<story><title>Brain implant translates paralyzed man&apos;s thoughts into text with 94% accuracy</title><url>https://www.sciencealert.com/brain-implant-enables-paralyzed-man-to-communicate-thoughts-via-imaginary-handwriting</url></story><parent_chain><item><author>GOONIMMUNE</author><text>&amp;gt; In tests, the man was able to achieve writing speeds of 90 characters per minute (about 18 words per minute), with approximately 94 percent accuracy (and up to 99 percent accuracy with autocorrect enabled).&lt;p&gt;I&amp;#x27;d be interested in knowing how this metric changes over time as the user gains more experience with the BCI device. The article mentions that researchers recorded his neural activity while he was thinking about writing letters. Would the man eventually find that the system is more accurate or faster when he instead learns how to think &amp;quot;the thought that generates the letter A in my BCI device&amp;quot;? Fascinating stuff all around.</text></item></parent_chain><comment><author>0xFreebie</author><text>Long ago, the accuracy would decline as scar tissue formed around implanted electrodes.  Not sure if that&amp;#x27;s changed in recent years as techniques improved.</text></comment>
<story><title>Brain implant translates paralyzed man&apos;s thoughts into text with 94% accuracy</title><url>https://www.sciencealert.com/brain-implant-enables-paralyzed-man-to-communicate-thoughts-via-imaginary-handwriting</url></story><parent_chain><item><author>GOONIMMUNE</author><text>&amp;gt; In tests, the man was able to achieve writing speeds of 90 characters per minute (about 18 words per minute), with approximately 94 percent accuracy (and up to 99 percent accuracy with autocorrect enabled).&lt;p&gt;I&amp;#x27;d be interested in knowing how this metric changes over time as the user gains more experience with the BCI device. The article mentions that researchers recorded his neural activity while he was thinking about writing letters. Would the man eventually find that the system is more accurate or faster when he instead learns how to think &amp;quot;the thought that generates the letter A in my BCI device&amp;quot;? Fascinating stuff all around.</text></item></parent_chain><comment><author>striking</author><text>The article mentions that&lt;p&gt;&amp;gt; electrodes implanted in his motor cortex recorded signals of his brain activity&lt;p&gt;so I&amp;#x27;m assuming other thoughts and interactions had little to no effect.</text></comment>