MULTIUSER GEODESIC SENSOR NET EEG/ERP SYSTEM

新脑电(EEG)和事件相关电位(ERP) 技术极大地提高了大脑测量的空间分辨率 电活动。然而，这种情况相对较少。 高分辨率脑电/事件相关电位技术在临床中的应用 由于施加密集电极阵列所需的时间， 缺乏有效获取和处理数据的软件，以及 购置设备的成本。一种测地线传感器网络，由 Electric Geodesics Inc.(EGI)允许在 只有20分钟。与高阻抗网络配合使用时 放大器和先进的数据处理软件，该系统产生 脑电的“最新”时空表征 菲尔兹。 我们正在提出一种经济高效的测地线传感器网络脑电系统，它将 允许两个完善的电生理实验室和其他 正在进行临床研究的研究人员利用最新的 高分辨率脑电/事件相关电位技术的发展该系统包括 两个128通道脑电采集工作站和一个中央数据处理系统 工作站。这些工作站将安装在新的高分辨率 纽约州精神病研究所(NYSPI)的电生理学单位和 将通过快速光纤网络连接在一起。两个人 实验室和该系统的其他用户代表了广泛的 EEG/ERP研究，包括对青少年抑郁症的研究和 成人，精神分裂症和强迫症的研究， 婴幼儿研究，儿童发育研究，以及 正常衰老，以及阿尔茨海默氏症。均匀而密集的 128通道脑电系统提供的头皮覆盖范围和高级 用于脑电场时空分析的软件将 大大增强了这些研究中的地形数据。并将提供 电生理和其他成像中的联合测量基础 医疗模式，如MR1。

New electroencephalographic (EEG) and event-related potential (ERP) techniques have greatly improved spatial resolution in measures of brain electrical activity. There has, however, been relatively little application of these high-resolution EEG/ERP techniques in clinical research because of the time needed to apply dense arrays of electrodes, the lack of software to efficiently acquire and process the data and the cost of acquiring equipment. A Geodesic Sensor Net, developed by Electrical Geodesics Inc. (EGI), allows application of 128 electrodes in only 20 minutes. When used in conjunction with high-impedance Net amplifiers and advanced data processing software, this system yields "state of the art" spatiotemporal characterization of brain electrical fields. We are proposing a cost-effective Geodesic Sensor Net EEG System that will allow two well established electrophysiologic laboratories and other researchers doing clinical research to take advantage of the latest developments in high resolution EEG/ERP technology. The system includes two 128 channel EEG acquisition workstations and a central data processing workstation. These workstations will be located in a new High Resolution Electrophysiology Unit at New York State Psychiatric Institute (NYSPI) and will be linked together with a fast fiber optics network. The two laboratories and other users of the system represent a wide range of EEG/ERP research, including studies of depression in adolescents and adults, studies of schizophrenic and obsessive-compulsive disorders, studies in infants, developmental studies in children, and studies of normal aging, as well as Alzheimer's disease. The uniform and dense coverage of scalp afforded by the 128 channel EEG system and advanced software for spatiotemporal analysis of brain electrical fields will greatly enhance the topographic data in these studies. and will provide a basis for joint measurement in electrophysiologic and other imaging modalities, such as MR1.