Abnormalities in the EEG power spectrum in bulimia nervosa, binge-eating disorder, and obesity: A systematic review.
Eur Eat Disord Rev
; 27(2): 124-136, 2019 03.
Article
em En
| MEDLINE
| ID: mdl-30358028
ABSTRACT
To provide a basis for electroencephalography (EEG) neurofeedback protocols for bulimia nervosa (BN), binge-eating disorder (BED), and obesity, this systematic review investigates alterations in EEG-measured brain activity, specifically frequency bands. A systematic literature search with predefined search terms yielded N = 7 studies meeting the inclusion criteria. The risk of bias was assessed for all studies. In resting-state EEG, the beta activity was elevated in fronto-central regions in individuals with obesity and co-morbid BED. In food-cue conditions, both obese individuals with and without BED showed increased beta activity, suggesting increased awareness of food cues and a heightened attentional focus towards food stimuli. The level of beta activity was positively correlated with eating disorder psychopathology in resting and food-cue conditions. In individuals with BN, there was no evidence for altered EEG spectral power. The results indicate specific alterations in EEG-based brain activity in individuals with BED and obesity. More high-quality studies are needed to further confirm these findings and to transfer them into EEG-based interventions.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bulimia Nervosa
/
Transtorno da Compulsão Alimentar
/
Obesidade
Tipo de estudo:
Clinical_trials
/
Systematic_reviews
Limite:
Humans
Idioma:
En
Revista:
Eur Eat Disord Rev
Assunto da revista:
CIENCIAS DA NUTRICAO
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Alemanha