The emergence of functional architecture during early brain development

Area of Science:

• Neuroscience
• Developmental Biology
• Medical Imaging

Background:

• Early brain development involves intricate processes forming neural circuits.
• Genetic, epigenetic, and environmental factors shape neurodevelopmental trajectories.
• Critical period spans fetal and early postnatal stages, influencing lifelong brain function.

Purpose of the Study:

• To review functional magnetic resonance imaging (fMRI) studies on early brain network development.
• To contextualize network formation within embryonic and infant developmental processes.
• To examine risk factors impacting functional brain wiring.

Main Methods:

• Collated findings from neuroimaging studies, emphasizing functional MRI.
• Reviewed developmental processes from embryonic to early infancy.
• Discussed typical and atypical functional brain network development.

Main Results:

• The blueprint of adult brain organization is evident in the neonatal brain.
• Human brain architecture attributes detected in fetal brains from 24 weeks postconception.
• Functional brain network refinement is more dynamic than structural maturation postnatally.

Conclusions:

• Neuroimaging advances enhance understanding of brain network maturation.
• Early developmental adversity can significantly alter brain wiring trajectories.
• Insights are vital for understanding brain function, identifying at-risk infants, and developing neuroprotective strategies.