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

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.

[1]  R. Gardner,et al.  Body image distortion in anorexics as a non-sensory phenomenon: a signal detection approach. , 1988, Journal of clinical psychology.

[2]  J. K. Collins,et al.  Body percept change in obese females after weight reduction therapy. , 1983, Journal of clinical psychology.

[3]  D. Garner,et al.  Body Image in Anorexia Nervosa: Measurement, Theory and Clinical Implications , 1982, International journal of psychiatry in medicine.

[4]  T. Kennedy.  TREAT OBESITY SERIOUSLY , 1982 .

[5]  H. Moldofsky,et al.  Perceptual Experiences in Anorexia Nervosa and Obesity* , 1978, Canadian Psychiatric Association journal.

[6]  H. Moldofsky,et al.  Body Image Disturbances in Anorexia Nervosa and Obesity , 1976, Psychosomatic medicine.

[7]  F. Shontz.  Body Image and its Disorders , 1974, International journal of psychiatry in medicine.

[8]  P. Slade,et al.  Awareness of body dimensions in anorexia nervosa: cross-sectional and longitudinal studies , 1973, Psychological Medicine.

[9]  D. Cappon,et al.  DISTORTED BODY PERCEPTION IN OBESITY , 1968, The Journal of nervous and mental disease.

[10]  D. J. Dillon.  Measurement of Perceived Body Size , 1962 .

[11]  H BRUCH,et al.  Perceptual and Conceptual Disturbances in Anorexia Nervosa , 1962, Psychosomatic medicine.

[12]  J. Swets,et al.  A decision-making theory of visual detection. , 1954, Psychological review.

[13]  Gemma C. L. Bornick.  Eating disorders. , 1987, Southern medical journal.

[14]  Rick M. Gardner,et al.  A computer program to generate signal-detection theory values for sensitivity and response bias , 1986 .

[15]  M. Harmatz,et al.  The underweight male: The unrecognized problem group of body image research. , 1985 .

[16]  P Allebeck,et al.  Body image--an apparatus for measuring disturbances in estimation of size and shape. , 1976, Journal of psychosomatic research.

[17]  J. Grinker.  Behavioral and metabolic consequences of weight reduction. , 1973, Journal of the American Dietetic Association.

[18]  M. L. Glucksman,et al.  The response of obese patients to weight reduction. 3. The perception of body size. , 1969, Psychosomatic medicine.

[19]  Ronald Olson,et al.  Psychophysical Studies of Body-Image: II. Normative Data on the Adjustable Body-Distorting Mirror * , 1966 .