摘要目的 观察0.65 MPa氦氧环境下潜水员记忆和空间能力的变化及对潜水员心理的影响.方法 采用棋盘空间记忆广度和折纸空间推理的方法 ,分别对7名专业潜水员进行测量,比较他们在常压和0.65 MPa氦氧环境中的成绩.结果 7名被试者在常压和0.65 MPa氦氧环境中棋盘空间广度记忆测验结果 ,除1人外其他被试者测试成绩均发生了变化,暴露前后比较差异有统计学意义(P<0.05).空间推理能力测验结果 显示存在明显个体差异,0.65 MPa氦氧环境中的测试成绩普遍低于常压环境.结论 氦氧暴露后潜水员的记忆能力和空间推理能力有一定的下降,其发生的机制还需要进一步探讨.

abstractsObjective To observe changes in the memory and spatial reasoning of divers under a pressure of 0.65 MPa and to further investigate effects of hyperbaric exposure on the psychological performance of divers. Methods Seven divers were tested for their memory and spatial reasoning with the spatial memory span test and spatial reasoning test before and during exposure to 0. 65 MPa helium-oxygen mixture. The memory and spatial reasoning indices obtained were used to compare different results between the two conditions. Results The results obtained from the two tests indicated that memory and spatial reasoning indices of the 6 divers (with only one exception) were influenced by 0.65 MPa exposure, and statistical difference could be seen between pre-exposure and post-exposure (P < 0. 05). Spatial reasoning test showed that there were obvious individual differences in divers. The score obtained under 0.65 MPa exposure was generally lower than that under normal pressure. Conclusions The memory and spatial reasoning of divers under helium-oxygen hyperbaric exposure dropped to some extent, whose mechanism remained to be explored.