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首页> 外文期刊>Clinical EEG and neuroscience: official journal of the EEG and Clinical Neuroscience Society (ENCS) >Evaluating Brain-Computer Interface Performance in an ALS Population: Checkerboard and Color Paradigms
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Evaluating Brain-Computer Interface Performance in an ALS Population: Checkerboard and Color Paradigms

机译：评估ALS种群中的脑电电脑界面性能：棋盘和彩色范式

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摘要

The objective of this study was to investigate the performance of 3 brain-computer interface (BCI) paradigms in an amyotrophic lateral sclerosis (ALS) population (n = 11). Using a repeated-measures design, participants completed 3 BCI conditions: row/column (RCW), checkerboard (CBW), and gray-to-color (CBC). Based on previous studies, it is hypothesized that the CBC and CBW conditions will result in higher accuracy, information transfer rate, waveform amplitude, and user preference over the RCW condition. An offline dynamic stopping simulation will also increase information transfer rate. Higher mean accuracy was observed in the CBC condition (89.7%), followed by the CBW (84.3%) condition, and lowest in the RCW condition (78.7%); however, these differences did not reach statistical significance (P = .062). Eight of the eleven participants preferred the CBC and the remaining three preferred the CBW conditions. The offline dynamic stopping simulation significantly increased information transfer rate (P = .005) and decreased accuracy (P .000). The findings of this study suggest that color stimuli provide a modest improvement in performance and that participants prefer color stimuli over monochromatic stimuli. Given these findings, BCI paradigms that use color stimuli should be considered for individuals who have ALS.
机译：本研究的目的是探讨3脑电脑界面（BCI）范例在肌营养的侧面硬化症（ALS）群体中的3脑界面（BCI）范例的性能（n = 11）。使用重复措施设计，参与者完成了3个BCI条件：行/列（RCW），棋盘（CBW）和灰色到颜色（CBC）。基于以前的研究，假设CBC和CBW条件将导致更高的准确性，信息传输速率，波形幅度和对RCW条件的用户偏好。离线动态停止模拟也会增加信息传输速率。在CBC条件下观察到更高的平均准确性（89.7％），其次是CBW（84.3％）条件，并且RCW条件下最低（78.7％）;然而，这些差异没有达到统计学意义（p = .062）。八位参与者中的八个优选CBC和其余三种优选的CBW病症。离线动态停止仿真显着提高了信息传输速率（P = .005）并降低了精度（P <.000）。本研究的结果表明，颜色刺激提供了适度的性能改善，并且参与者更喜欢在单色刺激上进行色彩刺激。鉴于这些发现，应该考虑使用颜色刺激的BCI范式，以便有als的个体。

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