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Head For Threads - by Megan Byrne

 
The long-held idea that there’s a link between our relationships with each other and our physical health is now being backed by research. Neuroscientists have discovered we have a class of brain cells, mirror neurons, that can track othings like emotional flow, movement and intentions of a person we’re with. These mirror neurons replicate those we sense in others by stirring in our brain the same active areas in the other person. This emotional closeness allows the biology of one person to influence that of another.

The mechanism of these neurons might explain why we can “pick up vibes” from someone else, kind of an emotional contagion. By allowing for rapid synchronization of another’s posture, voice, and movements, the neurons might account for feelings of rapport by allowing for the interpersonal orchestration of shifts in physiology.


It’s also being suggested that the emotional status of our more important relationships will have an impact on cardiovascular and neuro-endocrine activity. This biological view changes the focus from treating one person to extending the treatment to include the interaction between two people.

Mirror neuron study is reinforcing the experience of the biologically-grounded emotional solace felt by seriously ill patients when loved ones visit. The implication here is that a healing presence can relieve emotional suffering. Conversly, the lack of visible human support can have a detrimental effect.

Since no significant data can be claimed yet, the health benefits of these inter-connections are not formally approved by the medical community.
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We Are Not Neanderthal

October 29th 2006 03:27
New discoveries and studies are suggesting that Neanderthals and humans had a common ancestor, but it was about 400,000 years ago. This indicates that the hairy Eurasian hunters had an early genetic split from modern humans and backs up the idea that the Neanderthal were not Homo sapiens. Scientists in another study, however (see Finlayson study below) believe that humans and Neanderthals shared a common ancestor and overlapped for several thousand years in Europe.

Geneticist James Noonan, of the Lawrence Berkeley National Laboratory, extracted DNA from fossilized Neanderthal bones. His early results indicate very little genetic contribution from Neanderthal to human.


Noonan’s research was presented earlier this month to the American Society of Human Genetics. His study is significant because he analyzed nuclear DNA, rather than mitochondrial DNA. Nuclear DNA analysis is superior to mitrochondrial because the method yields more information, such as how language and cognition are encoded.
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At the Max Planck Institute in Leipzig, Germany, genetic anthropologist, Svante Paabo has extracted and is studying DNA from the bones of a Neanderthal who lived in Croatia about 45,000 years ago.
neanderthal image
A Depiction of the Neanderthal

This analysis, he said, “compliments the study of fossils and the archaeological record of Neanderthal behavior. All this evidence allows us to understand exactly how Neanderthals lived and adapted to a changing world that eventually included our species”.

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In Gorham Cave in Gibraltar, a team from the Gibraltar Museum have found artifacts suggesting the Neanderthals survived as a species 2,000 years longer than previous information indicated; they were probably here until at least 28,000 years ago.

Clive Finlayson, an anthropologist at the Gibraltar leads the team studying artifacts found in the cave. The teams findings were reported on the web site of the journal, Nature.

Finlayson said the oldest deposits in the cave date back to 120,000 years ago and, according to radiocarbon dating results, the Neanderthals visited it repeatedly until at least 28,000 years ago and perhaps as recently as 24,000 years ago.
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The Evolution Of Darwin

October 23rd 2006 05:21
Charles Darwin’s theory of evolution should have included libraries evolving on the Internet because all of his known works are online now at The Complete Works of Charles Darwin Online.
Charles Darwin
Charles Darwin

At Cambridge University, Dr. John van Wyhe, historian, is running the project that’s making roughly 50,000 pages of text and 40,000 images accessible to anyone with an interest in the scientist and his evolution theory.

According to the BBC News, Dr. van Wyhe has devoted the last four years in a globe-wide search for copies of Darwin’s materials. “I write to lots of people all over the world to get hold of the texts for the project and I got a really positive reaction, because they all liked the idea of there being one big collection”.

The library contains reference works, contemporary reviews of Darwin’s books, as well as personal papers. Darwin Online features many previously unpublished and newly transcribed manuscripts, including a microfilm copy of a field notebook from his famous Beagle voyage to the Galapagos Islands, where detailed observations of the wildlife would later forge his scientific arguments. The original field book, still missing, was stolen sometime in the 1980s.

Other texts appearing online for the first time include the first editions of the Journal Of Researches (1839), The Descent Of Man (1871), The Zoology Of The Voyage Of HMS Beagle (1838-43) and the 2nd, 3rd, 4th and 5th editions of the Origin Of Species.

The site contains about 50% of the materials that will be provided by 2009, the 200th anniversary of Darwin’s birth.

Other websites providing uniquely important, complimentary Darwin materials: Darwin Correspondence Project and Darwin Digital Library of Evolution.

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Wapiti Magic

September 27th 2006 02:54
This post might not be too long, because I'm having trouble reading my badly scribbled notes. But I'll do my best to decipher this mess. I'm also making a mental note that it's not necessary to take research notes on scrap paper because my computer has a copy and paste feature.

Yesterday I dressed this blog with probably it's first picture ever, "Wapiti Magic". I distinctly remember saying something to the effect that it was so cool,
Wapiti Magic

[ Click here to read more ]
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