Newborns' Brains and Bodies React to Music Differently, Study Finds

A recent study published in the journal eLife indicates that while babies process musical patterns very early in development, their physical coordination with a musical beat takes significantly longer to emerge. These findings illustrate the journey of human musicality from simple auditory reception to active physical engagement throughout the first year of life.

Musicality encompasses two primary aspects: a sensory component for perceiving musical structures and a motor component for coordinating bodily movements with rhythms. Although the development of the sensory component is well-documented, with infants showing sensitivity to basic musical regularities from a young age, the physical response to music in early childhood has been less explored. To address this gap, researchers from the Italian Institute of Technology and the University of Vienna, supported by a European Research Council Starting Grant, investigated brain activity and spontaneous body movements in infants under one year old. They compared infants' reactions to organized music versus scrambled versions of the same songs, also examining the effects of different pitches. The study involved 79 full-term infants across three age groups (3, 6, and 12 months) and a control group of adults. Brain activity was measured using electroencephalography (EEG), and body movements were tracked with video cameras and specialized software. The lead researcher, Quynh Trinh Nguyen, emphasized the importance of understanding these early abilities, noting that music and movement are crucial for infant communication and bonding.

The study's results revealed distinct developmental timelines for music perception and physical coordination. Brain data showed that infants across all age groups had stronger neural responses to structured music compared to disorganized sounds, indicating an early capacity for processing musical patterns. However, significant differences in movement in response to music only appeared in 12-month-old infants, who showed specific upper-body motions like rocking and swaying when listening to structured music. Crucially, at no age did infants' movements synchronize with the beat, suggesting that the ability to coordinate movement with music develops later. Regarding pitch, only 6-month-olds exhibited stronger brain responses to high-pitched music, though high-pitched music generally correlated with more spontaneous movements across all age groups. The researchers clarified that their findings describe natural developmental trajectories rather than offering advice for parents on how to enhance musical abilities. They also acknowledged methodological limitations, such as the cross-sectional design, the seated experimental setup, and the use of a limited range of musical stimuli, which did not allow for a clear distinction between responses to rhythm and melody. Future research aims to extend these observations beyond the first year of life, explore naturalistic contexts, and investigate the neural pathways linking hearing to movement.

This pioneering research illuminates the complex developmental journey of musicality, demonstrating that while the brain is primed to recognize musical patterns from a very young age, the physical embodiment of music through coordinated movement is a skill that unfolds gradually. These findings not only advance our understanding of infant development but also underscore the profound and multifaceted connection between humans and music, encouraging further exploration into how these intrinsic capacities shape our interactions with the world.