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Demonstration of a stable chronic electrocorticography-based brain-computer interface using a deep brain stimulator

机译:使用深层脑刺激器演示稳定的基于慢性皮质电图的脑机接口

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Chronic electrocorticography (ECoG) studies will be necessary to understand how end-users of assistive brain-computer interface (BCI) technologies will control their devices on a long-term scale. A BCI platform consisting of a deep brain stimulator (DBS) and a cortical electrode strip, theoretically suitable for use over multi-year periods, is validated in a single human subject with essential tremor (ET). At the time of this writing, stable ECoG recordings have been demonstrated for four months after implantation. Additionally, the patient has performed a BCI cursor-control task with better-than-chance accuracy using both (1) an overt movement control scheme and (2) a motor imagery control scheme. These results validate the sensing-enabled DBS with cortical strip system as an exciting platform for chronic ECoG BCI experiments and as a scientific tool for long-term cortical recordings in different patient populations.
机译:慢性脑电图(ECoG)研究对于了解辅助脑机接口(BCI)技术的最终用户将如何长期控制其设备非常必要。一个BCI平台由一个深脑刺激器(DBS)和一个皮质电极条组成,理论上适用于多年期,已在患有原发性震颤(ET)的单个人类受试者中得到验证。在撰写本文时,已证明植入后四个月内稳定的ECoG记录。另外,患者使用(1)明显的运动控制方案和(2)电机图像控制方案,以优于偶然的精度执行了BCI光标控制任务。这些结果验证了具有皮质条带系统的具有传感功能的DBS是长期ECoG BCI实验的令人兴奋的平台,并且是不同患者人群中长期皮质记录的科学工具。

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