IBM 模擬了 4.5% 的人腦和整個貓腦

2011年11月《影像科學》特刊的線上增刊

加入我們的科學愛好者社群!

超級計算機可以儲存比人腦更多的資訊,並且可以更快地計算單個方程式,但即使是世界上最大、最快的超級計算機也無法匹敵大腦的整體處理能力。而且它們遠不如緊湊或節能

儘管如此,IBM 正在嘗試用其尖端的超級計算機 Blue Gene 模擬人腦。 為了進行模擬,它使用了 147,456 個處理器並行工作。 IBM 研究人員表示,每個處理器大致相當於個人電腦中的處理器,具有 1 GB 的工作記憶體。

透過這樣的配置,Blue Gene 模擬了大腦 4.5% 的神經元以及它們之間的連線,稱為突觸——大約是 10 億個神經元和 10 萬億個突觸。 總的來說,大腦大約有 200 億個神經元和 200 萬億個突觸。


支援科學新聞報道

如果您喜歡這篇文章,請考慮透過以下方式支援我們屢獲殊榮的新聞報道 訂閱。 透過購買訂閱,您正在幫助確保有關塑造我們當今世界的發現和想法的具有影響力的故事的未來。


IBM 在一份有趣的論文(pdf)中描述了這項工作,該論文比較了其位於加利福尼亞州阿爾馬登的認知計算研究小組進行的各種動物模擬。 該小組已成功地完全模擬了小鼠(512 個處理器)、大鼠(2,048 個處理器)和貓(24,576 個處理器)的大腦。 為了與您大腦皮層匹敵,IBM 預測它將需要連線 880,000 個處理器,它希望在 2019 年實現這一目標。

閱讀更多關於計算機與大腦的資訊,請參閱 大眾科學 2011 年 11 月刊

Mark Fischetti has been a senior editor at 大眾科學 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: 大眾科學 Mind and 大眾科學 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
© .