Research Center in Applied Combat (CESCA), Toledo, Spain; Applied Psychophysiological Research Group, European University of Madrid, Spain.
Research Center in Applied Combat (CESCA), Toledo, Spain; Applied Psychophysiological Research Group, European University of Madrid, Spain.
Int J Psychophysiol. 2018 Jun;128:40-46. doi: 10.1016/j.ijpsycho.2018.03.009. Epub 2018 Mar 22.
The present study aimed to analyze the effect of underground operations on the psychophysiological and memory response of soldiers taking into consideration experience, the use of nocturne vision systems and previous combat actions on the psychophysiological response. Seventy participants were recruited and divided in four groups, three experimental groups with different experimental conditions, SNFV (Soldiers No-Fire Night-Vision), SFV (Soldiers Fire Night-Vision), SNFNV (Soldiers No-Fire No Night-Vision), and one control group, CNFV (Control No-Fire Night-Vision). We analyzed modifications in psychophysiological and memory response pre and post an underground operation. The underground operation produced a significant increase (p < 0.05) in blood lactate, blood oxygen saturation, rated perceived exertion, heart rate, cognitive and somatic anxiety and sympathetic modulation in all groups. Groups with higher stress values scored higher incorrect items in the memory post mission questionnaire. The higher psychophysiological activation correlated positively with cognitive impairment and lower memory. We concluded that an underground operation produced an increase in psychophysiological activation and a negative effect on memory, being modulated by previous training and experience. The lack of special equipment as night vision systems in underground operations induced similar stress response than prior combat actions, decreasing conciseness of time.
本研究旨在分析地下作业对士兵的心理生理和记忆反应的影响，同时考虑经验、夜视系统的使用以及先前的战斗行动对心理生理反应的影响。招募了 70 名参与者，并将其分为四个组，三个实验组具有不同的实验条件，即 SNFV（士兵无射击夜间视觉）、SFV（士兵射击夜间视觉）、SNFNV（士兵无射击无夜间视觉），以及一个对照组 CNFV（控制无射击夜间视觉）。我们分析了地下作业前后心理生理和记忆反应的变化。地下作业导致所有组的血乳酸、血氧饱和度、主观用力程度评分、心率、认知和躯体焦虑以及交感神经调节均显著增加（p < 0.05）。应激值较高的组在任务后记忆问卷中错误回答的项目更多。较高的心理生理激活与认知障碍和记忆力下降呈正相关。我们得出结论，地下作业会引起心理生理激活增加，并对记忆产生负面影响，而先前的训练和经验会对此进行调节。在地下作业中缺乏特殊设备（如夜视系统）会引起与先前战斗行动相似的应激反应，从而缩短时间的紧迫感。
