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Updated: Mar 26, 2026
Cortical Source Analysis of High-Density EEG Recordings in Children
Published on: June 30, 2014
[Brain Bioelectrical Activity in Early Childhood Specific for Children Living in Orphanages]
Insights
Institutionalized children exhibit distinct electroencephalogram (EEG) patterns, including altered alpha and theta rhythms, suggesting impaired central nervous system (CNS) development due to early social deprivation.
Area of Science:
- Neuroscience
- Developmental Psychology
- Pediatrics
Context:
- Early social deprivation significantly impacts child development.
- Understanding neurophysiological markers in institutionalized children is crucial.
Purpose:
- To investigate electroencephalogram (EEG) oscillation properties in institutionalized versus non-institutionalized children.
- To identify specific EEG alterations associated with institutionalization.
Summary:
- EEG recordings during visual fixation were analyzed in 2-3.5-year-old children from an orphanage and a control group.
- Institutionalized children displayed higher relative power (RP) of alpha rhythm and lower RP of theta rhythm across multiple brain derivations.
- Decreased RP of beta and gamma rhythms were observed in the left anterior temporal area of institutionalized children.
Impact:
- Findings suggest impaired central nervous system (CNS) development, particularly in the limbic system and neocortex, in institutionalized children.
- Results highlight the neurophysiological consequences of early social deprivation.
- This research provides objective EEG markers for developmental assessment in vulnerable populations.
Abstract:
We investigated whether the electroencephalogram (EEG) during visual fixation in institutionalized children shows the altered oscillation properties. EEG was recorded in the "eyes open" situation with visual attention fixed on a cartoon in 51 2-3.5 years old children living in Simferopol orphanage, Crimea and in 53 age-matched children living in families. Oscillation properties were measured using the relative power (RP) indices of theta-, alpha-, beta- and gamma-rhythms. Institutionalized children showed higher RP of alpha rhythm in seven loci (frontal polar, anterior temporal, posterior temporal and left occipital derivations), lower RP of theta rhythm in eight loci (frontal polar, frontal, anterior temporal and posterior temporal derivations). In addition, RP of beta- and gamma-rhythms were decreased in the left anterior temporal area. These results suggest that institutionalized children show impaired development of CNS, in particular development of limbic system and neocortex, probably are caused by early social deprivation.
