Behavioral Science: New brain connections form in clusters during learning

New connections between brain cells emerge in clusters in the brain as animals learn to perform a new task, according to a study published in Nature on February 19 (advance online publication). Led by researchers at the University of California, Santa Cruz, the study reveals details of how brain circuits are rewired    
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Can You Smell It?

can-you-smell-itWhat makes one smell pleasant and another odious? Is there something in the chemistry of a substance that can serve to predict how we will perceive its smell? Scientists at the Weizmann Institute of Science and the University of California at Berkeley have now discovered that there is, indeed, such a link, and knowing the molecular structure of a substance can help predict whether we will find its smell heavenly or malodorous.

In sight and hearing, for instance, our perceptions are determined by the physical properties of waves – the length of light waves in sight, and the frequency    ... Read Full Article

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Research suggests America may over-vaccinate

research-suggests-america-may-over-vaccinateA new study published in the New England Journal of Medicine this week by Oregon Health & Science University researchers suggests that timelines for vaccinating and revaccinating Americans against disease should possibly be reevaluated and adjusted.

The study shows that in many cases, the established duration of protective immunity for many vaccines is greatly underestimated. This means    Read Full Article

Damping the odds that fireworks will spark seizures

damping-the-odds-that-fireworks-will-spark-seizuresBright light that flickers frequently or rapidly, like a strobe light, can trigger seizures in some people – a phenomenon documented in nearly 700 children who were hospitalized in Japan 10 years ago after watching a Pokemon cartoon. The condition is much on the mind of a neurologist specializing in seizure disorders as the 4th of July holiday with all its fireworks approaches.

While    Read Full Article

Researchers show evidence of 'memory' in cells and molecules

researchers-show-evidence-ofmemory--in-cells-and-moleculesResearch to be reported October 29 in the journal Proceedings of the National Academy of Sciences (PNAS) provides evidence that some molecular interactions on cell surfaces may have a “memory” that affects their future interactions. The report could lead to a re-examination of results from certain single-molecule research.

Researchers who use sequentially repeated tests to obtain statistical    Read Full Article

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