Brain-computer communication:: Self-regulation of slow cortical potentials for verbal communication
Brain-computer communication:: Self-regulation of slow cortical potentials for verbal communication
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DOI：
10.1053/apmr.2001.26621
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发表时间：
2001-11-01
影响因子：
4.3
通讯作者：
Birbaumer, NP
中科院分区：
文献类型：
--
作者：
K端bler, A;Neumann, N;Birbaumer, NP
目的：测试旨在使严重瘫痪患者能够通过慢皮质电位自我调节进行交流的训练程序。设计：应用思维翻译装置来评估晚期肌萎缩侧索硬化症 (ALS) 患者的程序。地点：在患者家中进行训练。参与者：两名晚期 ALS 男性患者。干预措施：患者学会通过大脑和大脑之间的接口自主控制其慢皮质电位。电脑。训练基于缓慢皮质电位变化的视觉反馈和操作性学习原则。学习过程分为逐步增加难度的小步骤。主要指标：慢皮质电位自我控制的准确性（正确反应的百分比）。学习进度作为训练课程的函数进行计算。结果：在 3 至 8 周内，两名患者学会了自我调节其缓慢的皮层电位，并使用此技能在语言支持计划中选择字母或单词。结论：该训练计划是第一个使严重瘫痪患者仅通过脑电图电位的自我调节而无需任何随意肌肉控制即可进行交流的训练计划。该协议可以成为培训患者其他脑机接口技术的模型。 (C) 2001 年由美国康复医学大会和美国物理医学与康复学会颁发。
Objective: To test a training procedure designed to enable severely paralyzed patients to communicate by means of self-regulation of slow cortical potentials.Design: Application of the Thought Translation Device to evaluate the procedure in patients with late-stage amyotrophic lateral sclerosis (ALS).Setting: Training sessions in the patients' homes.Participants: Two male patients with late-stage ALS.Interventions: Patients learned voluntary control of their slow cortical potentials by means of an interface between the brain and a computer. Training was based on visual feedback of slow cortical potentials shifts and operant learning principles. The learning process was divided into small steps of increasing difficulty.Main Outcome Measures: Accuracy of self-control of slow cortical potentials (percentage of correct responses). Learning progress calculated as a function of training session.Results: Within 3 to 8 weeks, both patients learned to self-regulate their slow cortical potentials and to use this skill to select letters or words in the Language Support Program.Conclusions: This training schedule is the first to enable severely paralyzed patients to communicate without any voluntary muscle control by using self-regulation of an electroencephalogram potential only. The protocol could be a model for training patients in other brain-computer interface techniques. (C) 2001 by the American Congress of Rehabilitation Medicine and th American Academy of Physical Medicine and Rehabilitation.