Preconscious processing of body image cues Impact on body percept and concept
Glenn Wallera,*, Juliette Barnesb a Department of Psychiatry, St. George’s Hospital Medical School, University of London, Cranmer Terrace, London SW17 0RE, UK b Department of Psychology, Royal Holloway, University of London, London, UK
Abstract Objective: There is considerable evidence that body image is an elastic construct, which can be influenced by environmental and internal factors. The present study used a visual subliminal processing paradigm, with the aim of determining the impact of preconscious processing of verbal cues upon body image (percept and concept). Method: Forty nonclinical women completed measures of body percept and concept before and after being exposed to very rapid presentations (4 ms) of fatness and thinness
Keywords: Body image; Body percept; Body concept; Subliminal processing
cues. Results: The women with relatively unhealthy eating attitudes were influenced by the fatness stimulus, with a worsening of their body percept and concept. In contrast, the women with healthier eating attitudes showed an improvement in their body percept in response to the thinness stimulus. Conclusion: The findings support the centrality of body image schemata in eating psychopathology, although there is a need for replication and extension in other groups. D 2002 Elsevier Science Inc. All rights reserved.
Introduction Body image has been conceptualized in a number of ways [1]. At a broad level, however, it has two components [2]. Body percept is the internal visual image of body shape and size, while body concept refers to the level of satisfaction with one’s body. Although disturbances of body percept are common in women with eating disorders, it is also the case that nonclinical women overestimate their body size [1], especially where they have particular functional reasons to focus on body shape and
References: [1] Thompson JK. Body image disturbance: assessment and treatment. New York: Pergamon, 1990. [2] Slade P. What is body image? Behav Res Ther 1994;32:497 – 502. [3] Slade P, Brodie D. Body image distortion and eating disorder: a reconceptualization based on the recent literature. Eur Eat Disord Rev 1994;2:32 – 46. [4] Slade P. A review of body-image studies in anorexia nervosa and bulimia nervosa. J Psychiatr Res 1985;19:255 – 65. [5] Yellowlees PM, Roe M, Walker MK, Ben-Tovim DI. Abnormal perception of food size in anorexia nervosa. Br Med J 1988;296:1689 – 90. [6] Cooper M. Cognitive theory in anorexia nervosa and bulimia nervosa: a review. Behav Cogn Psychother 1997;25:113 – 45. [7] Fairburn CG, Shafran R, Cooper Z. A cognitive – behavioural theory of anorexia nervosa. Behav Res Ther 1999;37:1 – 13. [8] Proctor L, Morley S. ‘‘Demand characteristics’’ in body size estimation in anorexia nervosa. Br J Psychiatry 1986;149:113 – 8. [9] Hamilton K, Waller G. Media influences on body size estimation in anorexia and bulimia: an experimental study. Br J Psychiatry 1993; 162:837 – 40. [10] Sumner A, Waller G, Killick S, Elstein M. Body image distortion in pregnancy. A pilot study of the effects of media images. J Reprod Infant Psychol 1993;11:203 – 8. [11] Thompson JK, Coovert DL, Pasman LN, Robb J. Body image and food consumption: three laboratory studies of perceived calorie content. Int J Eat Disord 1992;14:445 – 58. [12] Thompson JK, Coovert DL, Richards KJ, Johnson S, Cattarin J. Development of body image, eating disturbance, and general psychological functioning in female adolescents: covariance structure modeling and longitudinal investigations. Int J Eat Disord 1995;18:221 – 326. [13] Haimovitz D, Lansky LM, O’Reilly P. Fluctuations in body satisfaction across situations. Int J Eat Disord 1993;13:77 – 84. [14] Dixon NF. Preconscious processing. Chichester: Wiley, 1981. [15] Gerard HB, Kupper DA, Nguyen L. The causal link between depression and bulimia: counterposing two theories of mental development. In: Masling JM, Bornstein RF, editors. Psychoanalytic perspectives on psychopathology. Washington: American Psychological Association, 1993. pp. 225 – 51. [16] Patton CJ. Fear of abandonment and binge eating: a subliminal psychodynamic activation investigation. J Nerv Ment Dis 1992;180: 484 – 90. [17] Meyer C, Waller G. The impact of emotion upon eating behaviour: the role of subliminal visual processing of threat cues. Int J Eat Disord 1999;25:319 – 26. [18] Waller G, Mijatovich S. Preconscious processing of threat cues: impact upon eating upon women with unhealthy eating attitudes. Int J Eat Disord 1998;24:83 – 9. [19] Bornstein RF. Critical importance of stimulus unawareness for the production of subliminal psychodynamic activation effects: a metaanalytic review. J Clin Psychol 1990;46:201 – 10. [20] Weinberger J, Hardaway R. Separating science from myth in subliminal psychodynamic activation. Clin Psychol Rev 1990;10:727 – 56. [21] American Psychiatric Association. Diagnostic and statistical manual of mental disorders. 4th ed. Washington: American Psychiatric Association, 1994. [22] Garner DM. Eating disorder inventory: 2. Professional manual. Odessa (FL): Psychological Assessment Resources, 1991. [23] Slade P, Dewey ME, Brodie D, Kiemle G. Development and preliminary validation of the Body Satisfaction Scale. Psychol Health 1990;4:213 – 20. [24] Myers PN, Biocca FA. The elastic body image: the effect of television advertising and programming on body image distortions in young women. J Commun 1992;42:108 – 33. ´ ´ [25] Cooper M, Cohen-Tovee E, Todd G, Wells A, Tovee M. The eating disorder belief questionnaire: preliminary development. Behav Res Ther 1997;35:381 – 8. [26] McManus F, Waller G, Chadwick P. Biases in the processing of different forms of threat in bulimic and comparison women. J Nerv Ment Dis 1996;184:547 – 54.