首页 | 本学科首页   官方微博 | 高级检索  
     

持续性+Gz作用对清醒家兔脑干听觉诱发电位的影响
引用本文:周云龙 刘光远. 持续性+Gz作用对清醒家兔脑干听觉诱发电位的影响[J]. 航天医学与医学工程, 1990, 3(1): 22-26
作者姓名:周云龙 刘光远
作者单位:航天医学工程研究所 北京(周云龙),航天医学工程研究所 北京(刘光远)
摘    要:
本实验分析测量了不同G 值怍用条件下清醒家兔的脑干听觉诱发电位(BAEP),结果发现较低值的+Gz 作用对BAEP 潜伏期无明显影响5、6、7G 作用可使BAEP 1波峰潜期显著延长,而1~5波峰间潜期相对稳定。+Gz 作用对BAEP 各波幅值和频域特性有一定程度的影响。其影响机制可能与+Gz 作用引起的头水平血流减少和异常外周传入增加有关。实验结果可为超重条件下的工效学研究提供有益的参考。

关 键 词:加速度 持续性 兔 脑干 诱发电位

Effects of Sustained +Gz Stress on BAEP in Waked Rabbits
Zhou Yunlong. Effects of Sustained +Gz Stress on BAEP in Waked Rabbits[J]. Space Medicine & Medical Engineering, 1990, 3(1): 22-26
Authors:Zhou Yunlong
Abstract:
Brain-stem auditory evoked potentials (BAEP) in waked rabittswere observed during different levels of +Gz Stress.The resultsshowed that there was no obvious effect at lower G stresses onthe latencies of BAEP.The latency of BAEP wave 1 delayed signifi-cantly during +5,+6 and +7 Gz stresses,but the interwave latency(1-5) remained essentially unchanged The amplitude and frequencycharacteristics of BAEP were influenced to a certain extent.Theeffects of sustained +Gz stress on BAEP might be related to thehemodynamic changes at brain level and the unique peripherocep-tive stimuli during G stress.The results may provide reference forperformance studies during G stresses.
Keywords:Acceleration physiological effects  Evoked response  Brain stem
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号