MULTIUSER GEODESIC SENSOR NET EEG/ERP SYSTEM

多用户测地线传感器网络 EEG/ERP 系统

• 批准号: 2503030
• 负责人: GERARD E BRUDER
• 金额: $ 18.98万
• 依托单位: NEW YORK STATE PSYCHIATRIC INSTITUTE DBA RESEARCH FOUNDATION FOR MENTAL HYGIENE, INC
• 依托单位国家: 美国
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-05-01 至 2002-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2503030
• 关键词: biomedical equipment purchase; brain electrical activity; clinical biomedical equipment; computer program /software; electroencephalography; electrophysiology; evoked potentials

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.

新的脑电图（EEG）和事件相关电位（ERP） 技术在大脑测量方面具有大大改善的空间分辨率 电活动。但是，相对较少 这些高分辨率EEG/ERP技术在临床中的应用 研究由于需要应用密集阵列的电极的时间， 缺乏有效获取和处理数据的软件以及 获取设备的成本。一个大地传感器网，由 电气测量公司（EGI），允许在128个电极中应用 只有20分钟。当与高阻抗网一起使用时 放大器和高级数据处理软件，该系统产生 “艺术状态”大脑电气的时空表征 字段。 我们正在提出一个具有成本效益的地球传感器网元系统，该系统将 允许两个建立的电生理实验室和其他 进行临床研究的研究人员利用最新的 高分辨率EEG/ERP技术的发展。该系统包括 两个128频道脑电图采集工作站和一个中央数据处理 工作站。这些工作站将位于新的高分辨率中 纽约州精神病学研究所（NYSPI）和 将与快速光纤网络链接。两个 实验室和系统的其他用户代表着广泛的 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， 对婴儿的研究，儿童的发展研究以及 正常衰老以及阿尔茨海默氏病。统一和密集 128频道脑电图系统提供的头皮覆盖范围和高级 用于大脑电场时空分析的软件将 在这些研究中大大增强了地形数据。并将提供 电生理和其他成像的联合测量的基础 模式，例如MR1。