UNASSIGNED: 33 students with PMS and 24 healthy students participated in the emotion induction experiment, and were required to fill out self-report scales. Their salivary cortisol (SCort), skin conductivity level (SCL), heart rate variability (HRV), blood pressure (BP) and electroencephalogram (EEG) data were collected at the resting stage and 10-15 minutes after each video.
UNASSIGNED: Compared to healthy controls, students with PMS showed lower SCort level and higher VLF at rest, and no statistic difference in activities of ANS and HPA axis after emotional videos, but different results in EEG in all conditions. The decreases in SBP during angry video, SCort after angry and neutral videos, and increases in θ band power during sad video were moderately correlated with increases in PMS score. No intergroup differences were found in self-report emotions.
UNASSIGNED: Students with PMS had lower activity of HPA axis and possibly higher activity of PNS at rest, and different response patterns in CNS in all conditions. Several EEG frequencies, especially θ band, in specific encephalic regions during emotional videos, as well as declined HPA activities in dealing with angry and neutral stressors, in which γ activity in frontal lobe may play a role, showed moderate correlations with more severe PMS.
■33名PMS学生和24名健康学生参加了情绪诱导实验,并被要求填写自我报告量表。他们的唾液皮质醇(SCort),皮肤电导率水平(SCL),心率变异性(HRV),血压(BP)和脑电图(EEG)数据收集在休息阶段和每个视频后10-15分钟。
■与健康对照相比,患有PMS的学生在休息时表现出较低的SCort水平和较高的VLF,情感视频后ANS和HPA轴的活动没有统计差异,但是在所有情况下脑电图的结果都不同。愤怒视频期间SBP的下降,在愤怒和中立的视频之后,悲伤视频中θ波段功率的增加与PMS评分的增加呈中等相关。自我报告情绪没有发现组间差异。
■患有PMS的学生在休息时HPA轴的活性较低,PNS的活性可能较高,和中枢神经系统在所有条件下不同的反应模式。几个脑电图频率,特别是θ波段,在情感视频中的特定脑区,以及减少HPA在处理愤怒和中性压力源方面的活动,其中额叶的γ活动可能起作用,与更严重的PMS表现出中度相关性。