No impact of parental singing during the neonatal period on cognition in preterm-born children at 2-3 years.

Aim: Studies examining the long-term effects of neonatal music interventions on the cognition of children born preterm are scarce. We investigated whether a parental singing intervention before term age improves cognitive and language skills in preterm-born children.

Methods: In this longitudinal, two-country Singing Kangaroo, randomised controlled trial, 74 preterm infants were allocated to a singing intervention or control group. A certified music therapist supported parents of 48 infants in the intervention group to sing or hum during daily skin-to-skin care (Kangaroo care) from neonatal care until term age. Parents of 26 infants in the control group conducted standard Kangaroo care. At 2-3 years of corrected age, the cognitive and language skills were assessed with the Bayley Scales of Infant and Toddler Development, Third Edition.

Results: There were no significant differences in cognitive and language skills between the intervention and control groups at the follow-up. No associations between the amount of singing and the cognitive and language scores were found.

Conclusion: Parental singing intervention during the neonatal period, previously shown to have some beneficial short-term effects on auditory cortical response in preterm infants at term age, showed no significant long-term effects on cognition or language at 2-3 years of corrected age.