REWIRING NEUROSCIENCE


	REWIRING NEUROSCIENCE

wildcat

11-18-2007 5:30 AM

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tags:

neurology, blogs, science, brain, memory

wildcat says:

much to read and learn:"No theory that attempts to explain how the nervous system works has ever broken past the problem of slow conduction. Von Helmholtz happened to measure a slow nerve – fast ones can conduct an impulse at 265 mph. But this is not, obviously, the speed of light.

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11-18-2007 8:36 AM

debbyski

Where is my excedrin?

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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://www.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/4dfdae61-94da-4340-bc95-194f2baff344/05406603-783A-4C40-8567-76819DBEC75A/" 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://nine-radical.blogspot.com/2006/11/preview-of-blog-in-early-1990s-our.html" href="http://nine-radical.blogspot.com/2006/11/preview-of-blog-in-early-1990s-our.html" style="font-size: 11px;">nine-radical.blogspot.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://nine-radical.blogspot.com/2006/11/preview-of-blog-in-early-1990s-our.html"><P id="description">This blog explores the impact of a "smarter" neuron on vision, human memory and the brain.  It argues that this hypothetical neuron is precisely the neuron we already have.</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://nine-radical.blogspot.com/2006/11/preview-of-blog-in-early-1990s-our.html"><DIV>In the early 1990s, our long accepted (cc 1926) understanding of how a nerve encodes and conveys information was unexpectedly overturned by experiments on fast flying bats and insects. Around 1995, we began to realize we no longer knew what neurons actually do.</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://nine-radical.blogspot.com/2006/11/preview-of-blog-in-early-1990s-our.html"><DIV>In the years since, many competing hypotheses have been advanced, suggesting various alternate neural encoding schemes. But the question of how a nerve communicates remains unanswered. It is a huge, gaping hole, at the most basic level, in our understanding of how the nervous system works.</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://nine-radical.blogspot.com/2006/11/preview-of-blog-in-early-1990s-our.html"><DIV>The theoretical payoff is enormous. Suddenly the brain, which operates on impulses moving at velocities barely better than highway speeds – becomes in theory a dazzlingly fast and competent thinking machine. Which is, of course, exactly what the brain is in real life.</DIV></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/05406603-783A-4C40-8567-76819DBEC75A/blog/" title="blog or email this clip"><img src="http://content6.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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