• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >The Sleep Process of Rabbits Exposed to Low Intensity Non-Ionizing Electromagnetic Radiation. I. Development of Methodology.
【24h】

The Sleep Process of Rabbits Exposed to Low Intensity Non-Ionizing Electromagnetic Radiation. I. Development of Methodology.

机译：低强度非电离电磁辐射兔的睡眠过程。一，方法论的发展。

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

摘要

Data have shown brain electrical activity associated with sleep states to be biologically constant for any given species. Further, nonionizing radiation exposure has been shown to alter brain electrical activity. The sleep process is characterized by cyclic fluctuations between alertness (W), slow wave (SW), and paradoxical (REM) stages. Rapid eye movement sleep (REM) is a very active state metabolically and is functionally defined as that period of sleep in which cortical activity paradoxically reveals low voltage, fast activity characteristic of the awake phase, concurrent with rapid eye movement, and atonus of neck muscle. Chronic recordings of electrocorticogram (ECoG), electro-oculogram (EOG), and electromyogram (EMG) were obtained daily from adult male rabbits on a 24-hour basis following daily 2-hour pulsed microwave exposure at 3.7 GHz (1000 pps, 60% duty cycle, 10 mW//sq cm) for sixty days. The surgical implant assembly was designed to allow chronic post-irradiation recording while allowing no metallic elements to be associated with the subjects during microwave exposure. A unique application of logic circuitry allowed the investigator to quantify both the frequency and duration of REM stage episodes. The sleep process is viewed as a potential index of CNS adaptation to prolonged EMR exposure. (Author)

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