The Influence of the Emotional State of the Mother During Mental Stress vs.Relaxation on Pregnant Women and Fetuses : A Preliminary Study

本研究的问题是：(1)母亲的情绪状态（色词Stroop冲突测试法和引导意象放松法的心理压力）是否会因自主神经活动的波动而影响孕妇和胎儿？(2)母亲在怀孕期间对胎儿运动的反应与出生最初几天对母婴互动的敏感性是否相关？结果：(1)-1对49例32 ~ 41孕周无并发症的单胎妊娠妇女进行了母体心率变异性（MHRV）的功率谱分析。卧床休息20分钟后，比较休息、精神紧张和放松3种状态下2分钟MHRV的高频（HF）和低频（LF）分量。与精神应激状态相比，松弛状态下的HF比值显著升高，LF/HF显著降低。(1)-2比较32 ~ 41孕周6例胎儿在3分钟的两种状态（精神紧张和放松）下的多普勒胎动计数。在精神紧张状态下，胎儿运动计数明显低于精神紧张状态。(2)在个案研究中，母亲在怀孕期间对胎儿运动的敏感性可能会影响生命最初几天的母婴互动。总之，母亲在怀孕期间的情绪变化可能会影响胎儿的反应。

Questions of this research are :(1) Can the emotional states of the mother (the mental stress of the Color Words Stroop Conflict test method vs.the Relaxation of Guided Imagery method) influence pregnant women and fetuses due to fluctuations in Autonomic nerve activities?(2) Are the maternal responsiveness to fetal movements during pregnancy and the sensitivity to mother-infant interactions during the first days of life related?Results :(1)-1 The power spectral analysis of maternal heart rate variability (MHRV) was performed in 49 women with uncomplicated singleton pregnancies at 32 to 41 gestational weeks.After 20 minutes' of bed rest, the high-frequency (HF) and low-frequency (LF) components of the MHRV were compared in 3 states (rest, mental stress and relaxation) for 2 minutes. In the state of relaxation, the HF ratio was significantly higher and the LF/HF was lower than in the state of mental stress.(1)-2 The Doppler-detected fetal movement counts were compared in 2 states (mental stress and relaxation) for 3 minutes in 6 fetuses at 32 to 41 gestational weeks.In the state of relaxation, the fetal movement counts were lower than that during mental stress.(2) In case studies, maternal sensitivity to fetal movements during pregnancy may influence the mother-infant interactions during the first days of life.In conclusion, emotional change of the mother during pregnancy may influence fetal reactions.