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Obesity and body image: an evaluation of sensory and non-sensory components

Published online by Cambridge University Press:  09 July 2009

Rick M. Gardner*
Affiliation:
Department of Psychology, University of Southern Colorado, USA
Renee Martinez
Affiliation:
Department of Psychology, University of Southern Colorado, USA
Yvonne Sandoval
Affiliation:
Department of Psychology, University of Southern Colorado, USA
*
1Address for correspondence: Dr Rick M. Gardner, Department of Psychology, University of Southern Colorado, Pueblo, Colorado 81001, USA.

Synopsis

Body image in 38 obese and normal weight subjects was measured using a video TV monitor. Tasks included a continuous task where subjects manipulated the size of their body image on a TV screen, and a discrete task, where they judged the accuracy of their TV image which was presented as either too heavy or too thin. Subjects viewed their images in both regular street clothes and with minimal clothing.

Results from the continuous task revealed that obese subjects overestimated body size. All subjects were more accurate on trials in which the initial image was adjusted in the heavier direction.

On the discrete task, a signal detection analysis revealed sensory sensitivity differences between obese and normal weight subjects. Obese subjects were better at detecting distortion caused by a too thin image, but were inferior in detecting a too heavy distortion. No significant differences were obtained in response criteria or between clothing conditions.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1987

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References

Allebeck, P., Hallberg, D. & Espmark, S. (1976). Body image–an apparatus for measuring disturbances in estimation of size and shape. Journal of Psychosomatic Research 20, 583589.Google Scholar
Bruch, H. (1962). Perceptual and conceptual disturbances in anorexia nervosa. Psychosomatic Medicine 24, 187194.Google Scholar
Bruch, H. (1973). Eating Disorders. Basic Books: New York.Google Scholar
Cappon, D. & Banks, R. (1968). Distorted body perception in obesity. Journal of Nervous and Mental Diseases 146, 465467.Google Scholar
Collins, J. K., McCabe, M. P. & Jupp, J. J. (1983). Body percept change in obese females after weight reduction therapy. Journal of Clinical Psychology 39, 507512.Google Scholar
Dillon, D. J. (1962). Measurement of perceived body size. Perceptual and Motor Skills, 14, 191196.Google Scholar
Gardner, R. M. & Boice, R. (1986). A computer program to generate signal detection theory values for sensitivity and response bias. Behavioral Research Methods, Instruments and Computers 18, 5456.CrossRefGoogle Scholar
Gardner, R. M. & Moncrieff, C. (1987). Body image distortion in anorexics as a non-sensory phenomena: a signal detection approach. Journal of Clinical Psychology (in the press).Google Scholar
Garner, D. M. & Garfinkel, P. E. (1981). Body image in anorexia nervosa: Measurement, theory and clinical implications. International Journal of Psychiatry in Medicine 11, 263284.Google Scholar
Garner, D. M., Garfinkel, P. E., Stancer, H. C. & Moldofsky, H. (1976). Body image disturbances in anorexia nervosa and obesity. Psychosomatic Medicine 38, 327337.Google Scholar
Garner, D. M., Garfinkel, P. E. & Moldofsky, H. (1978). Perceptual experiences in anorexia nervosa and obesity. Canadian Psychiatric Association Journal 23, 249260.Google Scholar
Garrow, J.Treat Obesity Seriously (1982). Churchill Livingstone: New York.Google Scholar
Glucksman, M. L. & Hirsch, J. (1969). The response of obese patients to weight reduction. III. The perception of body size. Psychosomatic Medicine 31, 17.Google Scholar
Grinker, J. (1973). Behavioural and metabolic consequences of weight reduction. Journal of the American Dietary Association, 62, 3034.Google Scholar
Harmatz, M. G., Gronendyke, B. A. & Thomas, T. (1985). The underweight male: the unrecognized problem group of body image research. Journal of Obesity and Weight Regulation 4, 258267.Google Scholar
Jupp, J. J. & Collins, J. K. (1983). Instruments for the measurement of unconscious and conscious aspects of body image. Australian Journal of Clinical and Experimental Hypnosis 11, 89100.Google Scholar
Metropolitan Life Insurance Co. (1983). What new weight charts really mean. US News and World Report 94, 8.Google Scholar
Orbach, J., Traub, A. C. & Olson, R. (1966). Psychophysical studies of body image. Archives of General Psychiatry 12, 4147.Google Scholar
Schontz, F. C. (1974). Body image and its disorders. International Journal of Psychiatry in Medicine 5, 150161.Google Scholar
Slade, P. D. & Russell, G. F. M. (1973). Awareness of body dimension in anorexia nervosa: cross-section and longitudinal studies. Psychosomatic Medicine 3, 188199.Google Scholar
Tanner, W. P. & Swets, J. A. (1954). A decision-making theory of visual detection. Psychological Review 61, 401409Google Scholar