Frontal EEG asymmetry and later behavior vulnerability in infants with congenital visual impairment

O'Reilly, Michelle A., Bathelt, Joe, Sakkalou, Elena, Sakki, Hanna, Salt, Alison T., Dale, Naomi J. and de Haan, Michelle (2017) Frontal EEG asymmetry and later behavior vulnerability in infants with congenital visual impairment. Clinical Neurophysiology, 128 (11). pp. 2191-2199. ISSN 1872-8952

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OBJECTIVE: Young children with congenital visual impairment (VI) are at increased risk of behavioral vulnerabilities. Studies on 'at risk' populations suggest that frontal EEG asymmetry may be associated with behavioral risk. We investigated frontal asymmetry at 1year (Time 1), behavior at 2years (Time 2) and their longitudinal associations within a sample of infants with VI. Frontal asymmetry in the VI sample at 1year was also compared cross-sectionally to an age-matched typically sighted (TS) group. METHODS: At Time 1, 22 infants with VI and 10 TS infants underwent 128-channel EEG recording. Frontal asymmetry ratios were calculated from power spectral density values in the alpha frequency band. At Time 2, Achenbach Child Behavior Checklist data was obtained for the VI sample. RESULTS: 63.6% of the VI sample and 50% of the TS sample showed left frontal asymmetry; no significant difference in frontal asymmetry was found between the two groups. 22.7% of the VI sample had subclinical to clinical range 'internalizing' behavior difficulties. Greater left frontal asymmetry at one year was significantly associated with greater emotionally reactive scores at two years within the VI sample (r=0.50, p=0.02). CONCLUSIONS: Left frontal asymmetry correlates with later behavior risk within this vulnerable population. SIGNIFICANCE: These findings make an important first contribution regarding the utility of frontal EEG asymmetry as a method to investigate risk in infants with VI.

Item Type: Journal Article
Additional Information: A freely accessible copy of the author's manuscript is available through UCL's repository :
Keywords: Frontal EEG asymmetry, Visual impairment, Vision, Vision disorders, Behavior, Infancy, Children
Faculty: ARCHIVED Faculty of Science & Technology (until September 2018)
Depositing User: Lisa Blanshard
Date Deposited: 26 Feb 2020 17:07
Last Modified: 09 Sep 2021 16:11

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