Robotic bugs, influence cockroach society

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	Robotic bugs, influence cockroach society

caissie_tab

11-16-2007 8:06 PM

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robotics

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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/0aefdd6b-5797-4654-9285-dcf6e5af4ac5/F1CC0357-9CEC-44F6-B9D7-E5C04E1E994F/" 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://ca.news.yahoo.com/s/capress/071116/koddities/oddity_robots_roaches" href="http://ca.news.yahoo.com/s/capress/071116/koddities/oddity_robots_roaches" style="font-size: 11px;">ca.news.yahoo.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://ca.news.yahoo.com/s/capress/071116/koddities/oddity_robots_roaches"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/ca.news.yahoo.com/img/55B0958A-89FC-4D12-98FB-C1B538CDA6B7" alt="This undated handout photo provided by the journal Science shows cockroaches and robots interacting for common shelter selection. Tiny robots programmed to act like cockroaches were able to join and participate in cockroach society, according to researchers studying the collective behavior of insects. Cockroaches tend to self-organize into leaderless groups, seeming to reach consensus on where to rest together. (THE ASSOCIATED PRESS/Science)" /></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://ca.news.yahoo.com/s/capress/071116/koddities/oddity_robots_roaches"><P>
WASHINGTON - Tiny robots programmed to act like cockroaches were able to blend into roach society, according to researchers studying the collective behaviour of insects.
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Cockroaches tend to self-organize into leaderless groups, seeming to reach consensus on where to rest together.
</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://ca.news.yahoo.com/s/capress/071116/koddities/oddity_robots_roaches"><P>
For example, when provided two similar shelters, most of the group tended to gather under the same one.
</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://ca.news.yahoo.com/s/capress/071116/koddities/oddity_robots_roaches"><P>
Then, to see if the robots had really become part of society and could influence group decisions, Halloy and colleagues programmed them to prefer shelters with more light.
</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://ca.news.yahoo.com/s/capress/071116/koddities/oddity_robots_roaches"><P>
The result, the lighter shelter was preferred by the mixed group 61 per cent of the time, while the cockroaches alone picked it just 27 per cent of the time.
</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://ca.news.yahoo.com/s/capress/071116/koddities/oddity_robots_roaches"><P>
On the other hand, in 39 per cent of cases the robots, despite being programmed to prefer a lighter shelter, joined the cockroaches under the darker one.
</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://ca.news.yahoo.com/s/capress/071116/koddities/oddity_robots_roaches"><P>
The findings were reported in Friday's issue of the journal Science.
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