scholarly journals Use of a real-life practical context changes the relationship between implicit body representations and real body measurements

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lize De Coster ◽  
Pablo Sánchez-Herrero ◽  
Jorge López-Moreno ◽  
Ana Tajadura-Jiménez

AbstractA mismatch exists between people’s mental representations of their own body and their real body measurements, which may impact general well-being and health. We investigated whether this mismatch is reduced when contextualizing body size estimation in a real-life scenario. Using a reverse correlation paradigm, we constructed unbiased, data-driven visual depictions of participants’ implicit body representations. Across three conditions—own abstract, ideal, and own concrete body—participants selected the body that looked most like their own, like the body they would like to have, or like the body they would use for online shopping. In the own concrete condition only, we found a significant correlation between perceived and real hip width, suggesting that the perceived/real body match only exists when body size estimation takes place in a practical context, although the negative correlation indicated inaccurate estimation. Further, participants who underestimated their body size or who had more negative attitudes towards their body weight showed a positive correlation between perceived and real body size in the own abstract condition. Finally, our results indicated that different body areas were implicated in the different conditions. These findings suggest that implicit body representations depend on situational and individual differences, which has clinical and practical implications.

2019 ◽  
Vol 8 (9) ◽  
pp. 1330 ◽  
Author(s):  
Scarpina ◽  
Serino ◽  
Keizer ◽  
Chirico ◽  
Scacchi ◽  
...  

Background. The effective illusory ownership over an artificial body in modulating body representations in healthy and eating disorders population has been repeatedly reported in recent literature. In this study, we extended this research in the field of obesity: specifically, we investigated whether ownership over a virtual body with a skinny abdomen might be successfully experienced by participants affected by obesity. Methods. Fifteen participants with obesity and fifteen healthy-weight participants took part at this study in which the VR-Full-Body Illusion was adopted. The strength of illusion was investigated through the traditional Embodiment Questionnaire, while changes in bodily experience were measured through a body size estimation task. Results. Participants with obesity as well as healthy-weight participants reported to experience the illusion. About the body size estimation task, both groups reported changes only in the estimation of the abdomen’s circumference after the experimental condition, in absence of any another difference. Discussion. Participants with obesity reported to experience the illusion over a skinny avatar, but the modulation of the bodily experience seems controversial. Future lines of research exploiting this technique for modulating body representations in obesity, specifically in terms of potential therapeutic use, were discussed.


1995 ◽  
Vol 81 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Enrico Molinari

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.


Psico ◽  
2016 ◽  
Vol 47 (3) ◽  
pp. 179
Author(s):  
Gabriela Salim Xavier ◽  
Sebastião Sousa Almeida

O objetivo desse estudo foi quantificar a estimação da imagem corporal para avaliar as variáveis que a influenciam – Índice de Massa Corporal (IMC), insatisfação com a imagem corporal e sintomas depressivos em mulheres eutróficas (n = 40) e com excesso de peso (n = 40). A avaliação da imagem corporal e dos sintomas depressivos foi conduzida por meio da Escala de Figuras de Silhuetas (EFS) e pelo Inventário de Depressão de Beck (BDI), em suas versões brasileiras, respectivamente. No grupo eutrófico, a insatisfação e a pontuação do BDI explicaram 55% e 12% da variação da estimação, respectivamente. No grupo com excesso de peso, a insatisfação com a imagem corporal foi responsável por 14% da variação da estimação da imagem corporal, enquanto o IMC, individualmente, por somente 9%. Quando avaliados em conjunto, esse percentual aumenta para 42%, indicando que juntos – IMC e insatisfação – agregam maior valor explicativo para essa variável. A insatisfação foi considerada a variável mais saliente, influenciando em maiores proporções os valores de estimação obtidos, particularmente entre as mulheres eutróficas.


1985 ◽  
Vol 147 (4) ◽  
pp. 408-412 ◽  
Author(s):  
Sandra A. Birtchnell ◽  
J. Hubert Lacey ◽  
Anne Harte

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.


1988 ◽  
Vol 153 (S2) ◽  
pp. 23-26 ◽  
Author(s):  
Andrew M. Whitehouse ◽  
Christopher P. L. Freeman ◽  
Annette Annandale

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).


Body Image ◽  
2006 ◽  
Vol 3 (2) ◽  
pp. 163-171 ◽  
Author(s):  
Marita P. McCabe ◽  
Lina A. Ricciardelli ◽  
Geeta Sitaram ◽  
Katherine Mikhail

2019 ◽  
Vol 10 ◽  
Author(s):  
Joanna Alexi ◽  
Kendra Dommisse ◽  
Dominique Cleary ◽  
Romina Palermo ◽  
Nadine Kloth ◽  
...  

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