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Science News Archive December 2007 - Page 16


Page 16 of 16

Were the first stars dark?

A new study suggests that the universe's first stars were dark, invisible 'dark stars' powered by dark matter. These massive stars could be billions of years old and would generate gamma rays, neutrinos, and antimatter.

SourceUniversity of Utah·JournalPhysical Review Letters·DateDec 2, 2007

How cells keep in shape

Researchers at EMBL and AMOLF discovered a new experimental approach to study microtubule end tracking proteins, which are crucial for cell shape development. The study sheds light on the interaction between proteins and the cell's skeleton, revealing how +TIPs recognize dynamic microtubule ends.

A real attention grabber

Researchers at the University of Western Ontario have developed a new method to measure covert attention, shedding light on how the brain directs attention. By recording muscle activity in the neck, scientists can now detect when someone's eyes are not moving but still focusing on something.

SourceUniversity of Western Ontario·JournalNature Neuroscience·DateDec 2, 2007

Practice parameters discuss treatment for narcolepsy, other hypersomnias of central origin

The American Academy of Sleep Medicine has updated its practice parameters for the treatment of narcolepsy and other central hypersomnias. The guidelines recommend a comprehensive approach to managing symptoms, including modafinil, sodium oxybate, and tricyclic antidepressants. Regular follow-up with healthcare providers is crucial to ...

Brain patterns of former anorexics reveal clues to disorder's lasting impact

Researchers found that former anorexics showed distinct brain pattern differences, particularly in emotional response regions. Their brains were more focused on consequences and planning, suggesting a persistent risk of obsessive thinking. This study may lead to better understanding and treatment development for anorexia nervosa.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalAmerican Journal of Psychiatry·DateDec 1, 2007