Coherent Detected Periodic Brainwave Computer Control

相干检测周期性脑电波计算机控制

• 批准号: 7684504
• 负责人: ANDREW M JUNKER
• 金额: $ 3.4万
• 依托单位: BRAIN ACTUATED TECHNOLOGIES, INC.
• 依托单位国家: 美国
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-30 至 2008-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7684504
• 关键词: Brain; Communication; Compatible; Computer software; Computers; Conscious; Detection; Feedback; Frequencies; Generations; Goals; Hand; Human; Impairment; Learning; Literature; Methods; Muscle; Nature; Noise; Performance; Phase; Research; Series; Signal Transduction; Smooth Muscle; Software Design; System; Techniques; Testing; Training; Video Games; Vision; auditory feedback; commercial application; design; disability; experience; interest; research study; sensor; training aid

SPACE PROVIDED The objective is to demonstrate brainwave communication for users with severe muscle control disabilities. The basic technical approach will be to employ coherent detection of periodic brain waves, taking advantage of the ability of a coherent detection system to reject interference from muscle and random brainwave signals. The hands-free Cyberlink computer control system will be used as the basic building block. Software will be modified to operate with full coherent detection. Twenty subjects with severe muscle control disabilities will be used to answer the following questions: (i) can subjects be trained to generate periodic signals; (ii) is the signal-to-noise ratio of these periodic signals sufficient to allow reliable two-level decisions; (iii) can subjects be trained to control either the amplitude or frequency of these periodic signals and (iv) can the conscious blending of non-coherent signals enhance learning periodic signal generation. This represents a revolutionary approach to computer access. Control signals generated by the user will be independent of involuntary muscle activity making this method attractive as a computer access method for those with no other method of control due to involuntary muscle activity such as spasticity. Users that were previously locked-in, would now have access to computers, communication and control.

空白处 其目的是为严重肌肉控制的用户演示脑电波通信 残疾。基本的技术方法将是采用周期性脑电波的相干检测， 利用相干检测系统拒绝来自肌肉的干扰的能力， 随机脑电波信号免提Cyberlink计算机控制系统将用作基本系统 积木将修改软件，以在全相干检测下运行。20例受试者， 严重的肌肉控制障碍将用于回答以下问题：（i）受试者是否可以 （ii）这些周期性信号的信噪比是否足以 允许可靠的两级决策;（iii）受试者可以被训练来控制幅度或 这些周期性信号的频率和（iv）可以有意识地混合非相干信号 增强学习周期信号生成。这代表了一种革命性的方法， access.由用户产生的控制信号将独立于不自主的肌肉活动 使得该方法作为计算机访问方法对于那些没有其它控制方法的人来说是有吸引力的 由于无意识的肌肉活动，如痉挛。以前被锁定的用户现在可以 可以使用电脑，通讯和控制