ScienceDaily: Most Popular News

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• Researchers discover how brain regions work together, or alone
• Nature can, selectively, buffer human-caused global warming, say scientists
• New links found between sleep duration, depression
• Autistic brains create more information at rest, study show
• Making color: When two red photons make a blue photon
• How neurons control fine motor behavior of the arm
• Third-hand smoke just as deadly as first-hand smoke, study finds
• Revealing how the brain recognizes speech sounds
• Large, deep magma chamber discovered below Kilauea volcano: Largely unknown internal plumbing of volcanoes
• Computing with silicon neurons: Scientists use artificial nerve cells to classify different types of data

Researchers discover how brain regions work together, or alone Posted: 02 Feb 2014 10:23 AM PST Various regions of the brain often work independently. But what happens when two regions must cooperate to accomplish a task? What mechanism allows them to communicate in order to cooperate, yet avoid interfering with one another when they work alone? Scientists reveal a previously unknown process that helps two brain regions cooperate when joint action is required.

Nature can, selectively, buffer human-caused global warming, say scientists Posted: 02 Feb 2014 08:10 AM PST Can naturally occurring processes selectively buffer the full brunt of global warming caused by greenhouse gas emissions resulting from human activities? Yes, says a group of researchers in a new study.

New links found between sleep duration, depression Posted: 31 Jan 2014 08:08 PM PST A genetic study of adult twins and a community-based study of adolescents both report novel links between sleep duration and depression. A study of 1,788 twins is the first to demonstrate a gene by environment interaction between self-reported habitual sleep duration and depressive symptoms. Another study of 4,175 individuals between 11 and 17 years of age is the first to document reciprocal effects for major depression and short sleep duration among adolescents using prospective data.

Autistic brains create more information at rest, study show Posted: 31 Jan 2014 10:06 AM PST New research finds that the brains of autistic children generate more information at rest -- a 42 percent increase on average. The study offers a scientific explanation for the most typical characteristic of autism -- withdrawal into one's own inner world. The excess production of information may explain a child's detachment from their environment.

Making color: When two red photons make a blue photon Posted: 31 Jan 2014 10:05 AM PST Can scientists generate any color of light? The answer is not really, but the invention of the laser in 1960 opened new doors for this endeavor. Scientists have now demonstrated a new semiconductor microstructure that performs frequency conversion. This design is a factor of 1000 smaller than previous devices.

How neurons control fine motor behavior of the arm Posted: 31 Jan 2014 07:12 AM PST Motor commands issued by the brain to activate arm muscles take two different routes. As a research group has now discovered, many neurons in the spinal cord send their instructions not only towards the musculature, but at the same time also back to the brain via an exquisitely organized network.

Third-hand smoke just as deadly as first-hand smoke, study finds Posted: 30 Jan 2014 04:04 PM PST Do not smoke and do not allow yourself to be exposed to smoke because second-hand smoke and third-hand smoke are just as deadly as first-hand smoke, say scientists who conducted the first animal study of the effects of third-hand smoke.

Revealing how the brain recognizes speech sounds Posted: 30 Jan 2014 11:13 AM PST Researchers are reporting a detailed account of how speech sounds are identified by the human brain. The finding, they said, may add to our understanding of language disorders, including dyslexia.

Large, deep magma chamber discovered below Kilauea volcano: Largely unknown internal plumbing of volcanoes Posted: 29 Jan 2014 08:49 AM PST A new study has uncovered a previously unknown magma chamber deep below the most active volcano in the world -- Kilauea. This is the first geophysical observation that large magma chambers exist in the deeper parts of the volcano system.

Computing with silicon neurons: Scientists use artificial nerve cells to classify different types of data Posted: 28 Jan 2014 06:45 AM PST Scientists in Germany are using artificial nerve cells to classify different types of data. These silicon 'neurons' could recognize handwritten numbers, or distinguish plant species based on their flowers.

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