Attention and memory biases toward body-related images among restrained eaters

The effects of media and peers on negative body image among Chinese college students: a chained indirect influence model of appearance comparison and internalization of the thin ideal

BACKGROUND

Negative body image is a common psychological phenomenon among Chinese college students meriting investigation. Peers and the media are important factors that negatively influence body image. This study explored the mechanisms of media and peers promoting negative body image among Chinese college students.

METHOD

Data from 407 college students (173 men and 234 women) were collected using the Revised Social and Cultural Attitude Questionnaire of Appearance, Appearance Comparison Scale, Peer Impact Scale, and Negative Body Image Scale.

RESULTS

Correlational analysis results demonstrated that media attention was not significantly correlated with negative body image. All other variables were significantly positively correlated. Path analysis results indicated that the direct effect of media attention on negative body image was not significant, while the direct effect of peer impact was significant. In addition, appearance comparison and internalization of the thin ideal acted as a chained indirect effect between negative body image, media attention, and peer impact.

CONCLUSIONS

The research revealed that focusing on perfect bodies displayed in the media did not produce a negative body image. However, focusing on the media and peer conversations regarding the body caused the participants to compare appearances and internalize ideal body shape standards, leading to negative self-evaluations.

Female Body Dissatisfaction and Attentional Bias to Body Images Evaluated Using Visual Search

One factor, believed to predict body dissatisfaction is an individual’s propensity to attend to certain classes of human body image stimuli relative to other classes. These attentional biases have been evaluated using a range of paradigms, including dot-probe, eye-tracking and free view visual search, which have yielded a range of – often contradictory – findings. This study is the first to employ a classic compound visual search task to investigate the relationship between body dissatisfaction and attentional biases to images of underweight and with-overweight female bodies. Seventy-one undergraduate females, varying their degree of body dissatisfaction and Body Mass Index (BMI), searched for a horizontal or vertical target line among tilted lines. A separate female body image was presented within close proximity to each line. On average, faster search times were obtained when the target line was paired with a uniquely underweight or with-overweight body relative to neutral (average weight only) trials indicating that body weight-related images can effectively guide search. This congruent search effect was stronger for individuals with high eating restraint (a behavioral manifestation of body image disturbance) when search involved a uniquely underweight body. By contrast, individuals with high BMIs searched for lines more rapidly when paired with with-overweight rather than underweight bodies, than did individuals with lower BMIs. For incongruent trials – in which a unique body was paired with a distractor rather than the target – search times were indistinguishable from neutral trials, indicating that the deviant bodies neither compulsorily “captured” attention nor reduced participants’ ability to disengage their attention from either underweight or with-overweight bodies. These results imply the existence of attentional strategies which reflect one’s current body and goal-directed eating behaviors.

Visual attention mediates the relationship between body satisfaction and susceptibility to the body size adaptation effect

Body size misperception–the belief that one is larger or smaller than reality–affects a large and growing segment of the population. Recently, studies have shown that exposure to extreme body stimuli results in a shift in the point of subjective normality, suggesting that visual adaptation may be a mechanism by which body size misperception occurs. Yet, despite being exposed to a similar set of bodies, some individuals within a given geographical area will develop body size misperception and others will not. The reason for these individual difference is currently unknown. One possible explanation stems from the observation that women with lower levels of body satisfaction have been found to pay more attention to images of thin bodies. However, while attention has been shown to enhance visual adaptation effects in low (e.g. rotational and linear motion) and high level stimuli (e.g., facial gender), it is not known whether this effect exists in visual adaptation to body size. Here, we test the hypothesis that there is an indirect effect of body satisfaction on the direction and magnitude of the body fat adaptation effect, mediated via visual attention (i.e., selectively attending to images of thin over fat bodies or vice versa). Significant mediation effects were found in both men and women, suggesting that observers’ level of body satisfaction may influence selective visual attention to thin or fat bodies, which in turn influences the magnitude and direction of visual adaptation to body size. This may provide a potential mechanism by which some individuals develop body size misperception–a risk factor for eating disorders, compulsive exercise behaviour and steroid abuse–while others do not.

Restrained Eating and Food Cues: Recent Findings and Conclusions

PURPOSE OF REVIEW

The purposes of the present review are to organize the recent literature on the effects of food cues on restrained and unrestrained eaters and to determine current directions in such work.

RECENT FINDINGS

Research over the last several years involves both replicating the work showing that restrained eaters respond to attractive food cues by eating more but unrestrained eaters show less responsiveness and extending this work to examine the mechanisms that might underlie this differential responsiveness. Labeling a food as healthy encourages more eating by restrained eaters, while diet-priming cues seem to curtail their consumption even in the face of attractive food cues. Work on cognitive responses indicates that restrained (but not unrestrained) eaters have both attention and memory biases toward food cues. Restrained eaters attend more strongly to food- and diet-related cues than do unrestrained eaters, as evidenced in both their eating behavior and their attention and memory responses to such cues. These effects interact with expectations and manner of presentation of such cues. What remains to be understood is the meaning and mechanism of the attention bias toward food cues in restrained eaters and the implications of such bias for overeating and overweight more broadly speaking.

The role of memory in the relationship between attention toward thin-ideal media and body dissatisfaction

PURPOSE

This study examined the causal relationship between attention and memory bias toward thin-body images, and the indirect effect of attending to thin-body images on women's body dissatisfaction via memory.

METHOD

In a 2 (restrained vs. unrestrained eaters) × 2 (long vs. short exposure) quasi-experimental design, female participants (n = 90) were shown images of thin models for either 7 s or 150 ms, and then completed a measure of body dissatisfaction and a recognition test to assess their memory for the images.

RESULTS

Both restrained and unrestrained eaters in the long exposure condition had better recognition memory for images of thin models than did those in the short exposure condition. Better recognition memory for images of thin models was associated with lower body dissatisfaction. Finally, exposure duration to images of thin models had an indirect effect on body dissatisfaction through recognition memory.

CONCLUSIONS

These findings suggest that memory for body-related information may be more critical in influencing women's body image than merely the exposure itself, and that targeting memory bias might enhance the effectiveness of cognitive bias modification programs.

Attention and recognition biases associated with stature dissatisfaction among young men in China

This research evaluated information-processing biases related to height dissatisfaction among young Chinese men. In Study 1, 32 highly stature dissatisfied (HSD) men and 36 less stature dissatisfied (LSD) men performed a dot probe task featuring height-related words and neutral words. HSD men were significantly slower than LSD men were in responding to probes that followed short stature words, but the groups did not differ in response speeds to probes that followed tall stature or neutral words. In Study 2, 33 HSD men and 34 LSD men completed an implicit learning task followed by a word recognition task. HSD men recognized significantly more short stature words from the initial task, but recognition accuracy for other word types did not differ between groups. Together, these findings suggest that HSD men are more inclined than LSD men to selectively avoid cues that reflect shortness in stature and to selectively recognize such cues later.