Department of Psychology, Shanghai Normal University, Shanghai 200234, China; Department of Psychology, Nanjing University, Nanjing 210096, China.
Department of Psychology, Nanjing University, Nanjing 210096, China; Department of Psychology, Suzhou University of Science and Technology, Suzhou 215009, China.
Int J Psychophysiol. 2022 Nov;181:64-72. doi: 10.1016/j.ijpsycho.2022.08.007. Epub 2022 Aug 24.
Premenstrual syndrome is associated with altered spontaneous brain activity in the late luteal phase, but the fluctuation patterns of brain activity throughout the menstrual cycle have not been revealed. Furthermore, it is also unknown whether the altered spontaneous brain activity during the whole menstrual cycle is further associated with their habitual use of maladaptive emotion regulation strategies. Based on the two reasons, electroencephalogram data and cognitive emotion regulation questionnaire from 32 women with high premenstrual symptoms (HPMS) and 33 women with low premenstrual symptoms (LPMS) were measured in the late luteal and follicular phases. Delta power, theta power, beta power, and the slow/fast wave ratios (SW/FW, including theta/beta power ratio [TBR] and delta/beta power ratio [DBR]) were calculated using both fixed frequency bands and individually adjusted frequency bands (based on the individual alpha peak frequency). The results showed that for the frontal and central DBR, as assessed both with fixed and individualized frequency bands, there was no difference between the two phases of the LPMS group, whereas there was a difference between the two phases of the HPMS group with a higher DBR in the late luteal phase than in the follicular phase. Further correlation results revealed that for women with HPMS in the late luteal phase, the frontal and central DBR values, as assessed both with fixed and individualized frequency bands, were positively correlated with self-blame and rumination. Consequently, HPMS was characterized by a fluctuation across the menstrual cycle in the DBR, which was further associated with maladaptive emotion regulation.
经前期综合征与黄体晚期的自发性大脑活动改变有关，但整个月经周期中大脑活动的波动模式尚未揭示。此外，整个月经周期中改变的自发性大脑活动是否与习惯性使用适应不良的情绪调节策略进一步相关也不得而知。基于这两个原因，在黄体晚期和卵泡期测量了 32 名经前期症状高（HPMS）和 33 名经前期症状低（LPMS）的女性的脑电图数据和认知情绪调节问卷。使用固定频带和个体调整频带（基于个体α峰频率）计算了 delta 功率、theta 功率、beta 功率和慢/快波比（SW/FW，包括 theta/beta 功率比[TBR]和 delta/beta 功率比[DBR]）。结果表明，对于额叶和中央 DBR，无论是使用固定频带还是个体调整频带评估，LPMS 组两个阶段之间没有差异，而 HPMS 组两个阶段之间存在差异，黄体晚期的 DBR 高于卵泡期。进一步的相关结果表明，对于黄体晚期的 HPMS 女性，额叶和中央 DBR 值，无论是使用固定频带还是个体调整频带评估，均与自责和反刍呈正相关。因此，HPMS 的特征是 DBR 在月经周期中波动，这与适应不良的情绪调节进一步相关。
