Mothers who experienced inter-partner psychological abuse but who frequently and affectionately stroked their infants were significantly less depressed than mothers who experienced partner psychological abuse but who did not stroke their infants often. (Sharp H, Pickles A, Meaney M, Marshall K, Tibu F, et al. (2012) Frequency of Infant Stroking Reported by Mothers Moderates the Effect of Prenatal Depression on Infant Behavioural and Physiological Outcomes. PLoS ONE 7(10): e45446. doi:10.1371/journal.pone.0045446).