悲伤情绪下高中低心理素质军人自主神经反应的特点

目的探讨高、中、低心理素质军人在悲伤情绪诱发下自主神经反应特点。方法选取某基层部队官兵912名,进行军人心理素质量表测验,选出54名高、中、低心理素质组军人各18名。采用2份中性和2份悲伤情绪刺激材料诱导情绪,利用多参数生物反馈仪,记录自主神经反应的十个指标和相应自主神经反应的平均恢复时间。结果 (1)在中性情绪材料刺激下,低心理素质组(15.05±9.27)b/min]的心率(HR)显著高于高心理素质组(6.15±1.01)b/min]。(2)在悲伤情绪材料刺激下,低心理素质组(-6.67±1.29)mm Hg、(13.05±8.45)nU、(6.90±0.39)nU、(21.69±13.25)b/min]的指端血容振幅(BVP)、标化低频功率、标化高频功率和HR的变化显著大于中心理素质组(-3.58±2.01)mm Hg、(6.87±6.15)nU、3.86±0.40)nU、(12.06±8.63)b/min]与高心理素质组(-1.65±1.68)mm Hg、(8.15±1.98)nU、(2.95±0.45)nU、(7.55±9.77)b/min];低心理素质组(6.85±4.16)ms]与中心理素质组(5.79±3.93)ms]的RR间期差值均方根(RMSSD)变化显著大于高心理素质组(1.47±3.98)ms];在自主神经反应恢复时间方面,低心理素质组(22.33±25.47)sec]的皮温(TEMP)显著高于高心理素质组(12.05±3.54)sec]。(3)在主观情绪感受方面,在悲伤情绪材料刺激下低心理素质组(-1.98±1.22、-1.87±1.55)愉悦度和优势度(-1.98±1.22、-1.87±1.55显著大于中心理素质组(-1.02±1.66、-0.78±0.59)与高心理素质组(-1.09±1.54、-0.36±0.24)。结论在悲伤情绪材料刺激下,军人心理素质高低可能与交感神经系统兴奋性的高低有关。

Characteristics of autonomic nervous responses of armyman with different mental quality levels during the grief processes

Objective To investigate the characteristics of autonomic nervous response of armyman with different mental quality levels during sad emotion process.Methods Eighteen armymen with high mental quality,eighteen armyteen with moderate,and eighteen armymen with low were selected with Mental Quality Questionnaire of Armymen(MQQA).All participants completed the emotion-induction task.Results(1) Under neutral conditions,the heart rate(HR) was significantly higher in low mental quality group than that in high mental quality group.(2) During sad emotion processes the blood volume pulse(BVP),normalized low frequency spectral component(Lfnorm),normalized high-frequency spectral component(Hfnorm),and heart rate(HR) were significantly higher in low mental quality group (-6.67±1.29) mm Hg,(13.05±8.45)Nu,(6.90±0.39)nU,and(21.69±13.25)b/min,respectively] than those in the moderate group (-3.58±2.01) mm Hg,(6.87±6.15)nU,3.86±0.40)nU,and(12.06±8.63)b/min,respectively] and those in high group (-1.65±1.68) mm Hg,(8.15±1.98)nU,(2.95±0.45)nU,and(7.55±9.77)b/min,respectively].However,the root mean square difference of RR interval(RMSSD) was significantly higher in low (6.85±4.16)ms] and moderate (5.79±3.93)ms] mental quality group than that in high group (1.47±3.98)ms].The recovery time of skin temperature during sad emotion processes was significantly higher in low mental quality group (22.33±25.47)sec] than that in high group (12.05±3.54)sec].(3) The valence and arousal value during sad emotion processes were significantly higher in low mental quality group(-1.98±1.22 and-1.87±1.55,respectively) than those in the moderate group(-1.02±1.66 and-0.78±0.59,respectively) and those in high group(-1.09±1.54 and-0.36±0.24,respectively).Conclusion The findings indicated that compared to the armymen with moderate and higher mental quality,armymen with low would show stronger physiological arousal.That may relate to the excitement of sympathetic nerve system when they faced sad emotional stimuli.