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Tag: "social" at biology news

It's in the genes: Study opens door to new treatment of the blues

...d Neurotrophic Factor (BDNF) in the development of social aversion. Mice treated with a transfer technique t...brain underlying psychiatric disorders that have a social withdrawal component, such as social phobia, depression and post-traumatic stress disorder, and that...

Spousal illness can trigger partner death

...ful behavior, such as drinking. Stress and lack of social support may also adversely affect immunologic meas...onstrates yet another important connection between social networks and health," says Richard M. Suzman, PhD, associate director of the National Institute of A...

Utah researchers confirm chromosome may harbor autism gene

... age 3 and is characterized by impaired ability in social interactions and communication. Those with autism also display repetitive behaviors and interests. The study involved 31 members of a family of Northern European ancestry, seven of whom have autism or an autism-related disorder. The family members...

When mice choose mates, experience counts

...d in the processing and integration of inadvertent social information used in directing mate choice of femal... same way in humans. But many have speculated that social influences do play a role in how we choose our friends and partners." ...

Ancient DNA provides clues to the evolution of social behavior

... the Argentine highlands, it has evolved a complex social structure that's unique among the more than 50 clo...s, and could provide insight into the evolution of social behavior in other animals, including ants and humans. Population crash Named for the ''tuc-tuc-t...

Medical experts: US unlikely to have enough vaccines to stop avian flu

...us become pandemic, hand washing, mask wearing and social distancing. Unfortunately, the efficacy of such strategies in preventing the spread of infectious diseases has not been extensively studied, Bruine de Bruin said. Although the federal government has expressed a commitment to open communication about ...

Attention shoppers: Researchers find neurons that encode the value of different goods

...ating disorders, compulsive gambling, and abnormal social behavior. Moreover, the OFC is part of brain circuitry implicated in drug abuse, which can also be thought of as a choice deficit. Padoa-Schioppa and Assad's results establish a more direct link between the activity of OFC and the mental valuation pr...

Manipulating single cell receptor alters animal behavior

...ing and memory, eating, drinking, reproduction and social interaction." The study examines intracellular si...ing learning and memory, feeding, reproduction and social interactions.Daniels says the regulation of behavioral states by angiotensin "is a well-studied prob...

Ahead of the game

..., the researchers suggest that developments in the social realm of modern human life, allowing routine use o...n hunting practices. "The establishment of larger social networks allowed the replacement of Neanderthals in the Caucasus," write the authors. "Our study als...

'Executive' monkeys influenced by other executives, not subordinates

...eflex action; that it also involves lightning-fast social perception. Such a discovery in monkeys gives the...atory -- led Shepherd and Platt to explore whether social stimuli might also play a role in such decisions. Those previous studies showed both that monkeys wi...

World faces challenge as life expectancies lengthen, scientist says

...n unprecedented rate, bringing with them a host of social and economic challenges, says biologist Shripad Tuljapurkar of Stanford University. The combined impact of these medical advances would have major implications for the global community in the new century. Tuljapurkar, the Dean and Virginia Morrison ...

Antioxidant selenium offers no heart-disease protection

...erio Stranges, M.D., Ph.D., assistant professor of social and preventive medicine in the School of Public Health and Health Professions, University at Buffalo, is first author. "Our results extend previous research based on smaller intervention trials focusing on cardiovascular risk factors," said Stranges...

Cure for cancer worth $50 trillion

...hes the primary ages of disease-related death, the social value of improvements in health will continue to r...improvements is a first step toward evaluating the social returns to medical research and health-augmenting innovations," write the authors. "Improvements in ...

Hyena mothers give their cubs a helpful dose of hormones

...s to demonstrate a relationship between a female's social rank and her ability to influence her offspring's ...uccess in both sexes. In hyena packs, male-female social roles are reversed from what is normally found in nature--that is, female hyenas are larger, more ag...

Sexual reproduction delays aging in a mammalian species

...ed by differences in intrinsic biological quality, social rank, or workload between breeders and non-breeders. These findings provide unexpected new information for understanding the evolution of life histories, and they shed new light on the old question of the connection between sexual activity and agin...

Genetic and environmental influences on alcohol consumption among rhesus monkeys

...rtant for diseases like alcoholism where there are social factors affecting alcohol consumption. And, finally, because we can control their social environment and precisely measure their exposure to alcohol, whereas human studies often rely on sel...

Alcoholism, smoking and genetics among Plains American Indians

...e onset alcoholism and increased alcohol intake in social drinkers, Enoch and her colleagues have found that... "And three," she noted, "at least one third are social smokers who never progress to 'real' smoking, they just smoke in social settings. This may be a thr...

Taking a bite out of a fellow worker helps wasps recruit new foragers

.... Biting is a way that workers in a colony of the social wasp Polybia occidentalis recruit new foragers to ...e component. O'Donnell and other scientists study social insects looking for clues about how social behavior evolved and how it is maintained since there are...

HIV/AIDS rates in Tijuana, Mexico increasing at alarming rate

...igration is linked to lower socio-economic status, social and political alienation, lower awareness of HIV/AIDS and, for some, the need to turn to substance use and sex work to fill the perceived void ?all contributing factors that can lead to increased vulnerability to HIV infection. Although homosexual...

Animal models show that anabolic steroids flip the adolescent brain's switch for aggression

...The anterior hypothalamus regulates aggression and social behavior. Thus, vasopressin ?already known to stimulate that area ?appears to fuel the engine of aggression. And, says Melloni, "Steroids step on the gas for agression." Thus, the neuroscientists conclude that the aggressiveness triggered by anabo...

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