Related Experiment Video
Updated: Mar 29, 2026

Author Spotlight: Deciphering Neural Circuit Formation from Two-Photon Microscopy and Single Neuron Imaging
Published on: November 21, 2023
Connecting the brain of the child from synapses to screen-based activity
1Department of Women's and Children's Health, Karolinska Institute and Astrid Lindgren Children's Hospital, Stockholm, Sweden.
Insights
Early brain development relies on natural sensory interactions. Digital devices do not replace crucial parent-infant multisensory engagement for optimal social brain development in young children.
Area of Science:
- Neuroscience
- Developmental Psychology
- Pediatrics
Background:
- Brain connectome construction involves neurogenesis, arborisation, and synaptogenesis during fetal development.
- Postnatal development refines neuronal connections through spontaneous activity and external sensory input.
- Social brain development is critically dependent on early interaction, especially with parents.
Purpose of the Study:
- To explore the role of direct multisensory interaction in early childhood brain development.
- To compare the impact of natural interaction versus digital media on infant social brain development.
- To investigate the developmental effects of screen time in children under two years of age.
Main Methods:
- Observational analysis of infant developmental milestones.
- Review of neurodevelopmental processes including imitation and phoneme acquisition.
- Comparative assessment of sensory input from direct interaction versus digital devices.
Main Results:
- Infants exhibit early imitation and face recognition abilities.
- Early language acquisition is enhanced by parent-directed "motherese" speech.
- Digital media interaction shows limited benefits for children under two compared to direct multisensory experiences.
Conclusions:
- Direct, multisensory parent-infant interaction is vital for optimal social brain development.
- External digital stimulation does not substitute for the benefits of real-world interaction in early development.
- Screen time may have different developmental implications for children under two compared to older age groups.
Abstract:
The connectome of the brain is constructed during foetal life by neurogenesis, arborisation of the neurons and synaptogenesis. The optimal neuronal connections are selected by endogenous spontaneous neuronal activity and sensory input from the external world, particularly after birth. The development of the social brain depends on interaction, particularly with the parents. Infants start to imitate adults from birth and soon learn to recognise faces. They also absorb phonemes like magnets, particularly if they are sitting on their mother's lap and she is speaking motherese. External coupling of the brain to TV, DVDs, iPads and smartphones cannot replace this direct multisensory interaction and does not seem to have the same advantageous effects for children under two years of age that it may have for older children.
Related Concept Videos
Information Processing Approach
Integration of Synaptic Events
Neuroplasticity
Three Developmental Domains
Physical Development
Physical processes, also known as maturation, encompass the biological changes that occur across an individual's life. These changes begin with genetic inheritance and continue through various stages, including growth in height and weight,...
Neuronal Communication
Cognitive Development During Adolescence

