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基于代码调制的视觉唤起潜力 (cVEP) 的脑计算机接口 (BCI) 不同视觉反方法的评估.

Milán András Fodor1, Hannah Herschel1, Atilla Cantürk1

  • 1Faculty of Technology and Bionics, Rhine-Waal University of Applied Sciences, 47533 Kleve, Germany.

Brain sciences
|August 29, 2024
PubMed
概括
此摘要是机器生成的。

这项研究比较了脑电脑接口 (BCI) 的动态和值视觉反接口. 动态界面,调整目标大小,提供了个性化的好处,并减少了一些用户的分心,增强了BCI体验.

关键词:
这是一个BCI拼写器.基于EEG的BCI是基于EEG的BCI.大脑计算机接口 (BCI)编码调制的视觉唤起潜能 (cVEP)视觉唤起的潜力 (VEP)

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科学领域:

  • 神经科学与人与计算机的交互
  • 生物医学工程和信号处理.

背景情况:

  • 大脑计算机接口 (BCI) 使用脑电图 (EEG) 进行大脑设备通信.
  • 代码调制的视觉唤起潜力 (cVEP) BCI需要有效的视觉反以获得最佳性能.
  • 之前的研究表明,视觉反可以提高信息传输速度 (ITR) 并减少用户疲劳.

研究的目的:

  • 为了比较动态视觉反接口与cVEP拼写器中的传统值条接口的性能.
  • 为了评估两个接口类型之间的用户体验,准确性,ITR和每分钟输出字符 (OCM).
  • 研究个性化界面设计在提高BCI可用性方面的潜力.

主要方法:

  • 使用三步cVEP拼写器测试了两个视觉反接口:一个具有尺寸变化的目标的动态接口和一个值条接口.
  • 参与者使用了两种接口,并记录了他们的绩效指标,包括准确性,ITR和OCM.
  • 还收集了对用户体验的定性反,包括分心水平.

主要成果:

  • 动态界面和值界面在准确性,ITR和OCM方面都表现出可比的平均性能.
  • 一部分参与者表现出显著改善的表现,并报告了动态界面的分散注意力减少.
  • 个人用户的回应表明他们更喜欢动态界面,这表明了个性化的好处.

结论:

  • 虽然平均性能指标相似,但动态界面为特定用户提供了显著的优势,提高了BCI的可用性.
  • 在BCI系统中选择个性化接口可以优化用户体验和性能.
  • 动态视觉反具有提高BCI技术对更广泛受众的用户友好性和有效性的潜力.