a car will typically accelerate or brake faster than, say, a pedestrian. But the control of eye movement in fact responds more sensitively to changes in the speed of fast moving objects than slow moving objects.
Brain
Many breast cancer cells facing potentially lethal antiestrogen therapy recycle to survive, researchers say.
About 70 percent of breast cancer cells have receptors for the hormone estrogen, which acts as a nutrient and stimulates their growth. Patients typically get an antiestrogen such as tamoxifen for five years to try to starve them to death, says Dr. Patricia V. Schoenlein, cancer researcher in the Medical College of Georgia Schools of Medicine and Graduate Studies.
U.S. presidential candidates have been stumping for nearly two years with their every move being analyzed and reported ad nauseum. Logically, voters should be able to tap into lots of information when they make their decisions come November. But it turns out there's a lot more going on when we step behind the curtain to cast our ballot.
Thyroid problems affect as many as 27 million Americans. Among the most common problems are hypothyroidism and hyperthyroidism. To help people learn more about thyroid disorders, the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), part of the National Institutes of Health (NIH), has produced four new fact sheets for consumers and health care providers.
We can learn from our mistakes, but how willing are we to talk about them? And what happens when those making mistakes are physicians, who are often expected to be infallible?
Berkeley -- Presidential candidates who play up the threat of terrorism tobolster votes may want to rethink their game plan. New research from the University of California, Berkeley, indicates the war on terror has lessimpact on presidential popularity than it did during President Bush's first term.
WASHINGTON, DC, 2 OCTOBER 2008 – Countries with strict social rules and behavioral etiquette such as the United Kingdom may foster drinking cultures characterized by unruly or bad behavior, according to a new report on alcohol and violence released today by International Center for Alcohol Policies (ICAP). The report lists 11 cultural features that may predict levels of violence such as homicide and spousal abuse.
Deployed peacekeeping veterans with post traumatic stress disorder (PTSD) have significant impairments in health-related quality of life according to research by Dr. J. Donald Richardson of The University of Western Ontario and his co-investigators.
TALLAHASSEE, Fla. -- Birds of a feather flock together, according to the old adage, and adolescent males who possess a certain type of variation in a specific gene are more likely to flock to delinquent peers, according to a landmark study led by Florida State University criminologist Kevin M. Beaver.
"This research is groundbreaking because it shows that the propensity in some adolescents to affiliate with delinquent peers is tied up in the genome," said Beaver, an assistant professor in the FSU College of Criminology and Criminal Justice.
A new study reveals that women who smoke are at greater risk of developing major depressive disorder. The study has been published today the British Journal of Psychiatry.
Australian researchers from the University of Melbourne and Geelng's Barwon Health assessed a group of 1043 Australian women, whose health had been monitored for a decade as part of the Geelong Osteoporosis Study.
On their ten year follow up participants were given an additional test of a psychiatric assessment.
Research articles that will be published in the October 2008 issue of BioScience are as follows:
Fungal Community Ecology: A Hybrid Beast with a Molecular Master. Kabir G. Peay, Peter G. Kennedy, and Thomas D. Bruns.
Westchester, Ill.— A study in the Oct. 1 issue of the journal Sleep shows that the successful manipulation of sensorimotor rhythm (SMR) amplitude by instrumental SMR conditioning (ISC) improved sleep quality as well as declarative learning. ISC might thus be considered a promising non-pharmacological treatment for primary insomnia.
A link between reduced levels of the 'stress hormone' cortisol and antisocial behaviour in male adolescents has been discovered by a research team at the University of Cambridge.
Levels of cortisol in the body usually increase when people undergo a stressful experience, such as public speaking, sitting an exam, or having surgery. It enhances memory formation and is thought to make people behave more cautiously and to help them regulate their emotions, particularly their temper and violent impulses.
In a large group of Medicare beneficiaries with diabetes, depression was associated with a higher death rate from all causes during a two-year study period. The findings are published in the October 2008 Journal of General Internal Medicine.
There's a lot of truth in the old proverb "experience is the best teacher," and apparently it even applies to 10-month-old infants.
Researchers have found that infants who had an opportunity to use a plastic cane to get an out-of-reach toy were better able to understand the goal of another person's use of a similar tool than were infants who had previously only watched an adult use a cane to retrieve a toy.