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Brain Waves in Premature Babies

Hospital or Research FacilityWednesday, July 15, 2026

Premature birth can affect how brain networks develop and function, especially when it comes to theta oscillations. These oscillations play a crucial role in the early development of brain networks. Researchers have been studying the brain activity of premature and full-term infants to understand how their brains mature.

They used a technique called high-density EEG to record the brain activity of infants during active sleep at two different ages: when they were supposed to be born (term-equivalent age) and two months later. The results showed that between these two ages, the brain activity of both premature and full-term infants changed in similar ways.

The study also found that at the term-equivalent age, the brain activity was stronger in the front of the brain than in the back. However, by two months later, this changed because the brain activity in the back of the brain increased significantly.

One of the key findings was that premature infants with certain risk factors, such as being male, having a lower gestational age, being small for their gestational age, or needing invasive ventilation, had more variability in their brain activity.

The researchers also used diffusion MRI to look at the brain microstructure of premature infants. They found that those with more advanced cortical maturation had higher theta power. This suggests that EEG spectral parameterization can be used to understand early brain maturation and vulnerabilities associated with prematurity.

Understanding how the brains of premature infants develop is crucial for identifying potential problems early on. This can help doctors and researchers find ways to support the development of premature infants and improve their outcomes.

The brains of premature infants are more vulnerable to injury and may not develop as quickly as those of full-term infants. Studying the brain activity of premature infants can provide valuable insights into how their brains mature and how to support their development.

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