The autonomic nervous system activity and mood ratings of 12 women were studied 6 days a week for a complete menstrual cycle. The daily procedure consisted of a resting period, a series of 5 mild tones, time estimation (TE), and reaction time (RT) trials, and a final resting period. Significant increase in heart rate (HR), respiration rate, and body temperature, and a significant decrease in resting skin conductance (SC) were found during the luteal phase. During the ovulatory phase there were significant increases in autonomic responsivity, as shown by greater amplitude of SC response in the TE and RT situations as well as in faster SC drop‐rate and greater HR variability. All of these autonomic variability measures coincided with a significant peak in feelings of elation and vigor. Significant age effects were that older women had higher basal body temperatures, less marked HR variability, and tended to have lower levels of SC, particularly in the luteal phase of the cycle. The results are discussed in terms of the psychophysiological effects of estrogen and progesterone.

Postnatal depression was investigated by the antenatal screening of a sample of women for factors that might be predictive of later disturbance. The women were assessed when they were 36 weeks pregnant on anxiety, hostility, and locus of control. Predictions were tested by assessing depression 6 weeks after birth. Both high anxiety and high hostility were positively associated with postnatal depression. Intropunitiveness was not significantly related to subsequent depression. The most depressed women were those who had been the more extrapunitive as well as the more hostile. Women who perceived themselves as less in control of their lives were likely to rate high on depression postnatally, as were younger women. There were indications that some women may have been experiencing depression before the birth. Depression was not significantly associated with parity, gravidity, race, social class or marital status.

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Forty-five pregnant women rated themselves for hostility, depression and anxiety. Maternal and foetal heart rates were recorded while they listened to a tape through headphones. The foetuses of anxious mothers showed pronounced responses to certain taped stimuli but this effect was not found for mothers with high hostility or depression scores.