Electrocorticography-based brain computer interface - The Seattle experience
Electrocorticography-based brain computer interface - The Seattle experience
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DOI：
10.1109/tnsre.2006.875536
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发表时间：
2006-06-01
影响因子：
4.9
通讯作者：
Ojemann, Jeffrey G.
中科院分区：
文献类型：
--
作者：
Leuthardt, Eric C.;Miller, Kai J.;Ojemann, Jeffrey G.
皮层电图（ECoG）已被证明是一种有效的模式，作为一个平台，脑-机接口（BCI）。通过我们对10名受试者的经验，我们进一步证明了证据，以支持该信号用于BCI使用的能力和灵活性。在四名患者的一个子集中，尝试了闭环BCI实验，患者接受在线反馈，包括由ECoG功能控制的一维光标移动，这些功能与各种真实的和想象的运动和言语任务相关。所有四个都实现了控制，最终目标精度在73%-100%之间。我们评估实现控制的方法和方式，其中提高在线控制可以通过重新筛选在线任务。此外，我们根据其临床限制评估当前实验范式的相关问题。
Electrocorticography (ECoG) has been demonstrated to be an effective modality as a platform for brain-computer interfaces (BCIs). Through our experience with ten subjects, we further demonstrate evidence to support the power and flexibility of this signal for BCI usage. In a subset of four patients, closed-loop BCI experiments were attempted with the patient receiving online feedback that consisted of one-dimensional cursor movement controlled by ECoG features that had shown correlation with various real and imagined motor and speech tasks. All four achieved control, with final target accuracies between 73%-100%. We assess the methods for achieving control and the manner in which enhancing online control can be accomplished by rescreening during online tasks. Additionally, we assess the relevant issues of the current experimental paradigm in light of their clinical constraints.