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Wednesday, October 29, 2008

Astronauts To Vote From Space

Commander Mike Fincke (right) and Flight Engineer Greg Chamitoff send a special message from the International Space Station urging all Americans to vote. Credit: NASA TV
Commander Mike Fincke (right) and Flight Engineer Greg Chamitoff send a special message from the International Space Station urging all Americans to vote. Credit: NASA TV

Commander Edward Michael Fincke and Flight Engineer and Science Officer Greg Chamitoff are living and working onboard the International Space Station. Though they are 220 miles above Earth and orbiting at 17,500 miles per hour, they will still be able to participate in the upcoming election. A 1997 bill passed by Texas legislators sets up a technical procedure for astronauts -- nearly all of whom live in Houston -- to vote from space.

A secure electronic ballot, generated by the Harris and Brazoria County Clerk's office, is uplinked by NASA's Johnson Space Center Mission Control Center. An e-mail with crew member-specific credentials is sent from the County Clerk to the crew member. These credentials allow the crew member to access the secure ballot.

The astronauts will cast their votes and a secure completed ballot is downlinked and delivered back to the County Clerk’s Office by e-mail to be officially recorded.

Provided by NASA

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Brain has thin line between love and hate, scientists reveal

By Daily Mail Reporter

There really is a thin line between love and hate - at least in the brain, scientists have shown.

A new study reveals that the brain's "love" and "hate" circuits share identical structures.

Both include regions known as the putamen and insula which are linked to aggression and distress.

thin

Thin line: Hate can also be an all-consuming passion, just like love, explaining why some couples can swing between the two emotions, like Madonna and Guy Ritchie


Professor Semir Zeki, who carried out the brain scan study at University College London, said: "Hate is often considered to be an evil passion that should, in a better world, be tamed, controlled, and eradicated.

"Yet to the biologist, hate is a passion that is of equal interest to love.

"Like love, it is often seemingly irrational and can lead individuals to heroic and evil deeds. How can two opposite sentiments lead to the same behaviour?"

In an attempt to find out, Prof Zeki's team scanned 17 male and female volunteers while they looked at pictures of individuals they hated, as well as familiar "neutral" faces.

Viewing a hated person activated distinct areas of the brain described by the scientists as the "hate circuit".

Previously, the same team had carried out a similar study of people shown pictures of their romantic partners.

The "hate circuit" was found to include structures important for generating aggressive behaviour, and translating angry thought into action.

It also involved a part of the frontal cortex critical to predicting the actions of others.

The putamen and insula are two distinct structures in the sub-cortex, which lies behind the cerebral cortex, or "thinking" region.

Earlier work has implicated the putamen in the perception of contempt and disgust and it may also be part of the motor system that is mobilised to take action. The insula controls the brain's distress response.

Prof Zeki said: "Significantly, the putamen and insula are also both activated by romantic love. This is not surprising. The putamen could also be involved in the preparation of aggressive acts in a romantic context, as in situations when a rival presents a danger.

"Previous studies have suggested that the insula may be involved in responses to distressing stimuli, and the viewing of both a loved and a hated face may constitute such a distressing signal.

"A marked difference in the cortical pattern produced by these two sentiments of love and hate is that, whereas with love large parts of the cerebral cortex associated with judgment and reasoning become de-activated, with hate only a small zone, located in the frontal cortex, becomes de-activated.

"This may seem surprising since hate can also be an all-consuming passion, just like love. But whereas in romantic love, the lover is often less critical and judgmental regarding the loved person, it is more likely that in the context of hate the hater may want to exercise judgment in calculating moves to harm, injure or otherwise extract revenge."

The activity of some of the structures varied according to how much "hate" a volunteer said he or she felt.

A state of hate could therefore be objectively quantified, said Prof Zeki, whose research is reported in the online journal PLoS One.

He added: "This finding may have legal implications in criminal cases, for example."

There remains one big difference between love and hate. While romantic love is directed at just one person, hate can target numbers of individuals or groups defined by their race, gender, social or cultural background or political beliefs.

Prof Zeki now plans to investigate these different varieties of hate.

Original here

Phony Friends? Rejected People Better Able To Spot Fake Smiles


Individuals who are experiencing rejection are better at picking up subtle social cues. Socially rejected people are particularly good at discerning fake smiles from real ones. (Credit: iStockphoto/Dori OConnell)

“There are hundreds of languages in the world, but a smile speaks them all.” It’s true too—next time you are lost in a foreign country, just flash a smile and the locals will be happy to help you find your way. An honest smile can convey a wide range of meanings, from being happy to having fun. Although, not all smiles are genuine. All of us have “faked a smile” at some point.

Now, a new study might make us think twice about sending out a phony grin. It has been shown that individuals who are experiencing rejection are better at picking up subtle social cues and according to a recent study published in the October issue of Psychological Science, a journal of the Association for Psychological Science, socially rejected people are particularly good at discerning fake smiles from real ones.

Psychologist Michael J. Bernstein and his colleagues from Miami University wanted to see to what extent rejected individuals would be able to identify the authenticity of a facial expression. The researchers induced feelings of social rejection in a group of the participants by making them think about a time when they felt socially isolated. Conversely, another group of participants were asked to recall times they felt accepted or included in a group.

A control group of participants were asked to recall the previous morning’s activities (resulting in neutral feelings). The participants then viewed videos of people smiling—some of the videos showed people expressing genuine smiles and the rest depicted people with fake smiles. Participants were to indicate which of the videos contained real smiles.

The results show that socially rejected individuals are better at distinguishing fake smiles from real smiles compared to individuals who feel socially accepted or who were in the control group. The authors propose that socially rejected people have an increased motivation to be accepted, thus making them more sensitive to specific social cues indicating opportunities for inclusion. The authors conclude, “It seems essential to detect legitimate signs of positivity that indicate possible reaffiliation with other people. Otherwise, rejected individuals could miss out on new chances for acceptance or ‘waste’ affiliation efforts on people who are not receptive.”

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