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Confidence is key to gauging impressions we make

03:07 11-03-2010; source: www.sciencedaily.com

The gift of seeing ourselves as others see us comes in handy when judging how we've made a first impression. Yet many come away with little or no clue about how that first impression was perceived. A new study suggests confidence is a key indicator of how well we've assessed impressions left behind.

Movement disorder symptoms are lessened by an antibiotic: Treating worms with ampicillin helps restore normal movement

03:07 11-03-2010; source: www.sciencedaily.com

Discovery of an antibiotic's capacity to improve cell function in laboratory tests is providing movement disorder researchers with leads to more desirable molecules with potentially similar traits, according to scientists.

Link between brain chemical, cognitive decline in schizophrenia demonstrated

03:07 11-03-2010; source: www.sciencedaily.com

In one of the first such studies involving human patients with schizophrenia, researchers have provided evidence that deficits in a brain chemical may be responsible for some of the debilitating cognitive deficits -- poor attention, memory and problem-solving abilities -- that accompany the delusions and hallucinations that are the hallmarks of the disorder.

Brain mechanism may explain alcohol cravings that drive relapse

00:07 11-03-2010; source: www.sciencedaily.com

New research provides exciting insight into the molecular mechanisms associated with addiction and relapse. The study uncovers a crucial mechanism that facilitates motivation for alcohol after extended abstinence and opens new avenues for potential therapeutic intervention.

Years of smoking associated with lower Parkinson's risk, not number of cigarettes per day

23:07 10-03-2010; source: www.sciencedaily.com

Researchers have new insight into the relationship between Parkinson's disease and smoking. Several studies have shown that smokers have a lower risk of developing Parkinson's disease. A new study shows that smoking for a greater number of years may reduce the risk of the disease, but smoking a larger number of cigarettes per day may not reduce the risk.

Students' perceptions of Earth's age influence acceptance of human evolution

23:07 10-03-2010; source: www.sciencedaily.com

High school and college students who understand the geological age of the Earth (4.5 billion years) are much more likely to understand and accept human evolution, according to a new study. A 2009 Gallup poll reported that 16 percent of biology teachers believe God created humans in their present form at some time during the last 10,000 years.