Tag: "evolutionary" at medical news
Advances in understanding bipolar disorder topics of press briefings June 7, 8
...rch, which includes revolutionary technologies and evolutionary
practices that can transform treatments and services for people with bipolar disorder, in a special report at 1 p.m., Thursday June 7. The latest information about bipolar disorder in children and the role of attention-deficit hyperactivity di...
Texas aging meeting to feature NIA Interventions Testing Program 1st report
...imals that age at different rates, and a debate on evolutionary
theory and modern aging research. Highlights also will include a presentation on the CALERIE Study of caloric restriction in humans (calorie restriction is the only method proven thus far to extend life in rodents) and a report on life span expansi...
Research finds music training 'tunes' human auditory system
...nguistic Pitch Patterns." An old structure from an evolutionary
standpoint, the brainstem once was thought to only play a passive role in auditory processing. Using a novel experimental design, the researchers presented the Mandarin word "mi" to 20 adults as they watched a movie. Half had at least six years of ...
Nano world off the radar for most
...sors and biomimetic substances are all examples of evolutionary
nanotechnology," says Lakhtakia. "None has yet had any significant presence in the marketplace and these developments will not be real for many years." Currently, normal incremental changes bring sizes down to 100 nanometers and, therefore, qualif...
Study offers window into human behavior, brain disease
...age 65. Because the cells arose only recently in evolutionary
history -- in a common ancestor of great apes and ..." he reflects. "I think it's fascinating from an evolutionary
perspective that we have these new neurons that are involved in social behavior that are selectively...
Forget basal body temperature -- check out her clothes
... studies have been devoted to identifying what the evolutionary
advantage might be to disguising fertility. Yet the study, which publishes Oct. 10 in the online version of the scholarly journal Hormones and Behavior, found that even total strangers could detect a difference in women's grooming habits when they ...
Perceived facial similarity in children is an estimate of kin recognition
...ent ('facial similarity') can be simply defined in evolutionary
terms: judged facial similarity of children appears to be little more than a visual assessment of genetic relatedness," said Maloney....
Public Library of Science to launch new, open access journal on neglected tropical diseases
...ck Brown, and University of California at Berkeley evolutionary
biologist Michael Eisen. Dr. Varmus said: "The launch of PLoS Neglected Tropical Diseases means that the latest knowledge on neglected diseases will be disseminated globally and will be freely available to all, so that everyone can reap the benefit...
Seeing two figures in coordinated action helps brain pick out movements of one
...ation about actions, and that there can be a clear evolutionary
advantage - improved visual discrimination - to doing so," said Neri. The researchers pointed out that the human brain is constantly adapting to limited amounts of visual information, enabling us to imagine a full picture of a tiger, for instance, ...
Stanford snake venom study shows that certain cells may eliminate poison
...een predators with venom and their prey "a kind of evolutionary
arms race." He and Metz suspect that, given the broad range of venoms that have been developed by snakes and other creatures, mast cells probably won't perform as well against every type of venom. "We expect that there will be some snake venoms tha...
Erotic images elicit strong response from brain
...onse to erotic pictures suggests that, perhaps for evolutionary
reasons, our brains are programmed to preferentially respond to erotic material. "Usually men subjectively rate erotic material much higher than women," he says. "So based on those data we would expect lower responses in women, but that was not the c...
JCI table of contents: May 1, 2006
...w.the-jci.org/article.php?id=28508 IMMUNOLOGY An evolutionary
detour for the immune response The complexity of ...COMPANYING COMMENTARY TITLE: Bypassing complement: evolutionary
lessons and future implications AUTHOR CONTACT: John P. Atkinson Washington University School of Me...
T cell 'brakes' lost during human evolution
...rillas (the "great apes" which are human's closest evolutionary
relatives) human T cells lack expression of certa... Siglecs. The explanation for this human-specific evolutionary
loss of Siglecs is currently unknown. The UCSD scientists speculate that this may have been due to ...
A Jekyll and Hyde of cytokines: IL-25 both promotes and limits inflammatory diseases
...ne response that causes allergies and asthma is an evolutionary
hangover resulting from mankind's historical fight with parasitic worm infections. That is, a type 2 response that was once useful in fighting worm infections has now become a dangerous menace, causing inflammatory responses to commonly encountered ...
Controlling your (nerve) impulses
...ison led Cooper and colleagues to realize that the evolutionary
split between vertebrates and invertebrates, as de...along neurons, occurred during a similar period in evolutionary
history as the appearance of myelin. "Myelination and the coupling of axonal sodium and potassium ch...
Isolated female rats subjected to a 30-minute stressor heal faster than males
...y of Chicago. Results show 'real life' complexity; evolutionary
benefits of motherhood?The experiment involved Norway rats, a particularly social species of rats that lives in large colonies of closely spaced burrows with cooperative grooming, feeding and rearing of offspring. "They are not just any old animal, b...
Baby got math
...dies have broad implications for understanding the evolutionary
origins of numerical ability and how that ability has developed in humans, they said....
UCI joins international effort to model influenza outbreaks
A team led by UC Irvine evolutionary
biologist Robin Bush will receive $1.5 million ove...diseases. Bush, associate professor of ecology and evolutionary
biology, will develop computational models to analyze the evolutionary
changes that occurred during ...
In the mind's eye: How the brain makes a whole out of parts
...ain works. "Our ability to see is one of the great evolutionary
accomplishments of the human brain," Connor said. "We still don't know how the visual system accomplishes this marvel of information processing. Such experiments are beginning to reveal how large networks of neurons in the brain extract meaning from ...
UCLA paper examines how one disease may prevent another
...iologist J.B. Haldane proposed that malaria was an evolutionary
force for selecting malaria-resistant genes. He suggested that those carrying the gene for sickle cell anemia were better able to survive in malaria-infected areas. Leprosy patients have severe immune defects and cutaneous anergy -- an inability to ...