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Science News for August 10, 2010


Distracted drivers benefit from in-car driving coach

A recent study by Linda Ng Boyle found that an in-car coach using eye tracking technology significantly reduced the time until collision among high-risk young drivers, more than doubling their time. The system provided continual feedback to drivers who needed it most, leading to a significant improvement in their driving behavior.

SourceUniversity of Washington·JournalJournal of Transportation Engineering·DateAug 10, 2010

Drug coverage under Medicare leads to increased use of antibiotics

A new study found that improved prescription drug coverage under Medicare Part D has led to an increase in the use of antibiotics by seniors, particularly for brand-name and more expensive drugs. The study suggests this could lead to unnecessary spending on broad-spectrum antibiotics and overuse of inappropriate antibiotics.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalArchives of Internal Medicine·DateAug 10, 2010

Neurochip technology developed by Canadian team

A team of Canadian scientists has developed a new neurochip technology that can track subtle changes in brain activity at the level of ion channels and synaptic potentials. This breakthrough allows for the analysis of several brain cells networking and performing automatic, large-scale drug screening for various brain dysfunctions.

SourceUniversity of Calgary·JournalBiomedical Microdevices·DateAug 10, 2010

Visits to emergency departments increases in recent years

Emergency department visit rates in the US significantly increased between 1997 and 2007, with a notable rise among adults with Medicaid. The number of emergency departments serving as safety-net facilities also expanded during this period. Increasing access to healthcare services for vulnerable populations remains a pressing concern.

SourceJAMA Network·JournalJAMA·DateAug 10, 2010

World's tiniest mirror

Researchers design and characterize a field-switchable nanomagnetic atom mirror, which can manipulate atoms by applying magnetic fields. The technology could be applied to devices that trap and confine atoms, potentially leading to breakthroughs in quantum computing.

SourceAmerican Institute of Physics·JournalJournal of Applied Physics·DateAug 10, 2010

Distinguishing 'senior moments' from Alzheimer's

Researchers at UCI identified a long-hidden part of the brain called the perforant path, which may help with early diagnosis. The study used ultrahigh-resolution MRI to track water molecules in the brain, confirming the passage weakens gradually with age and deteriorates more quickly due to Alzheimer's disease.

SourceUniversity of California - Irvine·JournalProceedings of the National Academy of Sciences·DateAug 10, 2010

Drugs to treat cocaine abuse?

A new study explores pharmacological strategies to reduce cocaine self-administration in animals, finding that dysregulation of mGlu2/3 and mGlu5 receptors may play a role in the transition to cocaine addiction. The research suggests that targeting mGlu2/3 receptors could be effective for treating severe cocaine-addicted individuals.

SourceElsevier·JournalBiological Psychiatry·DateAug 10, 2010

Stereotyping has a lasting negative impact

New research from the University of Toronto Scarborough shows that prejudice has a lasting negative impact on those who experience it. Studies have found that people perform poorly in situations where they feel stereotyped, with lingering effects on behavior such as aggression, over-eating, and poor decision-making.

SourceUniversity of Toronto·JournalJournal of Personality and Social Psychology·DateAug 10, 2010

Adult autism diagnosis by brain scan

Researchers at King's College London have developed a pioneering new method of diagnosing autism in adults using a quick brain scan that takes just 15 minutes. This technique can identify adults with autism with high accuracy and may lead to the screening for autism spectrum disorders in children.

Researchers find clues to gut immunity evolution, reveal similarities between fish and humans

A study at the University of Pennsylvania School of Veterinary Medicine has identified a key player in animal gut immunity and revealed surprising similarities between fish and humans. The discovery provides new insights into how humans maintain healthy intestines and could lead to improved approaches for keeping fish safe from pathogens.

SourceUniversity of Pennsylvania·JournalNature Immunology·DateAug 10, 2010

Study finds similar personality types in male and female domestic violence perpetrators

A study published in Journal of Abnormal Psychology found that subtypes of domestically violent men and women share similar personality traits and characteristics. The analysis of 567 civil psychiatric patients revealed three common subtypes among both genders, shedding light on the complexities of domestic violence.

SourceUniversity of British Columbia·JournalJournal of Abnormal Psychology·DateAug 10, 2010