It seems that the test on the first volunteer was unsuccessful, the person is only referred to as JB.

https://www.voiceofeurope.com/....neuralink-seeks-volu

Neuralink seeks volunteer for groundbreaking brain implant study | Voice of Europe
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Neuralink seeks volunteer for groundbreaking brain implant study | Voice of Europe

Musk's company, Neuralink Corp., is currently searching for a volunteer to participate in its first clinical study. In this study, a willing individual ...