When fish get emotional

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	When fish get emotional

joaoB

7-6-2007 5:26 AM

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tags:

brain, neuroscience, fish

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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/f47c3038-d32e-453a-9288-a80eb6daa356/044CC588-A2AF-438C-910B-A9B141539C16/" 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.newscientist.com/channel/life/mg19526114.200?DCMP=NLC-nletter&nsref=mg19526114.200" href="http://www.newscientist.com/channel/life/mg19526114.200?DCMP=NLC-nletter&nsref=mg19526114.200" style="font-size: 11px;">www.newscientist.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/channel/life/mg19526114.200?DCMP=NLC-nletter&nsref=mg19526114.200">When fish get emotional</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.newscientist.com/channel/life/mg19526114.200?DCMP=NLC-nletter&nsref=mg19526114.200">WHO ever heard of a fish being in two minds about something? Yet it seems that like humans, fish process information - and perhaps emotions - on different sides of the brain.</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.newscientist.com/channel/life/mg19526114.200?DCMP=NLC-nletter&nsref=mg19526114.200">Fish growing up in the wild among predators use their left eye to look at novel objects, while their offspring raised in captivity use the right eye. This suggests that life experiences can affect which side of the brain fish use</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.newscientist.com/channel/life/mg19526114.200?DCMP=NLC-nletter&nsref=mg19526114.200">Humans use their left and right brain lobes differently, the most well-known consequence being <A href="http://www.newscientist.com/article/dn6186-handedness-develops-in-the-womb.html">handedness</A>. </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.newscientist.com/channel/life/mg19526114.200?DCMP=NLC-nletter&nsref=mg19526114.200">Giorgio Vallortigara from the University of Trieste, Italy, who studies lateralisation in vertebrates, says that the left side of the brain directs approach behaviour and the right side withdrawal. Dogs wag their tail to the right when they see a friendly human but to the left when faced with a scary dominant dog, he found (<I>Current Biology,</I> <A target="nsarticle" href="http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VRT-4N97NYR-9&_user=5866809&_coverDate=03%2F20%2F2007&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000053194&_version=1&_urlVersion=0&_userid=5866809&md5=196c1cf820a440d1ff948579cc61cde0">vol 17, p R200</A>). </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/044CC588-A2AF-438C-910B-A9B141539C16/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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