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Published on: September 6, 2017
EEG functional connectivity in term age extremely low birth weight infants
Philip G Grieve1, Joseph R Isler, Asya Izraelit
1Department of Pediatrics, Columbia University, USA.
Summary
Extremely low birth weight (ELBW) infants show distinct patterns of brainwave connectivity at term age. These differences in electrocortical synchrony may indicate future cortical development variations.
Area of Science:
- Neuroscience
- Developmental Pediatrics
- Medical Imaging
Background:
- Extremely low birth weight (ELBW) infants face risks for neurodevelopmental complications.
- Electrocortical functional connectivity is a key indicator of brain development.
Purpose of the Study:
- To investigate regional differences in electrocortical functional connectivity between ELBW infants and typically developing full-term infants at term post-menstrual age.
Main Methods:
- Collected 128-lead EEG data during sleep from 8 ELBW infants and 8 full-term infants.
- Analyzed regional spectral power and coherence in the EEG data.
Main Results:
- No significant differences in EEG power were observed between the groups.
- ELBW infants exhibited reduced interhemispheric and intrahemispheric coherence in specific frequency bands (1-12Hz) and regions.
- Increased interhemispheric coherence was noted in occipital regions (24-50Hz) in ELBW infants.
Conclusions:
- ELBW infants demonstrate regional variations in EEG functional connectivity compared to term infants.
- These distinct spatial patterns of electrocortical synchrony may predict future cortical structural alterations.
