应激条件下健康男性自主神经反应与特质焦虑的关系  

Relationship between autonomic nerve activity and trait anxiety in healthy males on stress

作　　者：邓光辉[1,2] 周雅玲[3] 刘永芳[1] 

机构地区：[1]华东师范大学心理与认知科学学院,上海200062 [2]第二军医大学心理学教研室 [3]解放军南京政治学院上海分院

出　　处：《上海医学》2014年第6期516-519,共4页Shanghai Medical Journal

基　　金：全军医学科研“十二五”课题资助(CWS12J015)

摘　　要：目的探讨应激条件下健康男性自主神经反应与特质焦虑的关系。方法收集高特质焦虑者(高特质焦虑组)、低特质焦虑者(低特质焦虑组)各23名,完成1个电脑游戏任务,记录皮肤电导(皮电)、皮肤表面温度(皮温)、心率,以及心率变异性(HRV)频域成分中低频成分(LF)、高频成分(HF)和LF/HF各指标在任务阶段的变化。结果高特质焦虑组恐惧、愤怒的主观评分显著高于低特质焦虑组(P值均<0.05)。维度上,高特质焦虑组的紧张度显著高于低特质焦虑组(P<0.01)。高特质焦虑组与低特质焦虑组间同时间段和两组内各时间段间各项指标的差异均无统计学意义(P值均>0.05)。高特质焦虑组与低特质焦虑组合并计算,基线时间段、预期时间段、应对时间段间的皮电(F=53.880)、心率(F=60.717)、LF(F=8.903)的差异均有统计学意义(P值均<0.01),心率逐步加快,皮电逐步增加;预期时间段的LF值均显著高于应对时间段和基线时间段(P值均<0.01),而应对时间段与基线时间段间的差异无统计学意义(P>0.05)。高特质焦虑组与低特质焦虑组间在基线时间段和预期时间段的3类自主神经反应模式分布的差异均无统计学意义(P值均>0.05)。结论特质焦虑影响被试者对应激任务的主观情绪体验。自主神经活动对应激任务敏感,而对特质焦虑不敏感。Objective To study the relationship between autonomic nerve activity and trait anxiety in healthy males on stress. Methods Forty-six healthy university students （23 high trait anxiety and 23 low trait anxiety） were asked to conduct a specific computer game. Skin conductance, skin temperature, heart rate, heart rate variability （HRV）, including low frequency （LF）, high frequency （HF）, and the ratio of LF to HF were recorded at baseline and during game period. Results The subjective scores of fear and anger and tense experience in high trait anxiety group were significantly higher than those in low trait anxiety group （P〈0.05 or 0.01）. There were no significant between-group or between-period differences in all measured parameters （all P〈0.05）. Skin conductance （ F = 53. 880）, heart rate （ F = 60. 717） and LF （ F = 8. 903） were significantly different among baseline period, expecting period and coping period in all subjects （all P 〈 0. 01 ）; skin conductance and heart rate gradually increased during the three periods. LF in expecting period was significantly higher than that in baseline and coping period （all P〈0.01 ）, but LF at baseline was not significantly different from that in coping period （P 〉 0.05）. There was no significant difference in the distribution of high, middle or low synchronous vegetative reaction between high trait anxiety group and low trait anxiety group either at baseline or atgame period （all P〉0.05）. Conclusion Trait anxiety can significantly interfere individual emotional experience in subjects. In healthy males, the effects of trait anxiety upon autonomic functional activity are not significant, while the effect of emotional stress is direct and significant.

关 键 词：特质焦虑 心脏自主神经活动 心率变异性 

分 类 号：R749.5[医药卫生—神经病学与精神病学]