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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">人的大脑能上传到云端吗？ </h1> <p class="xg1"> 时间：2016-3-22 14:48<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1718)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=4209&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>如果要将人的大脑上传到云端或服务器，到底可不可能呢？</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div style="text-align: center;"><br></div><div style="text-align: center;"><p><a href="data/attachment/portal/201603/22/144539x8cgwwaag13qg2wd.jpg" target="_blank"><img src="data/attachment/portal/201603/22/144539x8cgwwaag13qg2wd.jpg"></a></p><p><br></p></div>如果要将人的大脑上传到云端或服务器，到底可不可能呢？<div><br><div><div>假设我们已经解决了<a href="http://sensor.oecr.com" target="_blank" class="relatedlink">传感</a>器和肌肉以及所有其他的问题，并且接受已经上传的大脑将不会真实的反应我们的思想。那么问题来了：上传我们的大脑。但是大脑到底是什么呢？这个词大多数时候指的是大脑皮层，可能还有一些大脑皮层下结构，包括杏仁核，海马体以及基底神经节。但是中枢神经系统实际上还包括其他一些不那么重要的结构，例如小脑，丘脑，下丘脑，延髓及脑干。</div><div><br></div><div>如果我们考虑整个中枢神经系统，那么我们要面对的就是平均约860亿个神经元，而它们中的每一个大约与10000个其他神经元“相互交流”，这样总的连接数就接近8600亿。这是一个巨大的天文数字。所以我们到底要将什么上传到计算机里呢？每一个神经元的种类，大小以及几何结构吗？它当下的膜电势？轴突的大小和位置以及髓鞘化状态？树突树的完全几何结构？或者不同离子泵的位置？还有不同神经递质的数量，位置，和状态？这些中的任意一种都可能是至关重要的，只要有一点出现错误，那么，所有<a href="http://display.oecr.com" target="_blank" class="relatedlink">显示</a>的结果就会和我们的大脑显示的情况完全不一样，而且目前最先进的计算机模型，也只能将少数几个神经元模拟在内。这一问题的关键是，我们不知道到底是什么决定了我们是谁，我们不知道我们大脑里的那个结构决定了那个自我意识的产生，从目前我们看到的需要上传的信息量来讲，我们就做不到。</div><div><br></div><div>退一步来说——也只有我们有合适的工具来一次性记录上述提到的所有这些参数的情况下——我们能尝试移植任何东西。然而，一个神经元就可能就会需要大约成千 上万条信息来描述。如果你仅仅考虑神经元的数量，这个数就已经达到zetta域（供参考，顺序是 kilo，mega，giga，tera，peta，exa以及zetta每往右增大一步需要乘以1000或1024）。这个数量过于巨大，以至于现今的计算机科学不能将其作为一个整体来操作。至今为止我们还仅仅在讨论大脑的容量，我们同时也需要保证这个模型能够实时运转，因为没有人会 乐意接受一个转得比人脑还慢的<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>大脑。纯粹从技术角度来看，我们远远（真的远远）还达不到将大脑电子化的水平。</div><div><br></div><div>更让人难以接受的是，研究发现摩尔定律（Moore’s Law）——该定律指出计算机性能每18个月就会倍增——即将达到极限，也就是说我们可能永远也达不到所需的技术水平。人类脑计划预见到了这一问题，并且一开始就计划好了只用简化的神经元和突触模型。如果你对更精确的模型感兴趣，可以看一看智能蠕虫计划（OpenWorm），但这一计划也只停留在模拟少数几个神经元的水平。</div><div><br></div><div>我们的计算机科学是处于一个什么水准吧？对比我们的大脑来说，我们的计算机科学还是婴儿中的婴儿，所以如何将自己的大脑上传到计算机中的这件事情，我想我们在有生之年都不用去考虑了，没有人知道这种将人的大脑上传到计算机的问题该如何解决，至少，目前的科学水平，我们还没办法理解，上传大脑到底是怎么一回事。</div><div style="text-align: center;"><p><a href="data/attachment/portal/201603/22/144355ju1umommnnj4xk8j.jpg" target="_blank"><img src="data/attachment/portal/201603/22/144355ju1umommnnj4xk8j.jpg"></a></p><p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;font-size:10.5000pt;mso-font-kerning:0.0000pt;">欢迎关注光电<a href="http://news.oecr.com" target="_blank" class="relatedlink">资讯</a>微信公众号，每天将由光电工程师<a href="http://club.oecr.com" target="_blank" class="relatedlink">社区</a>网站(oecr.com)编辑团队为您精选行业动态，科技资讯，技术解析，光电<a 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