Heart-to-heart: Infant heart rate at 3 months is linked to infant-directed speech, mother–infant interaction, and later language outcomes
Endevelt-Shapira, Bosseler, Zhao, Mizrahi, Meltzoff, Kuhl
Frontiers in Human Neuroscience
Introduction: Previous studies underscore the importance of speech input, particularly infant-directed speech (IDS) during one-on-one (1:1) parent–infant interaction, for child language development. We hypothesize that infants’ attention to speech input,
