A Randomized Controlled Trial to Improve Mother-Infant Synchrony Among Women With Childhood Adversity

Study Summary

Childhood adversity affects almost two-thirds of the US population, is a major risk factor for the leading causes of disease and increases US economic health burdens. Childhood adversity also alters biologic systems, such as the oxytocin hormone, that can affect attachment behavior. This innovative study has the potential to advance science and improve mother-infant interaction by testing an early life, home-based, multisensory behavioral intervention (called ATVV), targeting the oxytocin system, to promote synchronous early mother-infant interaction, especially critical for mothers who have experienced childhood adversity. This two-group randomized clinical trial will test the ATVV's effect on oxytocin system function and quality of mother-infant interaction. The investigators will enroll 250 first-time healthy mothers carrying a single baby who have a history of childhood adversity, and obtain baseline data in their third trimester of pregnancy. Soon after birth (before hospital discharge), mothers (and babies) who continue to be eligible are randomized into the intervention group and taught to give ATVV daily for 3 months, or randomized into the Attention Control education group and taught safe infant care. After birth, the investigators check-in frequently with mothers through weekly phone calls. There are 3 study visits at 1, 2 and 3 months after birth that include survey questions and collection of maternal blood and infant saliva. Mothers and babies are also video-recorded at 3 months after birth for 4 minutes to assess mother-infant interaction. The investigators follow-up with a phone call at 6 months after birth. While both groups will benefit from the content and attention the investigators give mothers, the investigators hypothesize that, compared to the education group, mothers and infants in the intervention group will have improved oxytocin system function and more synchronous mother-infant interaction.

Primary Outcome

Video-recordings of mothers freely interacting with their infant were micro-coded second by second for the number of seconds of mother-infant synchrony over 180 seconds. Behaviors are categorized into mutually exclusive codes. The most robust behavior categories for mothers and infants (individually and in synchrony) are gaze and affect. Maternal gaze consisted of mother's gaze to infant's face, to infant's body, to object or environment, and gaze aversion. Infant gaze consisted of gaze to mothe

Interventions

• BEHAVIORAL Attention control
• BEHAVIORAL ATVV