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    System for interpolating surface potential values for use in calculating current density
    101.
    发明授权
    System for interpolating surface potential values for use in calculating current density 失效
    内插用于计算电流密度的表面电位值的系统

    公开(公告)号：US5247436A

    公开(公告)日：1993-09-21

    申请号：US763862

    申请日：1991-09-20

    Applicant: Charles L. Stone, Jr.

    Inventor： Charles L. Stone, Jr.

    IPC: A61B5/0478 ,  A61B5/0482 ,  G06F17/00

    CPC classification number: G06K9/0057 ,  A61B5/0478 ,  A61B5/0482

    Abstract: A system for mapping and/or displaying spatiotemporal features of underlying event-related neural activity involves measuring the event-related evoked potential values at a limited number of points over the region of interest, deriving a first grid of potential values at points over the area of interest representing at least about a five fold increase in the number of points by a Kriging-type of spatial statistical interpolation, and using the first grid to derive for the region of interest a second grid of points of current density values by a Laplacian conversion. A plurality of second grids of current density values spaced apart in time are derived and displayed on a monitor in cartoon-type fashion to provide a cartoon-type display of the features of the event-related evoked response over the region of interest varying with time. Various other displays are possible for highlighting specific features.

    Abstract translation: 用于映射和/或显示潜在事件相关神经活动的时空特征的系统涉及在感兴趣区域上的有限数量的点处测量与事件相关的诱发电位值，从而在该区域上的点处导出潜在值的第一格 利用Kriging类型的空间统计插值表示点数至少增加了五倍，并且使用第一网格通过拉普拉斯算子的转换来为感兴趣区域导出电流密度值的第二格点 。 导出在时间上间隔开的多个当前密度值的第二格栅，并以卡通式方式显示在监视器上，以提供在随时间变化的感兴趣区域中的与事件相关的诱发响应的特征的卡通式显示 。 各种其他显示器可以突出显示特定的功能。

    Electroencephalic neurofeedback apparatus and method for bioelectrical frequency inhibition and facilitation
    102.
    发明授权
    Electroencephalic neurofeedback apparatus and method for bioelectrical frequency inhibition and facilitation 失效
    脑电神经反馈装置和生物电频率抑制和促进方法

    公开(公告)号：US4919143A

    公开(公告)日：1990-04-24

    申请号：US365717

    申请日：1989-06-14

    Applicant: Margaret E. Ayers

    Inventor： Margaret E. Ayers

    IPC: A61B5/0402 ,  A61B5/0476 ,  A61B5/0482 ,  A61B5/0484 ,  A61M21/02 ,  A61N1/32

    CPC classification number: A61B5/0482 ,  Y10S128/905

    Abstract: An improved method and apparatus for displaying and either inhibiting or promoting selected bioelectrical frequencies emitted by a living organism. The method includes the steps of detecting an analog bioelectrical signal, converting the signal to discrete digital signals representing corresponding frequencies and numerically analyzing the digital signals to determine the different bioelectrical frequencies emitted by the organism. Furthermore, a threshold amplitude associated with a selected digital signal can be established an auditory or visual signal can be sent to the organism to indicate whether the bioelectrical frequency under study is within or outside the threshold amplitude. With this information the organism can be taught to inhibit or facilitate the bioelectrical frequency. The apparatus comprises a pair of electrodes, an analog signal amplifier, an analog to digital converter, a selector to select a frequency of interest, a display monitor, and a computer to distinguish the digital signals as different frequencies, display the frequencies, and determine when the frequency is falling inside or outside a predetermined range. Also, a magnetic medium recording device is used to capture data. Finally, a lighting or sounding circuit is used to tell the organism whether the frequency under study is being inhibited or facilitated.

    Abstract translation: 一种用于显示和抑制或促进由生物体发射的选定生物电频率的改进的方法和装置。 该方法包括以下步骤：检测模拟生物电信号，将信号转换成代表相应频率的离散数字信号，并对数字信号进行数字分析，以确定生物体发射的不同生物电频率。 此外，可以建立与所选择的数字信号相关联的阈值幅度，可以向生物体发送听觉或视觉信号，以指示正在研究的生物电频率是否在阈值振幅内或之外。 有了这个信息，可以教导生物体抑制或促进生物电频率。 该装置包括一对电极，模拟信号放大器，模数转换器，选择感兴趣频率的选择器，显示监视器和计算机，以将数字信号区分为不同频率，显示频率，并确定 当频率落在预定范围内或外时。 此外，磁介质记录装置用于捕获数据。 最后，使用照明或探测电路来告诉生物体，正在研究的频率是否受到抑制或促进。

    Biofeedback system
    103.
    发明授权
    Biofeedback system 失效
    生物反馈系统

    公开(公告)号：US4334545A

    公开(公告)日：1982-06-15

    申请号：US97985

    申请日：1979-11-28

    Applicant: Kazumasa Shiga

    Inventor： Kazumasa Shiga

    IPC: A61M21/02 ,  A61B5/0482 ,  A61B5/0484 ,  A61B5/04

    CPC classification number: A61B5/0482 ,  A61B5/04845

    Abstract: Mental activity of a human subject is indicated with electrodes placed on the head of the subject to respond to brain activity. The electrodes derive a signal including low and high frequency a.c. components respectively having frequency ranges in the same low frequency range as alpha waves derived by the brain and considerably higher than the highest frequency of the alpha waves. The high and low frequency amplitude components are supplied to an indicator arranged so the mental state activity is indicated only in response to the detected high frequency component having an amplitude less than a level indicative of the subject not being in a state of relaxation and the detected low frequency component having an amplitude greater than a first predetermined value and less than a second predetermined value. The low frequency amplitude between the first and second predetermined values is associated with the alpha waves.

    Abstract translation: 人类受试者的心理活动用放置在受试者头部上的电极表示以响应脑活动。 电极导出包括低频和高频a.c. 分量具有与由脑导出的α波相同的低频范围的频率范围，并且显着高于α波的最高频率。 高频和低频振幅分量被提供给指示器，所述指示器被布置成使得仅仅响应于检测到的具有小于表示被摄体处于松弛状态的水平的水平的检测到的高频分量来指示心理状态活动，并且检测到 低频分量具有大于第一预定值且小于第二预定值的振幅。 第一和第二预定值之间的低频振幅与α波相关联。

    Multiple channel phase integrating biofeedback computing method
    104.
    发明授权
    Multiple channel phase integrating biofeedback computing method 失效
    多通道相集成生物反馈计算方法

    公开(公告)号：US3978847A

    公开(公告)日：1976-09-07

    申请号：US492954

    申请日：1974-07-29

    Applicant: Lester G. Fehmi ,  Joseph R. Schneider

    Inventor： Lester G. Fehmi ,  Joseph R. Schneider

    IPC: A61B5/0424 ,  A61B5/0476 ,  A61B5/0482 ,  A61B5/04

    CPC classification number: A61B5/0476 ,  A61B5/0424 ,  A61B5/0482

    Abstract: Multiple monopolar electrical contacts are applied to the scalp or body, using other points on the body as reference and ground. The brain muscle or other bioelectric waves conducted from each contact, relative to the reference point, are amplified, filtered, and instantaneously analysed to produce a signal which may be perceived by the person or persons generating the bioelectric waves. This sensory feedback signal simultaneously may communicate to the generating party or parties the ongoing fluctuations in frequency, amplitude, and phase unity among two or more biological rhythms occuring within an individual, couple, or group of persons. The feedback signal may be used as an aid to establish awareness and control over the functions monitored, as an aid to meditation, as an aid to learning to flexibly and easily establish or dissolve the various states of attention and consciousness associated with the signaled characteristics of the monitored brainwaves or muscle potentials and as an aid to communication between neural systems within a person, i.e., lobes of the brain, muscle groups or between other nonverbal biological activities of two or more persons being monitored.

    Abstract translation: 将多个单极电触点施加到头皮或身体，使用身体上的其他点作为参考和接地。 从每个接触相对于参考点传导的脑肌或其他生物电波被放大，过滤和瞬时分析，以产生可能被生成生物电波的人感知的信号。 这种感觉反馈信号同时可以向发生方或各方传达在个体，夫妇或一组人群中发生的两个或多个生物节律之间的频率，幅度和相位一致的持续波动。 可以将反馈信号用于帮助建立对所监视功能的认识和控制，作为冥想的辅助，以帮助学习灵活和容易地建立或解决与信号特征相关联的各种关注和意识状态 监测的脑电波或肌肉电位，并作为一个人之间的神经系统，即大脑，肌肉组之间或被监测的两个或多个人的其他非语言生物活性之间的通信的辅助。

    SYSTEM AND METHOD FOR CHARACTERIZING THE SLEEP OF AN INDIVIDUAL
    108.
    发明申请
    SYSTEM AND METHOD FOR CHARACTERIZING THE SLEEP OF AN INDIVIDUAL 审中-公开

    公开(公告)号：US20180263553A1

    公开(公告)日：2018-09-20

    申请号：US15738316

    申请日：2016-07-07

    Applicant: URGOTECH

    Inventor： BÉATRICE SPILUTTINI HEBERT

    IPC: A61B5/00

    CPC classification number: A61B5/4815 ,  A61B5/04015 ,  A61B5/0478 ,  A61B5/048 ,  A61B5/0482 ,  A61B5/4806 ,  A61B5/4809 ,  A61B5/4812 ,  A61B5/4836 ,  A61M21/02 ,  A61M2021/0011 ,  A61M2230/10

    Abstract: The invention relates to a system for characterising the sleep of an individual, the characterisation system comprising: a measuring device for measuring a brain activity signal representing the brain waves; a central electronic unit for identifying, in a range of frequencies of between 9 and 16 Hz, a smaller range of sleep spindles of the individual, the smaller range of sleep spindles comprising the brain wave frequencies of the sleeping individual, having an amplitude higher than 15 μV and a duration of between 0.5 seconds and 2 seconds, and comparing, with a threshold, at least one parameter of the brain activity signal of the awake individual in the range of frequencies corresponding to the smaller range of sleep spindles; and a communication interface connected to the central unit and used to emit a warning signal perceptible by the individual when the parameter of the brain activity signal in the range of frequencies corresponding to the smaller range of sleep spindles exceeds the threshold.

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