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In mice, anxiety is linked to immune system
In the first study ever to genetically link the immune system to normal behavior, scientists at Rockefeller and Columbia universities show that mast cells, known as the pharmacologic bombshells of the immune system, directly influence how mice respond to stressful situations. view more (2008-10-28)
Magnetic misfits: South seeking bacteria in the Northern Hemisphere
Magnetotactic bacteria contain chains of magnetic iron minerals that allow them to orient in the earth's magnetic field much like living compass needles. view more (2006-01-23)
Larry Young on animals and autism clues, environmental impact on hormone brain function
As animal models go, the vole isn't near the top of the list. In fact, it wasn't even on the list until relatively recently. Not to be confused with the mole, a much smaller and scientifically less-interesting rodent, voles are about the size of hamsters, but more squat. view more (2005-07-20)
Poor sleep linked to suicidal behavior among children and adolescents with depressive episodes
A research abstract that will be presented on Thursday at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS), finds a link between poor sleep and suicidal behavior among children and adolescents with depressive episodes. view more (2008-06-12)
Study demonstrates remarkable power of social norms
Most people want to be normal. So, when we are given information that underscores our deviancy, the natural impulse is to get ourselves as quickly as we can back toward the center. view more (2007-04-09)
Adult crime linked to childhood anxiety
Being nervous, socially isolated, anxious or neurotic during childhood protects young men from becoming criminal offenders until they enter adulthood, but the protective effect seems to wear off after the age of 21. view more (2008-11-04)
Neurotransmitter orexin associated with pleasure and reward pathways in the brain
Researchers at the University of Pennsylvania School of Medicine have discovered that the recently identified neurotransmitter orexin (also known as hypocretin) influences reward processing by activating neurons in the lateral hypothalamus region of the brain. view more (2005-08-26)
Laser experiments reveal strange properties of superfluids
Princeton University electrical engineers are using lasers to shed light on the behavior of superfluids - strange, frictionless liquids that are difficult to create and study. view more (2006-12-26)
A new mouse model of mania
Bipolar Disorder (BPD or manic-depressive illness) is one of the most serious of all mental disorders, affecting millions of individuals worldwide. view more (2008-03-12)
Chimpanzees found to use tools to hunt mammalian prey
Reporting findings that help shape our understanding of how tool use has evolved among primates, researchers have discovered evidence that chimpanzees, at least under some conditions, are capable of habitually fashioning and using tools to hunt mammalian prey. view more (2007-02-23)
Poor sleep hygiene in children associated with behavioral problems
A research abstract that will be presented Wednesday at SLEEP 2007, the 21st Annual Meeting of the Associated Professional Sleep Societies (APSS) finds that a snoring child's poor sleep hygiene habits can have a negative influence on his or her daytime behavior. view more (2007-06-13)
Forsyth scientists gain new understanding of adult stem cell regulation
Forsyth Institute scientists have discovered an important mechanism for controlling the behavior of adult stem cells. Research with the flatworm, planaria, found a novel role for the proteins involved in cell-to-cell communication. view more (2007-08-01)
Fruit Fly Aggression Studies Have Relevance to Animal, Human Populations
Even the tiny, mild-mannered fruit fly can be a little mean sometimes - especially when there's a choice bit of rotten fruit to fight over. And, like people, some flies have shorter tempers than others. view more (2006-09-21)
New Study Examines How Role Models Influence Ethical Behavior
As the United States continues to grapple with ethical scandals in government and business, researchers at Oregon State University and Texas A&M University are examining the ethical behavior of college students-particularly students' behavior in negotiations. view more (2006-01-09)
Targeting Tumor Behavior May Lead To New Liver Cancer Drugs
Ohio State University cancer researchers have used computational and genomic methods to identify possible anti-cancer agents that may block a particular kind of tumor behavior. view more (2009-06-19)
Sports machismo may be cue to male teen violence
The sports culture surrounding football and wrestling may be fueling aggressive and violent behavior not only among teen male players but also among their male friends and peers on and off the field, according to a Penn State study. view more (2008-01-24)
A rarity among arachnids, predatory whip spiders have a sociable family life, CU researcher finds
Whip spiders, considered by many to be creepy-crawly, are giving new meaning to the term touchy-feely. view more (2007-03-13)
Daily alcohol use causes changes in sexual behavior, new study reveals
A team of researchers at Penn Sate has used an animal model to reveal, for the first time, a physiological basis for the effect of alcohol on male sexual behavior, including increased sexual arousal and decreased sexual inhibition. view more (2008-01-03)
Financial risk-taking behavior is associated with higher testosterone levels
Higher levels of testosterone are correlated with financial risk-taking behavior, according to a new study in which men's testosterone levels were assessed before participation in an investment game. The findings help to shed light on the evolutionary function and biological origins of risk taking. view more (2008-09-30)
With a flash of light, a neuron's function is revealed
There's a new way to explore biology's secrets. With a flash of light, scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory and the University of California, Berkeley zeroed in on the type of neural cell that controls swimming in larval zebrafish. view more (2009-09-17)
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