• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Internet Journal of Neuromonitoring >Visual Evoked Potentials And Acupuncture
【24h】

Visual Evoked Potentials And Acupuncture

机译：视觉诱发电位和针灸

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Visual evoked potentials (VEP) are of particular importance for the objectivization of organic and functional defects in the visual system. This study presents, for the first time, the use of systematic VEP-monitoring in connection with manual acupuncture and laserpuncture in 40 healthy volunteers. We were not able to find significant changes in latency or in the amplitudes of VEP′s during acupuncture. Introduction Visual evoked potentials (VEP) are of particular importance for the objectivization of organic and functional defects in the visual system [1]. For this reason the function of the primary visual pathway, which is not directly influenced by the brain stem, has to be examined. In connection with pathologic states of consciousness, especially somatosensory [2] and auditory [3] evoked potentials (EPs) are described; in both cases, the primary pathway passes through the brain stem and the EPs are altered characteristically during comatose states [1,3,4,5]. This study presents, for the first time, the use of systematic VEP-monitoring in connection with manual acupuncture and laserpuncture in 40 healthy volunteers. Methods and Materials Volunteers Forty healthy volunteers aged between 20 and 45 years (mean age + SD: 24.8 + 4.7 years), 27 female and 13 male, took part in this study. None of the volunteers had striking ophthalmolgic findings or were taking central nervous system effective medication at the time of examination. All test persons had an inconspicious psychiologic and neurologic status and anamnesis. The study was approved by the Ethic Committee at the University of Graz (11-017, 00/01). Stimulation, registration and evaluation parameters Registration of VEPs was done with equipment from Axon Systems Inc., Hauppauge, N.Y., USA. Recording of bioelectrically evoked brain activity was performed from Oz to Fz using a grounding electrode GND between Oz and Fz in accordance with the international 10:20 system. (Fig. 1). We used new EEG-cable electrodes [6] and adhered them with conductive paste (Grass EC2). Electrode impedance was always below 2 kOhm. In order to examine the visual system, light stimulation with a stimulus frequency of 1.8 Hz was applied at 3 second intervals by special spectacles having 6 integrated ?high-intensity-lamps”. Filters were set at 1.0 to 100 Hz and n=130 stimuli were averaged. The analysis window comprised 0 to 400 ms and the stimulus was presented binocularly with closed eyes. The absolute latency of components N75 (L1), P100 (L2) and N140 (L3) as well as the amplitudes N75/P100 (A1) and P100/N140 (A2) were used as evaluation parameters.
机译：视觉诱发电位（VEP）对于视觉系统中有机和功能缺陷的客观化特别重要。这项研究首次介绍了系统性VEP监测与40名健康志愿者的人工针刺和激光穿刺结合使用的情况。在针刺过程中，我们没有发现潜伏期或VEP幅度的显着变化。引言视觉诱发电位（VEP）对于视觉系统中有机和功能性缺陷的客观化尤为重要[1]。因此，必须检查不受脑干直接影响的主要视觉通路的功能。结合意识的病理状态，特别是体感[2]和听觉[3]诱发电位（EPs）的描述;在这两种情况下，主要途径都经过脑干，并且在昏迷状态下EP会发生特征性改变[1,3,4,5]。这项研究首次介绍了系统性VEP监测与40名健康志愿者的人工针刺和激光穿刺结合使用的情况。方法和材料志愿者40名年龄在20至45岁（平均年龄+ SD：24.8 + 4.7岁）之间的健康志愿者，其中女性27位，男性13位。在检查时，没有志愿者有明显的眼科检查发现或正在服用中枢神经系统有效药物。所有测试者的心理和神经系统状态均良好，并进行了记忆检查。该研究得到格拉茨大学伦理委员会的批准（11-017，00/01）。刺激，注册和评估参数VEP的注册使用美国纽约州Hauppauge的Axon Systems Inc.的设备进行。根据国际10:20系统，使用Oz和Fz之间的接地电极GND从Oz到Fz进行生物电诱发的大脑活动的记录。 （图。1）。我们使用了新的EEG电缆电极[6]，并用导电胶（Grass EC2）粘合。电极阻抗始终低于2 kOhm。为了检查视觉系统，用具有6个集成的“高强度灯”的特殊眼镜以3秒的间隔施加刺激频率为1.8 Hz的光刺激。将滤波器设置为1.0至100 Hz，并平均n = 130刺激。分析窗口包括0到400毫秒，并且双眼闭着眼睛呈现刺激。组件N75（L1），P100（L2）和N140（L3）的绝对等待时间以及幅度N75 / P100（A1）和P100 / N140（A2）被用作评估参数。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号