IBM 模拟了 4.5% 的人脑和整个猫脑

2011年11月《图像科学》特刊的在线增刊

加入我们的科学爱好者社区!

超级计算机可以存储比人脑更多的信息,并且可以更快地计算单个方程式,但即使是世界上最大、最快的超级计算机也无法匹敌大脑的整体处理能力。而且它们远不如紧凑或节能

尽管如此,IBM 正在尝试用其尖端的超级计算机 Blue Gene 模拟人脑。 为了进行模拟,它使用了 147,456 个处理器并行工作。 IBM 研究人员表示,每个处理器大致相当于个人电脑中的处理器,具有 1 GB 的工作内存。

通过这样的配置,Blue Gene 模拟了大脑 4.5% 的神经元以及它们之间的连接,称为突触——大约是 10 亿个神经元和 10 万亿个突触。 总的来说,大脑大约有 200 亿个神经元和 200 万亿个突触。


支持科学新闻报道

如果您喜欢这篇文章,请考虑通过以下方式支持我们屡获殊荣的新闻报道 订阅。 通过购买订阅,您正在帮助确保有关塑造我们当今世界的发现和想法的具有影响力的故事的未来。


IBM 在一份有趣的论文(pdf)中描述了这项工作,该论文比较了其位于加利福尼亚州阿尔马登的认知计算研究小组进行的各种动物模拟。 该小组已成功地完全模拟了小鼠(512 个处理器)、大鼠(2,048 个处理器)和猫(24,576 个处理器)的大脑。 为了与您大脑皮层匹敌,IBM 预测它将需要连接 880,000 个处理器,它希望在 2019 年实现这一目标。

阅读更多关于计算机与大脑的信息,请参阅 大众科学 2011 年 11 月刊

Mark Fischetti has been a senior editor at 大众科学 for 17 years and has covered sustainability issues, including climate, weather, environment, energy, food, water, biodiversity, population, and more. He assigns and edits feature articles, commentaries and news by journalists and scientists and also writes in those formats. He edits History, the magazine's department looking at science advances throughout time. He was founding managing editor of two spinoff magazines: 大众科学 Mind and 大众科学 Earth 3.0. His 2001 freelance article for the magazine, "Drowning New Orleans," predicted the widespread disaster that a storm like Hurricane Katrina would impose on the city. His video What Happens to Your Body after You Die?, has more than 12 million views on YouTube. Fischetti has written freelance articles for the New York Times, Sports Illustrated, Smithsonian, Technology Review, Fast Company, and many others. He co-authored the book Weaving the Web with Tim Berners-Lee, inventor of the World Wide Web, which tells the real story of how the Web was created. He also co-authored The New Killer Diseases with microbiologist Elinor Levy. Fischetti is a former managing editor of IEEE Spectrum Magazine and of Family Business Magazine. He has a physics degree and has twice served as the Attaway Fellow in Civic Culture at Centenary College of Louisiana, which awarded him an honorary doctorate. In 2021 he received the American Geophysical Union's Robert C. Cowen Award for Sustained Achievement in Science Journalism, which celebrates a career of outstanding reporting on the Earth and space sciences. He has appeared on NBC's Meet the Press, CNN, the History Channel, NPR News and many news radio stations. Follow Fischetti on X (formerly Twitter) @markfischetti

More by Mark Fischetti
© . All rights reserved.