[ 3. Psychophysiological Evaluation of Changes in Stress-sensitivity of Female Undergraduates During Menstrual Cycle

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1 292 Chinese Journal of Clinical Psychology Vol. 20 No (1. [ ] ; 2. [ ] ; ) : 29 : ; ; ; : ; ; ; ; : R395.1 : A : (2012) Psychophysiological Evaluation of Changes in Stress-sensitivity of Female Undergraduates During Menstrual Cycle ZHANG Wen-juan ZHOU Ren-lai WANG Ying Beijing Key Lab of Applied Experimental Psychology [School of PsychologyBeijing Normal University]Beijing China Abstract Objective: To assess changes of stress-sensitivity of female undergraduates during different phases of menstrual cycle. Methods: 29 normally-cycling female undergraduates participated in a resting mental arithmetic test in premenstrual phase (luteal phase) postmenstrual phase (follicular phase) and ovulation of their menstrual cycle. Results: Changes of heart rate was the most significant. Heart rate (HR) in ovulation was significantly greater than that in premenstrual and postmenstrual phase. Despite HR of mental arithmetic was significantly greater than HR of resting in ovulation and postmenstrual phase there was no difference in premenstrual phase. Power spectral analysis of heart rate variability (HRV) only showed low-frequency (LF) component of resting was higher than LF of mental arithmetic. Galvanic Skin Response (GSR) of mental arithmetic was significantly greater than GSR of resting. Conclusion: Stress sensitivity of female undergraduates is the highest in premenstrual phase of menstrual cycle. Key words Menstrual cycle; Stress; Mental arithmetic; Heart rate; Heart rate variability [5] - - (stress-sensitivity) [6] [7] (HPA) [8- ( ) [1-3] 10] ( ) [4] (2011CB505101); (2009SC-3) ( 09-16); (2011-SYSKFKT03) : [10] [1112] [1314]

2 [81014] [1213] 1 [912] 1.1 [14] 117 :1 ; 2 [8-13] (PMS) [18] ;3 (TAI) (BDI);4 (EPQ);5 [ ] [12] (SCL-90) [15] (SD=1.57) (Heart rate variabilityhrv) (HF) : ( ) (LF) (84%21 ) 8%(2 ) 4%(1 ) ; [16] Sato [17] 1 2 1! " # $! " % 2 :EPQ EPQ ( ) ( ) ( ) 1-3 ( ) (Basal Body TemperatureBBT)

3 294 Chinese Journal of Clinical Psychology Vol. 20 No (SAS) (GSRumho;M±SDn=24) (SDS) :umho (SKT ;M±SDn=24) 16 (BIOPAC MP150) 5 DC 1Hz 250Hz 2 DC 10Hz 250 Hz (R ) (-) (+) Hz 35Hz 500Hz (HR/;M±SDn=24) (ms /HZ;M±SDn=24) AcqKnowledge4.0 SPSS16.0! 2.1 SAS SDS " 24 #! 4 SAS:F (246) =0.561P =0.575;SDS:F (246) = 0.133P= SAS SDS (M±SDn=24)

4 [21] 3( ) 3( ) : F (246)=14.485P<0.001η 2 p=0.386 P<0.001P<0.05 P=0.001 P Leicht [22] 0.05 F(246) =8P=0.001η 2 p=0.266 P 0.01 F (492) = 4.025P<0.01η 2 p=0.149 F(492) =5.46P<0.01;F(492) =21.54 P<0.001 (Frequency domain analysis) [19] (LF: HZ) (HF: HZ) 3( ) 3( ) (HF) (LF/HF) ( 0.1 ) [23] P 0.05 Sato (LF) F(246) =4.457P = [17] η 2 p= P<0.01;P< ( ) Ossewaarde [20] t P 0.05 [24]

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