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| Medicine articles |
Largest genomic search finds genes that may contribute to autism
An international team of researchers from 19 countries has identified one gene and a previously unidentified region of another chromosome as the location of another gene that may contribute to a child's chances of having autism.
Memory mechanisms
Better tie that string around your finger a little tighter. It may turn out the reason some people grow increasingly forgetful as they age is less about how old they are and more about subtle changes in the way the brain files memories and makes room for new ones — differences perhaps better blamed on patterns of cell-to-cell communication than the number of birthday candles decorating the cake.
Man's best friend lends insight into human evolution
Flexibly drawing inferences about the intentions of other individuals in order to cooperate in complex tasks is a basic part of everyday life that we humans take for granted. But, according to evolutionary psychologist Brian Hare at the Max Planck Institute in Germany, this ability is present in other species as well.
Computer model mimics neural processes in object recognition
For the first time, MIT scientists have applied a computer model of how the brain processes visual information to a complex, real world task: recognizing the objects in a busy street scene. The researchers were pleasantly surprised at the power of this new approach.
Scientists unveil piece of hiv protein that may be key to aids vaccine development
In a finding that could have profound implications for AIDS vaccine design, researchers led by a team at the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health (NIH), have generated an atomic-level picture of a key portion of an HIV surface protein as it looks when bound to an infection-fighting antibody. Unlike much of the constantly mutating virus, this protein component is stable and — more importantly, say the researchers — appears vulnerable to attack from this specific antibody, known as b12, that can broadly neutralize HIV.
Metacognition: faced with a test, rats can check their knowledge first
Researchers have found evidence that rats are capable of metacognition—that is, they can possess knowledge of their own cognitive states. This ability, which can also be thought of as the capacity to assess or reflect on one's own mental processes, was previously only recognized in humans and other primates.
Hairstyle of a neuron: from hairy to mushroom-head
Synapses are essential for the brain's normal function: their absence or presence is tightly linked to the brain's ability to transfer, process, and store information. Synapses are thus constantly generated and degraded. However, the mechanisms of this complex remodelling process remained largely unknown. Scientists of the Max Planck Institute of Neurobiology have now identified the molecular players involved in synapse formation.
Research on the color red shows definite impact on achievement
The color red can affect how people function: Red means danger and commands us to stop in traffic. Researchers have now found that red also can keep people from performing their best on tests.
Individuals and populations differ in gene activity levels, not just genes
Much like how a person's genetic code differs from other individuals, the level at which those genes are activated in the body differs from one person to another, scientists have learned. And though some of those differences in gene activity are seen between different populations -- Asians versus Europeans, for instance -- more of those variations are due to individual-level factors, further obscuring the biological meaning of "race."
Neuroscientist records surprising brain dialogue during sleep
In work published in the Proceedings of the National Academy of Sciences, a research team led by a Brown University neuroscientist describes groundbreaking recordings of activity in two brain regions during deep sleep.
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Mit study shows those who once were blind can learn to see
How does the human brain "learn" to see? If the brain is deprived of visual input early in life, can it later learn to see at all?
Highly accomplished people more prone to failure than others when under stress
Talented people often choke under pressure because the distraction caused by stress consumes their working memory, research in Psychology has found.
Making memories that last a lifetime
Neurobiologists have discovered a mechanism by which the constantly changing brain retains memories—from that dog bite to that first kiss. They have found that the brain co-opts the same machinery by which cells stably alter their genes to specialize during embryonic development.
Prefrontal cortex loses neurons during adolescence
Researchers at the University of Illinois have found that adolescence is a time of remodeling in the prefrontal cortex, a brain structure dedicated to higher functions such as planning and social behaviors.
Research finds musical training can 'tune' the auditory system
A new study by Northwestern University researchers suggests that Mom was right when she insisted that you continue music lessons -- even after it was clear that a professional music career was not in your future.
'Ancestral eve' was mother of all tooth decay
A New York University College of Dentistry (NYUCD) research team has found the first oral bacterial evidence supporting the dispersal of modern Homo sapiens out of Africa to Asia.
Scientists to grow bone in the laboratory
Damaged bones could one day be repaired using bone tissue grown in the laboratory, thanks to technology being developed through a new £310,000 grant to the University of Bath.
Goooal! New study shows goalie may influence direction of penalty kick in soccer
A penalty kick places a goalkeeper at such a disadvantage that only approximately 18% of penalty kicks are saved. However, some soccer fans think goalkeepers might save penalty kicks more easily by standing marginally to the left or right.
World first in medical robotics
Some 40 years after the release of the classic science fiction movie Fantastic Voyage, researchers in the NanoRobotics Laboratory of École Polytechnique de Montréal's Department of Computer Engineering and Institute of Biomedical Engineering have achieved a major technological breakthrough in the field of medical robotics. They have succeeded for the first time in guiding, in vivo and via computer control, a microdevice inside an artery, at a speed of 10 centimetres a second.
Virtual racing games linked to risk taking
Psychologists have taken the "media priming" effects of popular video console and PC-based games on the road, finding that virtual racing seems to lead to aggressive driving and a propensity for risk taking.
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| Quotes | By convention!
cussed Tom airily.
Cmon Scully... Itll be a nice trip through the woods-Fox Mulder
But what ... is it good for?
Engineer at IBM, 1968, commenting on the microchip.
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