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Updated: Jun 13, 2026
Preterm EEG: A Multimodal Neurophysiological Protocol
Published on: February 18, 2012
EEG Profile Associated with the Developmental Outcomes of Preschool Children Born Very Preterm
Yuliang Wang1,2, Ouyang Guang3, Tatia M C Lee2
1Department of Paediatrics and Adolescent Medicine, University of Hong Kong, Hong Kong, Hong Kong.
Insights
Preschool children born preterm show altered brain activity, including slower neural oscillations and increased background brain activity. These quantitative EEG (qEEG) findings suggest potential delays in brain maturation and less efficient neural connections in preterm individuals.
Area of Science:
- Neuroscience
- Developmental Pediatrics
- Quantitative Electroencephalography (qEEG)
Background:
- Preterm birth is associated with developmental delays and cognitive deficits in preschool children.
- The specific neurocognitive mechanisms underlying these deficits in preterm children require further investigation.
Purpose of the Study:
- To compare quantitative EEG (qEEG) profiles and cognitive function between preterm and full-term children aged 4 to 6 years.
- To explore the neurophysiological differences in brain activity between these groups.
Main Methods:
- Cognitive abilities were assessed using the Griffiths Development Scales-Chinese (GDS-C).
- Resting-state EEG data were collected and analyzed using spectrum analysis, including band power, and fitting oscillations and one-over-f (FOOOF) to determine aperiodic components (exponent and offset) and dominant oscillatory peak center frequency.
- The study included 28 preterm children and 17 age-matched full-term children.
Main Results:
- Preterm children exhibited significantly higher aperiodic offset and exponent compared to full-term children.
- A slower center frequency of the dominant oscillatory peak and increased delta and theta band power were observed in preterm children.
- These qEEG differences were evident in preschool-aged children.
Conclusions:
- Preschool children born preterm demonstrate distinct qEEG profiles characterized by elevated aperiodic activity and slower neural oscillations.
- These findings suggest potential indicators of less efficient functional neural connections and delayed brain maturation in preterm-born children.
- Quantitative EEG analysis provides valuable insights into the neurodevelopmental trajectories of preterm individuals.
Abstract:
BackgroundPreschool children born preterm are at risk of developmental delay and cognitive deficits. However, the neurocognitive underpinnings of the cognitive deficits in preterm children remain unclear.AimsThis study aimed to compare quantitative EEG (qEEG) profiles and cognitive function between preterm and full-term children aged 4 to 6 years.MethodChildren's cognitive ability was assessed using the Griffiths Development Scales-Chinese (GDS-C). Resting-state EEG was recorded, and spectrum analysis was conducted. In addition to conventional band power analysis, aperiodic components (exponent and offset) and center frequency of the dominant oscillatory peak were calculated by fitting oscillations and one-over-f (FOOOF).ResultsThe study recruited 28 preterm-born children (15 girls, mean age = 62.14 months, SD = 7.31) and17 age-matched full-term children (7 girls, mean age = 59.8 months, SD = 8.49) Preterm children showed significantly elevated aperiodic offset and exponent. They also exhibited significantly slower center frequency of the dominant oscillatory peak and higher delta and theta band power compared to full-term children.ConclusionPreterm children demonstrated elevated aperiodic offset and exponent and slower center frequency of the dominant oscillatory peak compared to full-term children, at preschool age. These findings suggest that preschool children born preterm may exhibit less efficient functional neural connections and delayed brain maturation.
