双刺激接口与使用局部移动刺激的逻辑划分
Mengfan Li1,2,3, Lingyu Wu1,2,3, Fang Lin4
1State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin, 300132 China.
Cognitive neurodynamics
|July 31, 2023
概括
本研究介绍了一种双刺激接口 (DS-WL),使用全闪和局部运动刺激来提高脑机接口 (BCI) 速度. 新方法通过减少额外刺激的干扰来提高准确性.
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:
- 基于事件相关潜力 (ERP) 的脑电脑接口 (BCI) 需要更快的信息传输速率来实现更快的指令输出.
- 之前的双刺激接口提高了速度,但在增加刺激复杂性时由于侧边效应而难以准确.
研究的目的:
- 开发一种新的双刺激接口 (DS-WL),结合全闪和局部运动刺激.
- 实施刺激安排规则,以提高具有多个刺激的BCI中的信号识别精度.
主要方法:
- 设计了一种双刺激接口 (DS-WL),结合了全闪和局部运动刺激.
- 开发了两个刺激安排规则来调节大脑信号幅度.
- 一个反向传播的神经网络分类器被用来识别来自20名参与者的大脑信号.
主要成果:
- 当地移动刺激产生的目标信号更大和延迟,有助于刺激歧视.
- 非目标刺激的处理是调节的安排规则,减少N200和P300幅度.
- DS-WL接口在意图识别方面表现出更高的准确性.
结论:
- DS-WL接口有效地缩短了基于ERP的BCI的指令输出周期.
- 当地移动刺激和特定安排规则的结合提高了BCI操作的速度和准确性.
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