Maternal Touch During Mother–Infant Interactions in Infants With and Without an Elevated Likelihood for Autism: Links With Symptom-Level Difficulties of Maternal Psychological Stress

Infants at elevated likelihood for autism (EL infants) have varied developmental outcomes. This exposes parents to a unique parenting journey, and in some, heightened psychological stress. This study investigated how maternal psychological stress is linked to variations in mother–infant interactions, specifically touch. We focused on mothers of EL infants, including infants with an older autistic sibling and infants born preterm (< 30 weeks), as well as mothers of infants at typical likelihood for autism (TL infants). At 10 months, maternal touch was coded during mother–infant interactions (n = 100) and psychological stress was measured using the Brief Symptom Inventory (n = 108). Results showed that mothers of sibling infants (n = 44) reported higher depressive symptoms compared to mothers of TL infants (n = 22). Mothers of preterm infants (n = 39) used less affectionate and caregiving touch and had shorter total touch duration, compared to mothers of TL infants (n = 20), and to a lesser extent, mothers of sibling infants (n = 41). In addition, mothers of sibling infants exhibited more high-intensity touch than both mothers of preterm and TL infants. Notably, increased depressive symptoms were associated with decreased touch duration in mothers of sibling (n = 41) and preterm infants (n = 39) only. These findings underscore the complex relationship between maternal depressive symptoms and maternal use of touch.