Naoko Shirao

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Eating disorders (EDs) are associated with abnormalities of body image perception. The aim of the present study was to investigate the functional abnormalities in brain systems during processing of negative words concerning body images in patients with EDs. Brain responses to negative words concerning body images (task condition) and neutral words (control(More)
BACKGROUND Although the brain areas involved in imagery have been reported, the neural bases of individual differences in imagery remain to be elucidated. People with high degrees of alexithymia (HDA) are known to have constricted imaginal capacities. The purpose of this study was to investigate neural correlates of imagery disturbance in subjects with HDA.(More)
Eating disorder (ED) patients have severe disturbances in the perception of body shape and weight. The authors investigated brain activation patterns during the perception of distorted body images in various subtypes of ED. Participants comprised 33 patients with EDs (11 with restricting-type anorexia nervosa (AN-R), 11 with binging-purging type anorexia(More)
Several studies have reported that anorexia nervosa (AN) patients have high levels of alexithymia. However, relatively little is known about the underlying neurobiological relationships between alexithymia and AN. We used functional magnetic resonance imaging to examine the brain responses in 30 AN patients and 20 healthy women during the processing of(More)
Individuals with alexithymia are typically unable to identify, understand, or describe their own emotions. Patients with anorexia nervosa (AN) have been shown to have high levels of alexithymia, and the latter trait may play an important role over the course of AN. However, relatively little is known about the underlying neurobiological relationships(More)
BACKGROUND Our aim was to study the gender differences in brain activation upon viewing visual stimuli of distorted images of one's own body. METHODS We performed functional magnetic resonance imaging on 11 healthy young men and 11 healthy young women using the "body image tasks" which consisted of fat, real, and thin shapes of the subject's own body. (More)
BACKGROUND We have previously reported that the temporomesial area, including the amygdala, is activated in women when processing unpleasant words concerning body image. AIMS To detect gender differences in brain activation during processing of these words. METHOD Functional magnetic resonance imaging was used to investigate 13 men and 13 women during(More)
Previous behavioral studies suggest that people who have an abnormal eating behavior may perceive information concerning body image distortion more aversively than others. We performed a functional magnetic resonance imaging (fMRI) study on 15 young women, using an emotional decision task including unpleasant words concerning body image and neutral words.(More)
To clarify the mechanism of adaptation to stress in the brain, we performed neuroimaging studies by functional magnetic resonance imaging and magnetoencephalography. First, to investigate which areas of the brain play an important role in the perception of stressful events, we performed fMRI for recognition of unpleasant words concerning interpersonal(More)
We examined brain activation in the presence of eating disorders while processing unpleasant words concerning body images using functional magnetic resonance imaging (fMRI). Anorexia nervosa restricting type (AN-R) and anorexia nervosa binge-eating/ purging type (AN-BP) patients showed significant amygdala activation. Farther, AN-BP and bulimia nervosa (BN)(More)
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