Objective: This study compared the crying behaviour of infants of depr
essed and non-depressed mothers at 3 and 6 months of age. Methodology:
Twenty-nine depressed and 44 non-depressed mothers, their infants and
partners participated in this study. Mothers were asked to complete 2
4-hour diaries of the amount their infants cried for 1 week. Results:
The diurnal variations in crying patterns of infants of depressed and
non-depressed mothers were not significantly different. However, infan
ts of depressed mothers were found to cry significantly more in total
per day than infants of nondepressed mothers at 3 months of age, but n
ot at 6 months. The results could not be explained by differences in i
nfant temperament. Conclusion: Maternal depression may be a contributo
ry factor to infant crying at 3 months of age.