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EEG Biomarkers in Children and Adolescents With Feeding and Eating Disorders: Current Evidence and Future Directions

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DOI

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  2. Common Genetic Variation and Age of Onset of Anorexia Nervosa

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  3. The impact of anorexia nervosa and BMI polygenic risk on childhood growth: A 20-year longitudinal population-based study

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  4. Parental feeding and childhood genetic risk for obesity: exploring hypothetical interventions with causal inference methods

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  5. Editorial statement

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Introduction: Electroencephalography (EEG) represents a powerful tool to detect abnormal neural dynamics in child and adolescent psychiatry. Feeding and Eating Disorders (FEDs), such as anorexia nervosa (AN), bulimia nervosa (BN), binge eating disorder (BED), and avoidant restrictive food intake disorder (ARFID) onset in childhood and adolescence. EEG has rarely been used to examine cortical brain activity in children and adolescents with FEDs. This review aims to summarize EEG findings in FEDs amongst children and adolescents, and to highlight areas deserving further research. Methods: We searched the literature for EEG studies on children and adolescents with FEDs using Google Scholar, PsycINFO, Medline, and PubMed. Results: Twelve studies were identified, the majority focusing on AN (N = 10). The identified studies suggest reduced action monitoring control (preparatory waves, N200, P300), specific perceptual-cognitive styles to body/face perception (late positive potentials/early posterior negativity), as well as fundamental changes in posterior theta oscillations in AN. Behavioral traits of BN/BED (i.e., loss of control eating, emotional eating), and AN seem to be associated with an increased attentional reactivity (P300) to visual food stimuli. Conclusion: Electroencephalography research in children and adolescents with FEDs is limited and mostly focused on AN. While EEG abnormalities seem consistent with a reduced top-down control and attentional allocation deficits in AN, altered attention specific to food cues emerges across FEDs. Overcoming conventional EEG analyses, and investigating spatial properties (i.e., electrical neuroimaging), will enhance our understanding of FEDs neurobiology.

OriginalsprogEngelsk
Artikelnummer882358
TidsskriftFrontiers in Psychiatry
Vol/bind13
ISSN1664-0640
DOI
StatusUdgivet - 8 apr. 2022
Eksternt udgivetJa

Bibliografisk note

Funding Information:
Open access funding provided by University of Geneva.

Funding Information:
This work was supported by the Foundation Gertrude von Meissner and the Fondation Ernst et Lucie Schmidheiny (to CB and NM).

Publisher Copyright:
Copyright © 2022 Berchio, Cambi, Pappaianni and Micali.

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