科普專欄–薯不揀單 - 三十秒科學–利用腦電波書寫英文字

書寫文字，無疑必需依靠腦部的幫助才能完成。431Please respect copyright.ＰＥＮＡＮＡKsF7QMkiwA
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最近有研究順利單憑量度大腦神經的變化，將一名因脊髓受傷而導致手部無法書寫的人士其腦中所想的文字，確確實實地轉化成為實體的螢幕文字，「書寫」速度更高達每分鐘90英文字母!431Please respect copyright.ＰＥＮＡＮＡsDYAM0aX4g
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亦即是說，整個過程他只想在腦裡默默想著那英文字母，電腦便會剖釋其腦部的變化，為他打在螢幕上打出文字。431Please respect copyright.ＰＥＮＡＮＡaETp6jd8oM
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(圖2)電腦首先指令病人在腦海裡思想著利用手部書寫英文字母(如圖中所示)，思索每個英文字母的時候均有間隔，好讓電腦能清楚每一個英文字母所導致的大腦神經變動。431Please respect copyright.ＰＥＮＡＮＡGBtYgye4M9
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經一系列的分析後，科學家將大腦神經的變動組合成3個組件(PC1, PC2, PC3)，而每一個英文字母在3個組件上所導致的變動均是獨特的，圖中所顯示的分別為d、e、m431Please respect copyright.ＰＥＮＡＮＡmADZq74kIH
三個英文字母的神經變動。431Please respect copyright.ＰＥＮＡＮＡRotJaVN34c
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(圖3)若將每一個英文字母甚至標點符號的神經訊息分類，可以得出每個符號均有其獨特的訊號組合。431Please respect copyright.ＰＥＮＡＮＡuLwUdgISdG
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當使用者思索著英文詞語後，電腦分析其神經訊息轉變，再透過電腦程式判斷訊息是為甚麼英文字母，從螢幕中顯示出來。431Please respect copyright.ＰＥＮＡＮＡUkqvrq2Otk
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如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。431Please respect copyright.ＰＥＮＡＮＡJuLDveOd3w
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc431Please respect copyright.ＰＥＮＡＮＡXOI0pG1LMG
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。431Please respect copyright.ＰＥＮＡＮＡA7e8z9LzMe
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https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio431Please respect copyright.ＰＥＮＡＮＡ9q7aHfs2TW
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除非Facebook及IG重開侵侵的account，否則我的IG將不會再作更新，只會寄居本土LIHKG及Penana。431Please respect copyright.ＰＥＮＡＮＡZghCI2aK31
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Ref1:https://www.nature.com/articles/s41586-021-03506-2431Please respect copyright.ＰＥＮＡＮＡDLIut3niid

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