Sensitive parenting early in life sets children up for healthy development, and this type of parenting draws on the parent's compassion and physiological regulation. Loving-kindness meditations (LKM) increase compassion and reduce physiological responses to stressors and so may support sensitive parenting. The current study tested the effects of a LKM on parent sensitivity and salivary alpha amylase (sAA) during a parent-child interaction. One hundred and thirty-six parents (114 mothers, 22 fathers) of toddlers (18-36 months, M = 28.85 months, SD = 5.13) participated in an online survey and were randomly assigned to listen to either a LKM, focused-imagery audio, or podcast during a video call before engaging in a play-based interaction with their toddler. Parent sAA was collected from parents at five points throughout the video call. LKM did not significantly increase parent sensitivity (B = 0.06, p = 0.86)
however, there was limited variability in sensitivity in this sample (M = 6.01, SD = 0.89). The LKM did affect sAA activity (B = - 0.66, p <
0.05) such that parents in the LKM group gradually decreased sympathetic activity across the research session, whereas the podcast group increased sAA levels after the parent-child interaction. Overall, these findings suggest that engaging in compassion and self-compassion can change the pattern of stress physiology in parents of toddlers while parenting.