Are You a Liar? Ask Your Brain


	Are You a Liar? Ask Your Brain

Mohir

11-16-2007 4:12 PM

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tags:

brain, mind

1 Comment |

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11-17-2007 6:48 AM

mugofcoffee

Mohir,
why to go into such a trouble of asking your brain?

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/3669b78d-3e46-4cd2-a257-129fdb921083/E08D8842-3B1B-4D08-9642-D92F87F240D6/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.sciam.com/article.cfm?id=lie-brain-fmri-polygraph" href="http://www.sciam.com/article.cfm?id=lie-brain-fmri-polygraph" style="font-size: 11px;">www.sciam.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.sciam.com/article.cfm?id=lie-brain-fmri-polygraph"><H1>Are You a Liar? Ask Your Brain</H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.sciam.com/article.cfm?id=lie-brain-fmri-polygraph"><H2>Researchers use fMRIs to track blood flow in the brain to determine if someone is fibbing</H2></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.sciam.com/article.cfm?id=lie-brain-fmri-polygraph">The mere thought of being interrogated—by a parent, boss or significant other—is enough to make one's blood pressure rise and pulse and breathing rates race. But contrary to popular belief, these signs of <A href="http://www.sciam.com/article.cfm?articleId=494981A6-E7F2-99DF-3817D099193E399F">anxiety</A> are not reliable indicators of a person's honesty. Instead, researchers are looking into the brain to separate liars from truth tellers.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.sciam.com/article.cfm?id=lie-brain-fmri-polygraph"><P>Polygraph, or lie detector, tests are the most well-known method of discerning fact from fiction, but researchers say they are not reliable because they measure <A href="http://podcast.sciam.com/daily/sa_d_podcast_070221.mp3">anxiety</A> based on a subject's pulse or breathing rate, which can easily be misread. "They're not detecting deception but rather the anxiety of being…[accused of deception]," Spence says. "It's known that psychopaths have a reduced level of anxiety," that would allow them to fool a polygraph. The fMRI, he says, images the actual processes involved in deception.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/E08D8842-3B1B-4D08-9642-D92F87F240D6/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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