Tag: "behaviors" at biology news
Deep-sea exploration beneath Katrina's wake
...ly sensitive intensified camera to capture natural behaviors
and footage of animals that have evaded scientists that used other, more disruptive tools such as relatively loud ROVs and submersibles with their bright lights. Last year, the system captured footage of a six-foot squid believed to be a new species...
Getting down to basicsnew technology will make it possible
...dn't do before." In addition to simulating complex behaviors
with "many many particles," Weare's team devotes about 40 percent of its efforts to developing algorithms and code to be implemented on a new generation of high-performance machines and architecture that is still on the horizon. "There's a new wind b...
Anemone armies battle to a standoff
... that very complex, sophisticated, and coordinated behaviors
can emerge at the level of the group, even when the group members are very simple organisms with nothing resembling a brain, Grosberg said. The research was published in the June issue of the journal Animal Behaviour....
Mouse model of Rett Syndrome displays reduced cortical activity
...gly normal at birth and begin to exhibit Rett-like behaviors
by 5 weeks of age. Interestingly, the groups found that the excitatory-inhibitory balance in the cortex of the mice was shifted towards inhibition (decreased brain activity). They surmise that this shift toward inhibition in the cortex and perhaps o...
Gambling monkeys give insight into neural machinery of risk
...o understanding of the genetic basis of compulsive behaviors
and other such behavioral disorders....
California Institute researchers unveil computer graphics innovations at SIGGRAPH
...stem responds to movement, participants engage its behaviors
and "play the space" as an instrument....
Discovery of new dopamine action may yield alternative psychiatric drugs
...k is required to identify which dopamine-dependent behaviors
rely on each pathway. If the two mechanisms contro...articular drugs might target some dopamine-related behaviors
and not others, thereby limiting the side effects of psychiatric therapy. Akt also plays important r...
Study separates behavioral and physiological mechanisms in testosterone mediated trade-offs
...tosterone regulates the expression of reproductive behaviors
and sexual traits of many animal species. While high levels of testosterone are required for reproductive activities or for the expression of sexual traits, these are often costly, and can lead, for instance, to increased parasite infection. Such cos...
Multiple genetic 'flavors' may explain autism
...ve behaviors," Sutcliffe explained. These types of behaviors
are a common characteristic of autism and related disorders like obsessive-compulsive disorders. The findings underscore the relationship between autism and disorders like OCD and may explain why SSRIs are effective in treating these conditions, he ...
New clue to cocaine addicts' quirky behavior
...the affective- and context-inappropriate impulsive behaviors
that are characteristic of drug addiction."...
Endocannabinoids the brain's cannabis demonstrate novel modes of action to stress
...re very old in evolutionary terms, and they govern behaviors
that are of fundamental importance to most species."...
Recent developments on the genetics of alcohol use
...nsidered to be 'externalizing behaviors,' that is, behaviors
an individual expresses outwardly towards others," said Hesselbrock. "Contrarily, internalizing behaviors
that are directed inward and include depression and anxiety. For some time, scientist...
Molecular trigger for Huntington's disease found
...normalities that the mice otherwise display. These behaviors
include abnormal reflexes such as an inhibited startle response to loud noise, which is also present in human HD patients. "In summary, our study establishes a specific role for p53 in HD," concluded Sawa and colleagues. "As p53 is a nuclear transcri...
Landscape corridors promote animal, plant dispersal
...earch, the study shows that easy-to-measure animal behaviors
can serve as predictors for whether landscape corr...act, according to Haddad. The researchers observed behaviors
of bluebirds during the course of the study and found that the birds were not necessarily using the ...
Geneticists identify 'master switch' that causes female flies to behave like males
...ed her proboscis. Both are male-specific courtship behaviors
that lead up to sexual intercourse. ''This study g...ndings provide further evidence that inborn sexual behaviors
are hard-wired in animals' genes. ''When you come to behaviors
that are innate, and therefore someho...
Genes exert powerful effect on sexual behavior
... especially important in fruit flies - most of the behaviors
they exhibit are largely programmed by birth, and ...enes or small groups of genes to influence complex behaviors
ranging from a bird singing its song to the ability of a human to play a piano. The study also sugg...
Junk DNA shapes social behavior
...own the vasopressin receptor gene regulates social behaviors
in many species. The researchers bred two groups of prairie voles with short and long versions of the junk DNA. By comparing the behavior of male offspring after they matured, they discovered microsatellite length affects gene expression patterns in ...
Rodent social behavior encoded in junk DNA
...tor determined male-female relations and parenting behaviors
in a species of voles. Drs. Larry Young and Elizabeth Hammock, Emory University, report on their findings in the mouse-like animals native to the American Midwest in the June 10, 2005 Science . The discovery is the latest in a two decades-old scient...
Highlights of the June 2005 Journal of the American Dietetic Association
..."eating breakfast may be associated with healthful behaviors
such as physical activity." The researchers urge health professionals to "be aware of the age and race-related differences in breakfast eating promote the importance of eating a healthful breakfast meal to children and adolescents and be aware that A...
Non-dieters more successful at boosting health than dieters, study finds
...activity also were evaluated, as were their eating behaviors
and attitudes toward weight, body shape and eating.Study results Almost all (92 percent) of the non-dieting group stayed in the study throughout the treatment period, while almost half (42 percent) of the dieters dropped out before finishing treatmen...
1 2 3 4 5 6 7 8 9 10