扫雷次声场对艇员心理的影响

目的探讨扫雷艇次声扫雷声场对艇员心理的影响.方法实验艇在某海域进行次声扫雷作业,同型号的对照艇在同一海域作业,除不启动次声扫雷具外,其余操作相同.增设岸勤部队作为空白对照组.采用数字记忆、注意广度、两位数表测验和情感状态量表(POMS)对两艇艇员在实验前后各进行一次测验,对岸勤组进行一次测验.结果实验前两艇艇员各项心理指标的差异无显著性(P＞0.05),但是实验艇和对照艇艇员的两位数表效率分别为(31.2±11.8、36.4±14.5),明显低于岸勤组(45.8±13.9),差异有显著性(P＜0.05);POMS"愤怒-敌意"、"疲惫-惰性"和"困惑-迷茫"(分别为15.5±6.4、18.3±6.8;12.1±5.0、12.3±4.9;11.6±4.4、12.5±4.8)均比岸勤组(13.9±7.0、7.6±4.1、8.2±4.3)高,"有力-好动"(15.1±6.5、15.0±5.9)比岸勤组(19.7±4.7)低,差异均有显著性(P＜0.05或P＜0.01).实验后,实验艇艇员的数字记忆成绩(14.5±5.0)明显低于对照艇(17.3±4.8),POMS"有力-好动"、"疲惫-惰性"得分(12.2±5.8、15.8±6.2)与对照艇(16.5±4.6、11.3±5.1)的差异均有显著性(P＜0.05).结论扫雷次声场可损害艇员的心理健康水平及部分神经行为功能,但这种损害是否可逆还需进一步研究.

The psychological effect of minesweeping infrasonic field

OBJECTIVE: To investigate the effect of infrasonic field of minesweeper on psychology of minesweeper crews. METHODS: An experimental ship was selected to conduct infrasonic minesweeping, a control ship of the same type was selected to operate likewise with the infrasound generator turned off, and another group of coast-servicemen was chosen as blank control. Attention-span test, digit memory test, two-digital numbers list and profile of mood states (POMS) were used to test the ship crews and coast-servicemen. RESULTS: There were no significant differences in psychological parameters between the two ship crews before the experiment. But the scores of two-digit figures list in ship crews were significant lower than that in coast-servicemen, (31.2 +/- 11.8, 36.4 +/- 14.5 respectively vs 45.8 +/- 13.9, P < 0.05). POMS showed that the scores of anger-hostility, fatigue-inertia, and confusion-bewilderment in both ship crew groups (15.5 +/- 6.4, 18.3 +/- 6.8), (12.1 +/- 5.0,12.3 +/- 4.9), (11.6 +/- 4.4, 12.5 +/- 4.8), respectively] were higher than those in coast-servicemen (13.9 +/- 7.0, 7.6 +/- 4.1, 8.2 +/- 4.3, respectively, P < 0.05 or 0.01), while vigor-activity in experimental group (15.0 +/- 5.9) was lower than that in coast-servicemen (19.7 +/- 4.7). After the experiment, the scores of experimental crews in digit memory test (14.5 +/- 5.0), vigor-activity (12.2 +/- 5.8), fatigue-inertia (15.8 +/- 6.2) were significantly different from those of control crews (17.3 +/- 4.8, 16.5 +/- 4.6, 11.3 +/- 5.1). CONCLUSIONS: The infrasonic field from minesweeper may injure the crew's psychological health and some neurobehavioral function.