不要把单词放在我的嘴里:语音感知可以错误地激活大脑-计算机接口
Anouck Schippers1, Mariska J Vansteensel1, Zac V Freudenburg1
1Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Heidelberglaan 100, Utrecht, 3584 CX, The Netherlands.
Journal of neuroengineering and rehabilitation
|August 19, 2025
概括
语音感知可以在解码语音产生的大脑计算机接口 (BCI) 中触发虚假阳性. 研究人员发现,可以将感知语音与产生的语音区分开来,这对于可靠的BCI控制至关重要.
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) 通过从大脑活动中解码语音,显示出对通信的希望.
- 感觉运动皮质 (SMC) 是语音解码BCI的关键,但在语音感知过程中也很活跃,可能导致BCI错误.
- 了解语音感知干扰对于可靠的BCI控制至关重要.
研究的目的:
- 为了研究语音感知如何干扰可靠的语音BCI控制.
- 确定语音感知是否导致语音解码BCI中的假阳性激活.
- 评估感知与产生的语音信号的区分能力.
主要方法:
- 在语音感知和语音制作任务中记录了五个受试者的高密度电皮质谱 (HD-ECoG).
- 在语音制作数据上训练了一个支持向量机 (SVM) 解码器.
- 在语音感知数据上测试解码器,以识别假阳性并评估信号区分能力.
主要成果:
- 语音感知和语音产生都会激活感官运动皮质 (SMC).
- 在生产数据上训练的语音解码BCI可以在语音感知过程中产生假阳性.
- 感知语音可以准确地区分出产生的语音和休息状态.
结论:
- 语音感知对可靠的BCI控制构成重大干扰风险.
- BCI设计必须包含策略,以减轻语音感知中的错误阳性,以获得成功的用户采用.
- 区分感知到产生的语音是可行的,提供了一条改善BCI准确性的途径.
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