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Magnetic brain therapy may help spinal cord damage

A preliminary study has shown for the first time that it may be possible to help people who have suffered partial damage to their spinal cord by applying a magnetic therapy to their brain.

11 May 2004

Risk of prostate cancer greater in men over 50 with high levels of testosterone

Men over 50 years of age with high blood levels of testosterone have an increased risk of prostate cancer, according to a study by researchers at Johns Hopkins and the National Institute on Aging. The finding throws some doubt on the safety of testosterone replacement therapy, the investigators say.

11 May 2004

Neurobiologists pinpoint region of the brain responsible for storing distant memories

For the first time, UCLA neurobiologists have pinpointed a region of the brain called the anterior cingulate as responsible for retrieving and storing distant memories. Published in the May 7 edition of Science, the findings may suggest new ways of treating memory disorders, including Alzheimer's disease and other dementias.

6 May 2004

SPECT imaging may lead to early diagnosis of Alzheimer's

Alzheimer's disease (AD) currently afflicts approximately 4.5 million Americans. One of the most feared diseases of old age, AD robs its victims of their memories and personalities long before it takes their lives.

5 May 2004

A burst of brain energy depends more on a unique molecular cycle than on blood flow variation

A century old mystery is taking place in your head as you read these words. Blood vessels in regions of your brain are widening, bathing cells in an increased blood flow.

28 Apr 2004

Cognitive Neuroscientists Reveal Creative Brain Processes

Think Isaac Newton getting hit on the head with an apple or Alexander Graham Bell inventing the telephone. While these creative or “Aha!” moments often are associated with scientific discoveries and inventions, most people occasionally feel the thrill of insight when a solution that had eluded them suddenly becomes obvious.

20 Apr 2004

Brain cells can improve their ability when working together

Team work is just as important in your brain as it is on the playing field: A new study published online on April 19 by the Proceedings of the National Academy of Sciences reports that groups of brain cells can substantially improve their ability to discriminate between different orientations of simple visual patterns by synchronizing their electrical activity.

19 Apr 2004

New information about how the brain processes information about an object's brightness

Howard Hughes Medical Institute scientists at The Salk Institute have discovered a new class of optical illusion that they have studied in detail to show that humans use both the timing and spatial context of a visual stimulus to judge brightness.

19 Apr 2004

New evidence that brain circuits involved in drug addiction are also activated by the desire for food

Scientists at the U.S. Department of Energy’s Brookhaven National Laboratory have produced new evidence that brain circuits involved in drug addiction are also activated by the desire for food.

19 Apr 2004

New scanning technology allows researchers to look into a kidney

Kidney disease may affect as many as one in twelve people, and causes millions of deaths each year. Currently, the diagnosis of kidney function relies mainly on blood and urine tests, an indirect means of figuring out how well they’re working.

19 Apr 2004

Brain folding could be an indication of how smart a person is

A study by Melbourne scientists has provided the first direct evidence that differences in the way the surface of the human brain is folded could be an indication of how smart a person is.

18 Apr 2004

On-board brain chips could help stroke and cerebral palsy victims

Cyberkinetics Inc has received U.S. Food and Drug Administration approval to begin a clinical trial in which four-square-millimetre chips will be placed beneath the skulls of paralyzed patients.

18 Apr 2004

Research shows giving Tourette Syndrome patients the drug levodopa normalizes brain activity

Scientists have known for years that abnormal activity involving a brain chemical called dopamine is somehow connected to the movements and vocalizations, or tics, associated with Tourette syndrome. Now neuroscience researchers at Washington University School of Medicine in St. Louis have found brain activity in these patients is abnormal during memory tasks, as well.

5 Apr 2004

Discovery of molecule that is part of the machinery that mediates the sense of hearing

A group of scientists at The Scripps Research Institute, at the University of California in San Diego, and at the Oregon Hearing Research Center and Vollum Institute at Oregon Health & Science University have discovered a key molecule that is part of the machinery that mediates the sense of hearing.

28 Mar 2004

Discovery of new gene sheds light on human brain development

With the identification of the gene responsible for a newly recognized type of mental retardation, researchers at Beth Israel Deaconess Medical Center (BIDMC) have also discovered what appears to be the key target in the evolution of the frontal lobes of the brain's cerebral cortex. The findings offer a key insight into the complex puzzle of human brain development - and the evolution of human behavior.

25 Mar 2004

Brain signals could act as remote controls

In their first human studies of the feasibility of using brain signals to operate external devices, researchers at Duke University Medical Center report that arrays of electrodes can provide useable signals for controlling such devices. The research team is now working to develop prototype devices that may enable paralyzed people to operate "neuroprosthetic" and other external devices using only their brain signals.

25 Mar 2004

Side Effects of Diabetes Drugs Involve Unsuspected Brain Region

A brain region involved in emotional and intellectual processes appears to also play an unsuspected role in the body’s visceral response to dangerously low blood sugar levels, according to research at Washington University School of Medicine in St Louis. Low blood sugar, called hypoglycemia, is a common and dangerous side effect of drugs that control insulin levels in people with diabetes.

22 Mar 2004