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| Medicine articles |
Thinking too complicated?
How sensitive are neuronal networks to external interference? To what extent are neuronal network processes including the thinking patterns of the brain predefined?
Chronic pain harms the brain
People with unrelenting pain don't only suffer from the nonstop sensation of throbbing pain. They also have trouble sleeping, are often depressed, anxious and even have difficulty making simple decisions.
Why does the world appear stable while our eyes move?
Whenever we shift our gaze, attention is directed to a new target. This shift in attention causes a brief compression of visual space, according to a study published February 15 in the open-access journal PLoS Computational Biology.
Sheep in human clothing - scientists reveal our flock mentality
Have you ever arrived somewhere and wondered how you got there? Scientists at the University of Leeds believe they may have found the answer, with research that shows that humans flock like sheep and birds, subconsciously following a minority of individuals.
The beauty bias: can people love the one they are compatible with?
Physical attractiveness is important in choosing whom to date. Good looking people are not only popular targets for romantic pursuits, they themselves also tend to flock together with more attractive others. Does this mean then that more attractive versus less attractive people wear a different pair of lens when evaluating others' attractiveness?
Artificial sweeteners linked to weight gain
Want to lose weight? It might help to pour that diet soda down the drain. Researchers have laboratory evidence that the widespread use of no-calorie sweeteners may actually make it harder for people to control their intake and body weight.
A sense of scarcity: why it seems like all the good ones are taken
Singles' bars, classified personals and dating websites are a reflection, not only of the common human desire to find a mate, but of the sense of scarcity that seems to surround the hunt. Many people participate in dating activities in the hopes of finding that special someone, yet feel as though it is an impossible task. However, thanks to an international team of psychologists, the solution may be closer than we think within ourselves, to be exact.
Pupil dilation marks decision making
The eyes may be the windows to the soul, but the simple pupil--the circular opening at the center of the eye that contracts and dilates to regulate the amount of light the eye receives--offers a remarkable portal to the inner workings of the brain. Such is the conclusion of neurobiologist Christof Koch of the California Institute of Technology and his colleagues, who have found that changes in pupil diameter correspond to the moment when a simple decision is made.
Berkeley lab scientists find evidence of link between outdoor ozone and building-related health symptoms
A team of researchers at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) has found evidence that the prevalence of building-related symptoms (BRS) increases with increasing outdoor concentrations of the pollutant ozone. They have also discovered that the type of air filter that some buildings use in their ventilation systems may also play a role in the prevalence of BRS.
Identical twins not as identical as believed
Contrary to our previous beliefs, identical twins are not genetically identical. This surprising finding is presented by American, Swedish, and Dutch scientists in a study being published in the prestigious journal American Journal of Human Genetics. The finding may be of great significance for research on hereditary diseases and for the development of new diagnostic methods.
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Scientist postulates 4 aspects of 'humaniqueness' differentiating human and animal cognition
Shedding new light on the great cognitive rift between humans and animals, a Harvard University scientist has synthesized four key differences in human and animal cognition into a hypothesis on what exactly differentiates human and animal thought.
Whose voice is that?
For vocal animals, recognising species-specific vocalizations is important for survival and social interactions. In humans, a 'voice' region has been identified that is sensitive to human voices and vocalizations.
No easy answers in evolution of human language
The evolution of human speech was far more complex than is implied by some recent attempts to link it to a specific gene, says Robert Berwick, professor of computational linguistics at MIT.
Mit creates gecko-inspired bandage
MIT researchers and colleagues have created a waterproof adhesive bandage inspired by gecko lizards that may soon join sutures and staples as a basic operating room tool for patching up surgical wounds or internal injuries.
Cocaine's effects on brain metabolism may contribute to abuse
Many studies on cocaine addiction - and attempts to block its addictiveness - have focused on dopamine transporters, proteins that reabsorb the brain's "reward" chemical once its signal is sent. Since cocaine blocks dopamine transporters from doing their recycling job, it leaves the feel-good chemical around to keep sending the pleasure signal. Now a new study conducted at the U.S. Department of Energy's Brookhaven National Laboratory suggests that cocaine's effects go beyond the dopamine system. In the study, cocaine had significant effects on brain metabolism, even in mice that lack the gene for dopamine transporters.
Advertisers, neuroscientists trace source of emotions in brain
First came direct marketing, then focus groups. Now, advertisers, with the help of neuroscientists, are closing in on the holy grail: mind reading.
Researchers show leaky muscle cells lead to fatigue
What do marathoners and heart failure patients have in common? More than you think according to new findings by physiologists at Columbia University Medical Center.
Chimp and human communication trace to same brain region
An area of the brain involved in the planning and production of spoken and signed language in humans plays a similar role in chimpanzee communication, researchers report online on February 28th in the journal Current Biology, a publication of Cell Press.
Electronic structure of DNA revealed for 1st time
Utilizing a technique that combines low temperature measurements and theoretical calculations, Hebrew University of Jerusalem scientists and others have revealed for the first time the electronic structure of single DNA molecules.
Scientists make first map of emerging disease hot spots
A new study provides the first scientific evidence that deadly emerging diseases have increased steeply and maps the outbreaks' main geographic and host sources. The researchers say that although historically a majority of new infectious diseases emerged in wealthy countries, the future risks are high in many poor areas. The study appears in the Feb. 21 issue of Nature.
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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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