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cocaine
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5-12-2008 3:10 PM
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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/4ece9aa5-ec0b-4e63-9c9d-7060014c12ef/F25356CB-5FB5-45A1-93D0-67671AE58611/" 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.pbs.org/wnet/closetohome/science/html/similar.html" href="http://www.pbs.org/wnet/closetohome/science/html/similar.html" style="font-size: 11px;">www.pbs.org</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.pbs.org/wnet/closetohome/science/html/similar.html"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/www.pbs.org/img/ED84AEC6-70C8-46F7-A56A-1BA6689FD389" alt="" /></div></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.pbs.org/wnet/closetohome/science/html/similar.html"><table background="undefined" bgcolor="#330099"><tr><TD width="164" height="202"><P><B><FONT color="#99ff00">ANIMATION:<BR /></FONT></B><FONT color="#99ff00">Areas of the brain of a cocaine user "light up" in PET scans as the drug acts on it.</FONT></P></TD></tr></table></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.pbs.org/wnet/closetohome/science/html/similar.html"><P><FONT size="+3">S</FONT>cientists now think that all drugs of abuse directly or indirectly affect the so-called "reward pathway," a linked set of areas deep in the brain. All these drugs converge on the same brain regions, masquerading as natural chemicals -- including dopamine, a neurotransmitter involved in the experience of pleasure -- in those reward circuits.</P></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.pbs.org/wnet/closetohome/science/html/similar.html"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/www.pbs.org/img/BBDEE23B-9921-45A1-BED3-D59A296973E0" alt="The reward path of the brain" /></div></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.pbs.org/wnet/closetohome/science/html/similar.html"><FONT size="-1">The "reward pathway" in the brain that is activated by natural rewards and by artificial rewards such as addictive drugs.</FONT></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;"> </td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/F25356CB-5FB5-45A1-93D0-67671AE58611/blog/" title="blog or email this clip"><img src="http://content8.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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