Tag: "behavioral" at biology news
Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says
...mood-disturbed pregnancies are linked to childrens behavioral
disorders, like depression, hyperactivity and anxi... watching for biological hints as to why sleep and behavioral
disturbances so often crop up together. In the meantime, pregnant women concerned about how their...
Modeling the restless brain
...ould let them tie neural activity to cognitive and behavioral
performance and ask questions about differences in the brains of individual persons. Sporns said this research could lead to clinical applications, offering new diagnostic tools for brain disorders such as Alzheimer's disease that are known to af...
Undergraduate research shows leaderless honeybee organizing
...ported his research in an article appearing in the behavioral
biology research journal Ethology, with co-authors....” Schneider’s lab studies the honeybee and its behavioral
ecology. Like humans, honeybees are remarkable for living in large organized groups where highly de...
Newly discovered antibody may be body's natural defense against Alzheimer's
...l humans. Lead researcher Dr. Norman Relkin, a behavioral
neurologist and neuroscientist at NewYork-Presbyterian Hospital/Weill Cornell Medical Center, will present the findings on Monday, June 11, at 3:30 pm, at the "2nd Alzheimer's Association International Conference on Prevention of Dementia," in Washin...
Researchers reveal structure of protein altered in autism
...autism spectrum disorders are manifested in subtle behavioral
abnormalities that are seen at an early age. “Abnormal synaptic development in nerve connections is likely to lead to cognitive deficits seen in patients with autism,” said Taylor. He added that synapse formation and maintenance occurs early in d...
Study shows lizard moms dress their children for success
...involving hormones, genetics, social interactions, behavioral
strategies, and predators. Previous studies by Sin...d his collaborators have described three different behavioral
strategies that correlate with throat color in side-blotched lizards. Orange-throated males are high...
Electric fish conduct electric duets in aquatic courtship
... The study is the first to compare electrical and behavioral
displays in breeding and nonbreeding Brienomyrus brachyistius, a type of mormyrid electric fish, which emit weak electric fields from a batterylike organ in their tails to sense their surroundings and communicate their species, sex and social status ...
How the brain's backup system compensates for stroke
...ecovered. The fMRI scans revealed that during this behavioral
recovery, the right PMd and other areas involved in premotor function underwent a compensatory increase in activity. The researchers' experiments also established that this activity increase was functionally specific for the behaviors governed by the...
Gene malfunctions cause schizophrenia, depression symptoms in mice
... indeed, one of the mutant mouse strains exhibited behavioral
abnormalities and memory deficiencies resembling t...ysiological, pharmacological, neuroanatomical, and behavioral
phenotypes, which when taken together are strikingly consistent with the emerging picture from clini...
Do fruit flies have free will?
...ating disorders leading to compromised spontaneous behavioral
variability in humans such as depression, schizophrenia or obsessive compulsive disorder. The research will appear in the May 16, 2007 issue of the open-access journal PLoS ONE. ...
In young mice, gregariousness seems to reside in the genes
...to their environment. By controlling for a host of behavioral
variables during the course of adolescent developm...vations among juveniles of the two mouse strains - behavioral
variations that could only be explained by genetic differences. Intriguingly, the Wisconsin rese...
Stanford-led study closes in on genes that may predispose some people to severe depression
...Douglas Levinson, MD, professor of psychiatry and behavioral
sciences at the Stanford University School of Medicine. "This finding has a very good chance of leading to a discovery of a gene that could yield important information about why some people develop depression," said Levinson. If problematic gen...
Good behavior, religiousness may be genetic
...ividuals are more social and giving because of the behavioral
mandates set for them is incorrect. "This study shows that religiousness occurs with these behaviors also because there are genes that predispose them to it." "There is, of course, no specific gene for religiousness, but individuals do have biolog...
Mutation improves memory, may lead to memory-enhancing pill
...this gene showed improved performance in classical behavioral
memory tests, they show. Moreover, animals treated with a small molecule that had the opposite effect—leading ultimately to an increase in the memory-blocker's concentration—showed signs of memory impairment. "There are very few examples where you...
Horse genome assembled
...identify the genetic contributions to physical and behavioral
differences, as well as to disease susceptibility. There are more than 80 known genetic conditions in horses that are genetically similar to disorders seen in humans, including musculoskeletal, neuromuscular, cardiovascular and respiratory diseases. ...
Tracking sperm whales and jumbo squid
...a is a uniquely advantageous location to study the behavioral
ecology of sperm whales and their squid prey," the authors wrote. "Sperm whales are abundant year-round and appear to feed heavily on jumbo squid, a species that is easily captured and amenable to tagging. To our knowledge, this is the first attempt ...
Gene variations contribute to aggression and anger in women
...s and behavior, the women were not prescreened for behavioral
type. Researchers found that those who had one or both of two alterations in the promoter region of the serotonin receptor 2C gene were more likely to score lower on two common tests for anger, hostility and aggression. These findings may aid in e...
Bisexual fruit flies show new role for neurochemical
...understand fly bisexuality sounds silly, but these behavioral
changes are important evidence that ambient extracellular glutamate and xCT transport proteins play important, unsuspected roles in brain function," Featherstone said. "We think we'll be able to learn a lot about perception and development from figur...
Cold sore virus might play role in Alzheimer's disease
...k plaques or tangles and certainly long before any behavioral
changes are seen. Such inflammation often is a byproduct when the immune system fights an infection....
Analysis of rhesus monkey genome uncovers genetic differences with humans, chimps
...rve to enhance essential research in neuroscience, behavioral
biology, reproductive physiology, endocrinology and cardiovascular studies. In addition, the rhesus serves as a valuable model for studying other human infectious diseases and for vaccine research. The sequencing of the rhesus genome was conduc...
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