Effects of infant and maternal sensory processing on infant fussing, crying, and sleep.

This study investigated the effects of infant and maternal sensory processing on sleep, fussing, and crying in a sample of 55 firstborn, 4- to 7-month-old infants and their mothers. Mothers completed self-report questionnaires to assess maternal and infant sensory processing styles and a 4-day diary of infant behavior, including sleep, fussing, and crying. Higher levels of infant Sensation Avoiding were associated with less sleep, more fussing, and more crying whereas higher levels of Sensory Sensitivity were associated with less sleep and more fussing. The positive association between infant Sensation Avoiding and crying was strengthened by lower levels of Low Registration in mothers. The effect of infant Sensory Sensitivity on reducing total sleep also was strengthened by lower levels of maternal Low Registration. Assessment of infant sensory processing as well as the moderating effect of maternal sensory processing on the relationship between infant sensory processing and infant regulatory capacities need to be considered when assessing and designing interventions for families in which infant regulation is problematic.