Eeg in adolescent anorexia nervosa: Impact of refeeding and weight gain

Hatch, Ainslie; Madden, Sloane; Kohn, Michael; Clarke, Simon; Touyz, Stephen; Gordon, Evian; Williams, Leanne M.

doi:10.1002/eat.20777

Cited by 23 publications

(33 citation statements)

References 35 publications

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“…Our findings are different for other studies for EEG in anorectic girls which mainly confirmed the dominance of beta brain waves and hyperarousal due to anxiety [28][29][30][31].…”

Section: Discussioncontrasting

confidence: 99%

Anorexia: Anormal Phobia of Normal Weight

Pop‐Jordanova

Zorčec²,

Demerdzieva

2017

Prilozi

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Anorexia nervosa is a disorder of feeding behavior associated with distortion of body image, mood disturbance and a wide variety of hormonal and metabolic abnormalities. It is supposed that the disease could be the consequence of a combination of cultural-social, psychological and biological factors. Our study confirmed that anorexia mentalis is a serious, life threatening disorder which in our country appears earlier than it was expected and that is strongly related to environmental factors (family, school, fashion, society). We showed that specific personality traits are characteristic for both, young patients and mothers. Sublimation of emotional stress by exceptional performances, accompanied by food restrictive consumption together with hypersensitivity, oppositional behavior and aggression are specific for this disorder. High levels of self-imposed standards increase the risk for psychological distress, especially for eating disorder symptomatology. Both genders could be involved as patients. Boys must be especially followed for possible psychiatric manifestation. We confirmed that the biofeedback as additional therapeutic modality is very useful.

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“…Our findings are different for other studies for EEG in anorectic girls which mainly confirmed the dominance of beta brain waves and hyperarousal due to anxiety [28][29][30][31].…”

Section: Discussioncontrasting

confidence: 99%

Anorexia: Anormal Phobia of Normal Weight

Pop‐Jordanova

Zorčec²,

Demerdzieva

2017

Prilozi

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“…Methodology problems, mainly based on the variability of the samples (age, body mass index, chronicity, medication, experimental tasks, time of EEG testing), could explain the dispute in respect of the relationship between EEG changes/ weight changes 30. Nevertheless, the majority of studies have reported a relationship between weight changes and EEG changes.…”

Section: Resultsmentioning

confidence: 99%

“…The aforementioned reduced alpha/increased beta pattern relates to an underweight state in eyes open EEG changes after refeeding (alpha power increases and beta and delta power decreases). Eyes closed underweight patients with anorexia nervosa have elevated theta in parietal-occipital regions, which remains after refeeding 30. The complex reduced alpha/increased beta/increased theta has been related to a high level of cortical activation, which usually appears with high levels of anxiety.…”

Section: Discussionmentioning

confidence: 99%

“…In general, the controversy about the relationship between eating disorders and EEG disturbances has been difficult to resolve because of the significant variability in the eating disorder samples in terms of age, body mass index, EEG technique used, medications, duration of illness, and experimental settings 30. In respect of the relationship between EEG disturbances and the changes with weight gain, the results are also controversial.…”

Section: Discussionmentioning

confidence: 99%

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Electroencephalography in eating disorders

Jáuregui‐Lobera¹

2011

NDT

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Clinical applications of electroencephalography (EEG) are used with different objectives, EEG being a noninvasive and painless procedure. In respect of eating disorders, in the 1950s a new line of study about the neurological bases of anorexia nervosa was started and has since been developed. The purpose of this review is to update the existing literature data on the main findings in respect of EEG in eating disorders by means of a search conducted in PubMed. Despite the fact that weight gain tends to normalize some brain dysfunctions assessed by means of EEG, the specific effect of gaining weight remains controversial. Different studies have reported that cortical dysfunctions can be found in patients with anorexia nervosa even after weight gain, whereas others have reported a normalization of EEG in respect of the initial reduced alpha/ increased beta power in those patients with refeeding. Findings of studies that have analyzed the possible relationship between eating disorders and depression, based on sleep EEG disturbances, do not support the idea of eating disorders as a variant of depression or affective disorders. Some EEG findings are very consistent with previous neuroimaging results on patients with anorexia nervosa, reporting neural disturbances in response to stimuli that are relevant to the pathology (eg, stimuli like food exposure, different emotional situations, or body images).

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“…Hatch et al [49] investigated the resting electroencephalogram (EEG) of 37 adolescent anorexia nervosa patients (mean age 15 years, mean duration of illness 9 months) before and after re-feeding and weight recovery, compared with 45 healthy controls. In the 'eyes-open' condition, there was significantly reduced alpha activity and increased beta frontal activity in the patient group.…”

Section: Prospective Studiesmentioning

confidence: 99%