在短暂的触觉图像中皮层激活和BCI性能:与运动图像进行比较研究
Puja Sengupta1, Kishor Lakshminarayanan1
1Neuro-Rehabilitation Lab, Department of Sensors and Biomedical Technology, School of Electronics Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India.
Behavioural brain research
|November 18, 2023
概括
触觉图像 (TI) 显示了与大脑-计算机接口 (BCI) 运动图像 (MI) 的可比性大脑活动和分类准确性. TI提供了一个可行的替代方案,特别是当视觉反有限时.
科学领域:
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
- 人与计算机的交互
背景情况:
- 大脑-计算机接口 (BCI) 经常使用运动图像 (MI) 进行控制.
- 触觉图像 (TI) 是一种新兴的替代方案,在视力受损的场景中可能有用.
研究的目的:
- 为了比较TI和MI之间的皮质活动和分类性能.
- 评估TI作为BCI控制策略的有效性.
主要方法:
- 12名参与者执行了涉及索引数字的TI和MI任务.
- 在mu和β频段分析了与事件相关的脱同步 (ERD).
- 使用人工神经网络 (ANN) 进行数字分类准确性评估.
主要成果:
- TI和MI都引起了可比的ERD模式,在成像过程中显著下降.
- 对于TI (79.30%) 和MI (81.10%),ANN实现了高分类准确度.
- 在TI和MI之间没有发现分类准确度的显著差异 (p=0.11).
结论:
- 触觉图像诱导显著的皮质变化,与运动图像相似.
- TI表现出高分类准确度,支持其在BCI应用中的潜力.
- TI是一种有前途的BCI替代策略,特别适用于视力受限的用户.
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