Contingent negative variation in children with anorexia nervosa

Torigoe, Katsumi; Numata, Osamu; Satō, Takashi; Imai, Chihaya; Takeuchi, Kazuo; Yamazaki, Hajime; Boku, Naoki; Yazaki, Satoshi; Sudo, Shyoji; Kuwabara, Atsushi; Hasegawa, S.; Hiura, Makoto; Ino, Haruyoshi

doi:10.1046/j.1442-200x.1999.01071.x

Cited by 9 publications

(5 citation statements)

References 43 publications

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“…38–45,50,51,55 Comparing the effect of unpleasant (bitter tea) and pleasant (chocolate) gustatory stimuli by means of multichannel EEG, patients with anorexia nervosa showed lower-dimensional complexity in the majority of recording sites than that seen in healthy controls, independent of taste conditions. Higher omega complexity was seen in controls in the left side, irrespective of taste effects, but no such hemispheric difference was observed in patients with anorexia nervosa.…”

Section: Resultsmentioning

confidence: 99%

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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Section: Resultsmentioning

confidence: 99%

Electroencephalography in eating disorders

Jáuregui‐Lobera¹

2011

NDT

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“…Brainstem auditory evoked potential abnormalities were observed in AN which, compared to healthy controls, were not significant (Miyamoto et al, 1992). In children with AN the CNV was found to occur with lower amplitude, interpreted as a sign of noradrenergic and dopaminergic deficiency in this condition (Torigoe et al, 1999). In spite of the fact that the EEG and CT findings were within normal limits, diffuse bilateral hypoperfusion was found by SPECT in the frontal, parietal and frontotemporal areas in AN patients (Kuruoglu et al, 1998).…”

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confidence: 82%

Effects of sweet and bitter gustatory stimuli in anorexia nervosa on EEG frequency spectra

Toth

Túry

Gáti

et al. 2004

International Journal of Psychophysiology

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“…Accordingly, there are many studies about qEEG changes in depression syndromes (Giles, Perlis, Reynolds, & Kupfer, 1998;Hemmeter, Bischof, Hatzinger, Seifritz, & Holsboer-Trachsler, 1998;Knott, Mahoney, Kennedy, & Evans, 2001;Schneider, Heimann, Mattes, Lutzenberger, & Birbaumer, 1992), Alzheimers disease (Dierks, Frölich, Ihl, & Maurer, 1995;Elmstahl, Rosen, & Gullberg, 1994;Ihl & Brinkmeyer, 1999), schizophrenia (Lund, Sponheim, Iacono, & Clementz, 1995;Murri, 1991;Sponheim, Clementz, Iacono, & Beiser, 1994;Stassen et al, 1999;Tauscher, Fischer, Neumeister, Rappelsberger, & Kasper, 1998;Wada, Nanbu, Jiang, Koshino, & Hashimoto, 1998a;Wada et al, 1998b). In comparison to these psychiatric applications, there are some studies utilizing qEEG in anorexia nervosa (AN) so far (Bradley et al, 1997;Bordallo, Diago, & Alberto, 1986;Crisp, Fenton, & Scotten, 1968;Delvenne, Kerkhofs, Appelboom-Fondu, Lucas, & Mendlewicz, 1992;Hughes, 1996;Lauer & Krieg, 1992;Neil, Merikangas JR, Foster, Merikangas KR, Spiker, & Kupfer, 1980;Rothenberger, Blanz, & Lehmkuhl, 1991;Struve 1986;Torigoe et al, 1999). The different studies investigated, for example, changes of EEG during sleep in AN, or event related potentials (ERP) in patients with anorexia nervosa.…”

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confidence: 99%

Stable Asymmetric Interhemispheric Theta Power in Patients With Anorexia Nervosa During Haptic Perception Even After Weight Gain: A Longitudinal Study

Grünwald

Weiß

Assmann

et al. 2004

Journal of Clinical and Experimental Neuropsychology

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The aim of this study was to investigate the interhemispheric brain electrical asymmetries during a resting period and during haptic tasks in theta frequency band (4-8 Hz) between healthy controls (N = 10) and patients with anorexia nervosa (AN) (N = 10). Additionally, AN patients were investigated twice in a longitudinal design (T(0)-T(1)) to analyze treatment effects. At rest, a theta asymmetry was observed in the AN group during an acute stage of starvation (T(0)) but not after weight gain (T(1)). Importantly, theta asymmetry over central regions (C3-C4) was observed in the AN group during the acute stage of starvation (T(0) as well as after weight gain (T(1)) while performing haptic exploration task. In the control group, we found no significant theta asymmetry neither at rest nor during haptic explorations. Results are interpreted as an overarousal of the right hemisphere in AN patients during complex multisensory integration processing which is possibly a result of general functional deficits of the right hemisphere.

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Contingent negative variation in children with anorexia nervosa

Abstract: These findings suggest that early CNV may be diminished by norepinephrine deficiency and late CNV may be attenuated by dopaminergic deficiency in children with AN. Reduced CNV may represent impaired cognitive processes which reflect impaired appetitive behavior in AN children.

Cited by 9 publications

References 43 publications

Electroencephalography in eating disorders

Electroencephalography in eating disorders

Effects of sweet and bitter gustatory stimuli in anorexia nervosa on EEG frequency spectra

Stable Asymmetric Interhemispheric Theta Power in Patients With Anorexia Nervosa During Haptic Perception Even After Weight Gain: A Longitudinal Study

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