The current study examined the subjective and physiological reactivity to body image stimuli among females engaging in a social comparison task. Study I was conducted to select images of thin and average size models and neutral objects for Study II. For Study II, fifty-six female undergraduate students had their skin conductance and startle reflex responses recorded while comparing themselves to images featuring thin models, average size models, and neutral objects. Following the visual presentation, participants rated every image using the Self-Assessment Manikin (SAM) rating scale. Analysis from the SAM ratings scale revealed a significant picture type effect for arousal, dominance, and body satisfaction, indicating that participants reported greater arousal, more body dissatisfaction, and less control after viewing images of thin models than after viewing images of normal models and neutral objects. With regards to the psychophysiological data, results indicated that startle reflex responses were inhibited during the presentation of thin models in comparison to average size models and neutral objects. Moreover, startle reflex responses were inhibited for average size models in comparison to neutral objects. The finding that startle reactivity to model images was inhibited with respect to neutral images suggests pictures of models were processed affectively as pleasant, positive stimuli. The finding that startle reactivity to thin models was inhibited with respect to average size models suggests that thin model images elicited differentially greater positive affect than average size models. For skin conductance, analysis revealed no significant picture type effect. Taken together, the results of this study highlight the influence of social comparison processes on affectivity reactivity to body image. Future research directions are discussed.

Social comparison theory offers a useful conceptual framework to understand how mainstream American sociocultural values of appearance may shape the development of body image disturbance and eating disorders. Some experimental research demonstrates that women report significantly greater increases in negative affect and body image disturbance and decreases in self-esteem after viewing thin models than after viewing inanimate objects, normal-weight models, and overweight women. The main goal of this study was to investigate whether the effects of viewing thin models are influenced by the ethnicity of the observer and/or the ethnic and racial similarity of the model to the observer. In addition, the study tested the extent to which social comparison tendency, trait appearance evaluation, ethnic identity, and racial identity may moderate these effects. In study 1, women rated the race, attractiveness, and thinness of a group of ethnically diverse models. Study 2 assessed affect, self-esteem, and body image in Euro-American (n = 105), African-American (n = 91), and Latina (n = 111) women before and after viewing ethnically self-similar models, self-different models, or control images. Results indicated that ethnic similarity between model and participants influenced affect such that increased social comparison tendency in Latina participants predicted increased negative affect after viewing Latina models. Additionally, the type of media images viewed and proposed moderators influenced affect and body image. As predicted, positive appearance evaluation was more strongly associated with positive feelings about one’s weight after viewing models and, in African-American and Latina women, increased idealization of Whiteness was associated with decreased positive feelings regarding one’s weight after viewing White models. Unexpectedly, increased social comparison tendency was associated with increased positive affect after viewing African-American models whereas increased social comparison tendency was associated with less positive affect after viewing Latina models. Finally, independent of media exposure, African-American women reported higher appearance-based self-esteem and body image than Euro-American and Latina women and increased social comparison tendency, decreased positive appearance evaluation, decreased ethnic identity, and increased racial identity idealizing Whiteness were each associated with undesirable levels of self-esteem and body image. Clinical implications and directions for future research are provided.

Although there have been only a few etiological studies that have examined the development and maintenance of body image in males, research fairly consistently reports that exposure and presumed comparison to images of ideal male bodies increases body dissatisfaction. Social comparison provides individuals with a mechanism by which to evaluate their body appearance to those around them. When individuals compare their bodies to those of others, they are attempting to gauge their standing or status relative to those around them, the results of which have inherent status implications. There is increasing empirical evidence that suggests perceived increases in status result in increased testosterone levels, whereas testosterone decreases when status is perceived as having been diminished. Thus, the core of the present study: can the process of comparing the appearance of one’s body to that of others affect the testosterone levels, body satisfaction, and mood of males? To examine the above research questions, a two-part study was designed. A pilot study was conducted with 117 male undergraduates primarily to examine the psychometrics of measures to be used in the main study. The measures appeared psychometrically sound and were thus used in the main study. In the main study, 129 male undergraduates were exposed to photographs of one of three male body types (i.e., lean/muscular, skinny, average) to determine whether or not exposure to the different body types differentially affected participants’ testosterone levels, body satisfaction, and mood. Results indicate that testosterone levels decreased over the course of the experiment in each of the three groups; however, the body type to which participants were exposed did not differentially affect participants’ testosterone levels. Body dissatisfaction was greater among participants who viewed lean/muscular bodies than those who viewed average bodies. Lastly, mood was not differentially affected by viewing different types of male bodies. Implications and possible explanations for these results are discussed.

Thesis (M.A.)--Ohio State University, 2008. / Title from first page of PDF file. Includes bibliographical references (p. 28-33).

Thesis (M.A.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains iii, 33 p. Includes abstract. Includes bibliographical references (p. 22-27).

Thesis (M.A.)--Western Kentucky University, 2009. / Includes bibliographical references (leaves 33-39).

Thesis (M.S.)--Eastern Illinois University, 2004. / Includes bibliographical references (leaves 92-98).

Thesis--University of Wisconsin-Madison. / Photocopy of typescript. Ann Arbor, Mich. : University Microfilms International, 1977. -- 21 cm. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 173-185).

Thesis (Ph. D. in Psychology)--Vanderbilt University, 2004. / Title from PDF title screen. Includes bibliographical references.

Thesis--PlanB (M.S.)--University of Wisconsin--Stout, 2000. / Includes bibliographical references.