Separating two components of body image in anorexia nervosa using fMRI

2009 ◽  
Vol 40 (9) ◽  
pp. 1519-1529 ◽  
Author(s):  
H. M. Mohr ◽  
J. Zimmermann ◽  
C. Röder ◽  
C. Lenz ◽  
G. Overbeck ◽  
...  
Keyword(s):  
Body Image ◽  
Anorexia Nervosa ◽  
Body Size ◽  
Posterior Parietal Cortex ◽  
Body Schema ◽  
The Body ◽  
Neural Activation ◽  
Size Estimation ◽  
Satisfaction Rating ◽  
Differential Modulations

BackgroundBody image distortion is a key symptom of anorexia nervosa. In behavioral research two components of body image have been defined: attitudes towards the body and body size experience. Neuroimaging studies concerning own body image distortions in anorexia nervosa have revealed an inconsistent pattern of results and are constrained by the fact that no direct distinction between the different parts of body image has been made.MethodThe present study therefore set out to investigate the neural correlates of two parts of the own body image using functional magnetic resonance imaging (fMRI): satisfaction rating and size estimation for distorted own body photographs in patients with anorexia nervosa and controls.ResultsAnorectic patients were less satisfied with their current body shape than controls. Patients further demonstrated stronger activation of the insula and lateral prefrontal cortex during the satisfaction rating of thin self-images. This indicates a stronger emotional involvement when patients are presented with distorted images close to their own ideal body size. Patients also overestimated their own body size. We were able to show complex differential modulations in activation of the precuneus during body size estimation in control and anorectic subjects. It could be speculated that a deficit in the retrieval of a multimodal coded body schema in precuneus/posterior parietal cortex is related to body size overestimation.ConclusionsWe were able to find specific behavioral responses and neural activation patterns for two parts of body image in anorexia nervosa and healthy controls. Thus, the present results underline the importance of developing research and therapeutic strategies that target the two different aspects of body image separately.

Body-Size Estimation in Anorexia Nervosa

1995 ◽  
Vol 81 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Enrico Molinari
Keyword(s):  
Body Image ◽  
Anorexia Nervosa ◽  
Body Size ◽  
The Body ◽  
Control Group ◽  
Size Estimation ◽  
Image Perception ◽  
Pelvic Area ◽  
Body Size Estimation ◽  
Different Parts

The aim was to explore the body-image perception of a group of 20 hospitalised anorexic patients, aged 18 to 21 years, undergoing a period of treatment. The instrument used was the Askevold nonverbal perception test as modified by Allamani and colleagues in 1978 to assess perception of the dimensions of different parts of the body by exploiting the capacity to project them into space. The four parts were the head, the thoracic area, the abdominal area, and the pelvic area. Analysis of responses indicated that anorexic patients overestimated the abdominal and the pelvic areas much more than the 20 members of the control group (50% vs 30%). The areas of the head and thorax were perceived almost in their real dimensions by the anorexic patients but were underestimated by the control group.

Body Image in Anorexia Nervosa

1981 ◽  
Vol 26 (4) ◽  
pp. 224-227 ◽  
Author(s):  
David M. Garner
Keyword(s):  
Body Image ◽  
Anorexia Nervosa ◽  
Body Satisfaction ◽  
Body Part ◽  
The Body ◽  
Size Perception ◽  
Whole Body ◽  
Size Estimation ◽  
Psychological Disturbance ◽  
Body Image Disturbances

Despite much recent interest in the objective measurement of body image in anorexia nervosa, many questions remain regarding basic mechanisms responsible for the findings as well as their meaning in the disorder. It is unclear if “whole body” measures assess the same underlying phenomena as the “body part” method, and it is unclear if body image disturbances are etiologic or a byproduct of anorexia nervosa. The possible association between self-esteem and body satisfaction and the relationship of the latter variable to actual size estimation supports the hypothesis that size perception may be closely tied to satisfaction with non-physical aspects of self. Finally it must be determined if over estimation is a function of a general psychological disturbance or of a deficit of specific interest in this disorder. Despite these questions, the way in which anorexic patients see themselves as well as the cognitive and affective responses to this perception remains an interesting and potentially fruitful area of study with this disorder.

Body Image Distortion in Bulimia Nervosa

1985 ◽  
Vol 147 (4) ◽  
pp. 408-412 ◽  
Author(s):  
Sandra A. Birtchnell ◽  
J. Hubert Lacey ◽  
Anne Harte
Keyword(s):  
Body Image ◽  
Body Size ◽  
Previous History ◽  
The Body ◽  
Size Estimation ◽  
Image Perception ◽  
Body Width ◽  
Duration Of Illness ◽  
Body Size Estimation ◽  
Visual Size

Body image perception was measured in 50 women with bulima nervosa and 19 age and weight matched female controls, using a visual size estimation apparatus. Both groups overestimated body widths, but not the width of a neutral object, and whilst there was a trend for bulimics to overestimate more than controls this did not reach significance. The part of the body most overestimated corresponded to the part most disliked in only a third of both groups. The bulimics without a previous history of anorexia nervosa overestimated body width more than those with such a history; this may be related to the fact that the former had a significantly greater weight index. Bulimics who were within 5% of mean-matched population weight overestimated body width less than the others, this difference reaching significance when compared with the heavier groups; a similar, but non-significant, trend was demonstrated in controls. This may be linked to a greater dissatisfaction with body size. Duration of illness, frequency of bingeing and self-induced vomiting were not shown significantly to alter body size estimation. The bulimics who completed a 10-session outpatient treatment programme subsequently demonstrated a significant decrease in overestimation of waist and hip width.

Body Size Estimation in Anorexia Nervosa

1988 ◽  
Vol 153 (S2) ◽  
pp. 23-26 ◽  
Author(s):  
Andrew M. Whitehouse ◽  
Christopher P. L. Freeman ◽  
Annette Annandale
Keyword(s):  
Anorexia Nervosa ◽  
Body Size ◽  
Body Part ◽  
Normal Weight ◽  
The Body ◽  
Size Perception ◽  
Size Estimation ◽  
Significant Difference ◽  
Body Size Perception ◽  
Body Size Estimation

Clinicians who deal with patients with anorexia nervosa are well acquainted with their patients' inability to recognise their emaciation. The patients' insistence that they are normal weight or even overweight, against clear evidence to the contrary, led Bruch (1962) to state that the misperception reaches “delusional proportions”. Studies of body size perception in anorexia nervosa that have used the ‘body part’ method have invariably found that the patients overestimate their body size (Slade & Russell, 1973; Crisp & Kalucy, 1974; Pierloot & Houben, 1978; Garner et al, 1976; Button et al, 1977; Fries, 1977; Casper et al, 1979) but the majority have not found any significant difference in size estimation between patients and controls (Slade, 1985).

Körperbild bei Magersucht - Wahrnehmung ist nicht gestört

2018 ◽  
Vol 68 (02) ◽  
pp. 54-54
Keyword(s):  
Body Image ◽  
Virtual Reality ◽  
Anorexia Nervosa ◽  
Body Size ◽  
Size Estimation ◽  
Affektive Störung ◽  
Body Size Estimation

Mölbert SC et al. Assessing body image in anorexia nervosa using biometric self-avatars in virtual reality: Attitudinal components rather than visual body size estimation are distorted. Psychol Med 2017 Jul 26; 1–12 Ein gestörtes Körperbild ist ein Schlüsselsymptom bei Magersucht. Haben Magersüchtige eine verzerrte Wahrnehmung? Oder liegt hier eine affektive Störung vor? Eine Tübinger Arbeitsgruppe hat sich das Phänomen genauer angeschaut.

Body Image in Anorexia Nervosa: Body Size Estimation Utilising a Biological Motion Task and Eyetracking

2015 ◽  
Vol 24 (2) ◽  
pp. 131-138 ◽  
Author(s):  
Andrea Phillipou ◽  
Susan Lee Rossell ◽  
Caroline Gurvich ◽  
David Jonathan Castle ◽  
Nikolaus Friedrich Troje ◽  
...  
Keyword(s):  
Body Image ◽  
Anorexia Nervosa ◽  
Body Size ◽  
Biological Motion ◽  
Size Estimation ◽  
Body Size Estimation

Body Image Disturbance in Anorexia Nervosa: Beyond Body Image*

1989 ◽  
Vol 34 (9) ◽  
pp. 898-905 ◽  
Author(s):  
Aïda Warah
Keyword(s):  
Body Image ◽  
Anorexia Nervosa ◽  
Body Size ◽  
Cognitive Disorder ◽  
Body Image Disturbance ◽  
Future Research ◽  
Size Estimation ◽  
Image Perception ◽  
Body Image Perception ◽  
Body Size Estimation

In this paper the literature on body image disturbance in anorexic patients is reviewed. After a decade of experimental investigation of body image in anorexia nervosa, where old and new techniques have been used and where a large number of correlations have been identified, what do we really know? The findings have been conflicting but some regularities exist. It is hypothesized that the conflicting results may be related to the presence of different subgroups among anorexics and different types of body image disturbance. Body size estimation is only one dimension of body image perception. likewise, body size overestimation is only one aspect of body image perception. Likewise, body size over-estimation is only one aspect of body image disturbance. Some, but not all anorexics, overestimate their body size, and those who do, seem to have poor prognosis. Body size overestimation is not confined to anorexics. It is not known whether it is a function of a general perceptual/cognitive disorder, but it does seem to be stable over time. The implications of the presence of other psychiatric conditions in anorexic patients are discussed and suggestions for future research and for practice are made.

The body image–body schema/ownership–agency model for pathologies: four case studies

2021 ◽  
pp. 328-348
Author(s):  
Aviya Ben David ◽  
Yochai Ataria
Keyword(s):  
Body Image ◽  
Anorexia Nervosa ◽  
Case Studies ◽  
Traumatic Stress ◽  
Body Schema ◽  
Unified Model ◽  
The Body ◽  
Post Traumatic Stress ◽  
Agency Model ◽  
Post Traumatic

The body image/body schema–ownership/agency (BI-BS/Ow-Ag) model seeks to explain different kinds of pathologies as part of a unified model. As part of this endeavour, this chapter attempts to apply the BI-BS/Ow-Ag model to the following phenomena: body integrity identity disorder (BIID), schizophrenia, anorexia nervosa (AN), and post-traumatic stress disorder (PTSD).

Sign in / Sign up

Export Citation Format

Share Document