中文摘要：

目的探讨头低位卧床模拟航天环境对个体焦虑情绪的影响。方法：采用贝克焦虑量表考察了16名男性被试在45天-6°头低位卧床模拟航天环境下，卧床前2天，卧床中第11天、第20天、第32天，第40天以及卧床后第8天焦虑情绪的变化规律。结果：研究结果发现，在卧床前，被试“害怕发生不好事情”的感受显著高于卧床中和恢复期（P〈0．05）；卧床期间，被试在卧床初期出现了焦虑情绪的显著上升（P〈0．05）；卧床中，被试更多的表现为躯体性焦虑的变化，并呈现不同的变化趋势：在卧床初期和中期被试“头晕”的感受显著上升（P〈0．05），在卧床中后期被试“出汗”的感受显著降低（P〈0．05），在卧床后期被试“感到发热”的感受显著上升（P〈0．05），在恢复期被试“腿部颤抖”、“不能放松”感受显著上升（P〈0．05），在卧床前、中、后期以及恢复期被试“消化不良或腹部不适”的感受显著上升（P〈0．05）。结论：个体在卧床前会表现出对未来的担忧情绪，在卧床初期会表现出焦虑情绪的波动，在卧床中后期，更多的可能是诱发了个体的躯体性焦虑而非焦虑心境。

英文摘要：

Objective To investigate the development and characteristics of individual＇ s anxiety during 45 days -6°Head-down bed rest. Methods： The research evaluated anxiety changes with 16 males during 45 days -6° head-down bedrest（HDBR）. We used BAI to record the anxiety emotion of participants on six time points, before（R-2）, during（R11, R20,R32, R40） and after（R＋8） respectively. Results： The result demonstrated that before HDBR, individuals＇ fear of ＂the worsthappening＂ was significantly greater than that during and after HDBR（P〈0.05）. During the HDBR, participants got elevatedanxiety symptoms, most of which were somatic anxiety. Further, these somatic anxiety showed different characteristics of development： the ＂feeling of dizzy or lightheaded＂ increased in the early and middle period of HDBR（P〈0.05）, and ＂feelinghot＂ was significantly elevated in later period（P〈0.05）, and＂sweating（not due to heat）＂ decreased in the middle and later pe-riods（P〈0.05）. After HDBR, feelings of ＂wobbliness in legs＂ and ＂unable to relax＂ became much more stronger（P〈0.05）. Inaddition, only＂indigestion or discomfort in abdomen＂ continued to rise in the six time points（P〈0.05）. Conclusion： The research suggest individual＇ s fear emotion before HDBR and emotional fluctuation of anxiety will be elevated in the earlystage of HDBR. The stimulated weightless environment induced participants＇ somatic anxiety but not psychological anxiety.