Changing to Impress: Testing a Mediation Model from Instagram Self-presentation to Cosmetic Surgery.

BACKGROUND: This study examined the relationship between false self-presentation on Instagram and consideration of cosmetic surgery through the mediating role of body image control in photos (BICP), photo manipulation, and body shame. We predicted that false self-presentation on Instagram was indirectly associated with cosmetic surgery intentions through the aforementioned constructs. METHODS: A total of 504 young Italian adults (28.2% males, 18-30 years) completed an online survey. They completed a questionnaire containing the Self-presentation on Instagram Questionnaire, the Body Image Control in Photos Questionnaire-revised, the Photo Manipulation Scale, the Objectified Body Consciousness Scale, and the Acceptance of Cosmetic Surgery Scale. The pattern of associations between the constructs was analyzed via path analysis. RESULTS: The results show that false self-presentation on Instagram was associated with photo manipulation, both directly and indirectly, through BICP. Furthermore, photo manipulation was linked to body shame, but neither of them was associated with cosmetic surgery intentions. Finally, false self-presentation on Instagram was associated with the consideration of cosmetic surgery only through the mediation of BICP. CONCLUSION: Findings indicate that self-presentation styles might affect Instagram photo behaviors and individuals' cosmetic surgery intentions, suggesting that surgeons should fully examine patients' motivations before providing them with services. Furthermore, intervention programs encouraging users to present a more authentic version of themselves online might reduce the risk of self-objectification and reduce the consideration of procedures aimed at modifying one's body for purely aesthetic reasons. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Photo-Switchable Peroxidase/Catalase-Like Activity of Carbon Quantum Dots.

Nanozymes possess multi-enzyme activities over the natural enzymes, which produce multi-pathway synergistic effects for varies of biomedical applications. Unfortunately, their multi-enzyme activities are in fighting, significantly reducing the synergistic effects. Dynamic regulation of their multi-enzyme activities is the bottleneck for intelligent therapies. Herein, we construct a novel oxygen-nitrogen functionalized carbon quantum dots (O/N-CQDs) with peroxidase-like (Reactive oxygen species (ROS) producer) activity. Interestingly, the peroxidase-like activity can be reversibly converted to catalase-like (ROS scavenger) activity under visible light irradiation. It is found that both the peroxidase/catalase-like activity of O/N-CQDs can be precisely manipulated by the light intensity. The mechanism of switchable enzyme activities is attributed to the polarization of quinoid nitrogen in polyaniline (PANI) precursor retained on O/N-CQDs under visible light, which consumes the ROS to produce O2 and H2O. As a proof-of-concept demonstration, we are able to non-intrusively up and down regulate the ROS level in cells successfully by simply switching off and on the light respectively, potentially facilitating the precise medicine based on the development of the disease. Indeed, the photo-switchable peroxidase/catalase-like activity of O/N-CQDs opens a non-invasive strategy for better manipulations of the multi-activity of nanozymes, promising their wider and more intelligent biomedical applications.

The relation between body dysmorphic disorder symptoms and photo-based behaviors: is body appreciation a protective factor?

Body image and social media use seem to be significantly associated. In particular, photo-based behaviors (i.e., photo investment and manipulation) seemed to have a positive relation with negative body image dimensions. On the other hand, positive body image dimensions could demonstrate the role of moderators. However, current available studies did not support these findings consistently. Moreover, available studies did not assess Body Dysmorphic Disorder (BDD) and Muscle Dysmorphia (MD) symptoms. To address these issues, the associations between BDD/MD symptoms and photo-based behaviors and the possible moderation of body appreciation were examined in a sample of 485 social media users (71.1 % women). Findings from hierarchical multiple regressions highlighted that BDD symptoms were significantly associated with photo investment and manipulation, and MD symptoms were significantly associated with photo investment only. Body appreciation demonstrated a moderating role in the relation involving photo investment and BDD symptoms. Current findings supported that photo-based behaviors are significantly associated with negative body image dimensions, while positive body image demonstrated only a marginal protective role.

Which are the Effects of Body-Objectification and Instagram-Related Practices on Male Body Esteem? A Cross-Sectional Study.

Objective: According to the objectification framework, media pressure toward body models promotes the internalization of beauty ideals that negatively influence individuals' body image and self-esteem. Historically, women have been the main target of sociocultural pressures. However, research has recently suggested that self-objectification is a male phenomenon as well, which can be inscribed in men's body experiences. Nevertheless, fewer studies have specifically focused on the male experience and general consequences of body-objectification are yet to be extensively analyzed regarding males' body image features. The current cross-sectional study explores the consequences of body-objectification on male body esteem, specifically testing the predictive role of exercising/dietary habits, body-objectification features, and SNS-related practices on male body esteem. Method: A total of 238 male participants (mean age = 24.28 years, SD = 4.32) have been involved in an online survey. Three hierarchical analyses were performed to test the influence of objectified body consciousness and social networking-related experiences (i.e. Instagram intensity use, photo manipulation, selfie feedback investment) on young men's body esteem with specific reference to the weight, appearance, and attribution features of the Body Esteem Scale. Results: Findings highlighted that body shame played an interesting key role, influencing negatively all the body esteem dimensions, thus highlighting that attention needs to be deserved on this feature of OBC regarding males' experience. On the contrary, appearance control-related dimensions positively influenced body esteem. Overall, findings confirmed that objectification theory can adequately mark a pathway by which media imagery is internalized also by men and may negatively affect their body esteem. Conclusions: Despite some limitations, this study may contribute to enlarging our knowledge on male body image and self-objectification experience and support literature shattering the stereotype that body dissatisfaction is a "female-exclusive" issue. Likewise, beyond some questioning positions, these findings also encourage further exploration of a healthier "control dimension", including body appearance-related activities and beliefs.

The effects of self-disclaimer Instagram captions on young women's mood and body image: The moderating effect of participants' own photo manipulation practices.

The current experiment investigated the impact of attaching self-disclaimer captions (i.e., captions about whether photos had been edited) to thin-ideal Instagram photos on young women's body image and mood. Participants were 311 undergraduate students aged 18-25 years. Participants were randomly assigned to view images of a thin woman on Instagram with no captions, or with a generic, specific, or warning self-disclaimer caption, and completed pre and post measures of body image and mood and a questionnaire about their own photo-editing practices. Across all conditions, exposure to the images resulted in decreased body satisfaction, likelihood to compare one's body to another's, happiness, confidence, and anxiety. There was no significant effect of disclaimer type on body image or mood, and therefore no type of self-disclaimer had an ameliorating effect. However, specific disclaimers were superior to the other disclaimers at reducing likelihood to compare one's body to another's, for women high on photo manipulation. Future research should be conducted in adolescent girls and men.

Photo manipulation as a predictor of facial dissatisfaction and cosmetic procedure attitudes.

Photo manipulation (editing photos prior to sharing them) has become increasingly popular on social media. While intended to enhance a photo's quality, this behaviour has been linked to heightened body image concerns. The present study investigated whether social media photo manipulation predicts facial dissatisfaction, attitudes towards cosmetic procedures, and intentions to undergo facial cosmetic procedures in young women, and the moderating role of self-discrepancy therein. Australian women (N = 227, 17-25 years) completed an online cross-sectional questionnaire. Social media photo manipulation was associated with greater facial dissatisfaction, cosmetic procedure attitudes/intentions, and appearance-based self-discrepancy. Photo manipulation was a significant predictor of cosmetic procedure attitudes and intentions, but not of facial dissatisfaction. Appearance-based self-discrepancy significantly moderated the relationship between photo manipulation and facial dissatisfaction, whereby the relationship between photo manipulation and facial dissatisfaction was stronger for those with lower self-discrepancy. Results highlight a key role for photo manipulation and appearance-based self-discrepancies in relation to facial dissatisfaction for young women. They also provide insight into predictors of cosmetic procedure intentions and attitudes. This signals a pressing need to develop effective intervention and prevention programs to help young women limit their appearance-based photo manipulation behaviours for use on social media.

Can people identify original and manipulated photos of real-world scenes?

Advances in digital technology mean that the creation of visually compelling photographic fakes is growing at an incredible speed. The prevalence of manipulated photos in our everyday lives invites an important, yet largely unanswered, question: Can people detect photo forgeries? Previous research using simple computer-generated stimuli suggests people are poor at detecting geometrical inconsistencies within a scene. We do not know, however, whether such limitations also apply to real-world scenes that contain common properties that the human visual system is attuned to processing. In two experiments we asked people to detect and locate manipulations within images of real-world scenes. Subjects demonstrated a limited ability to detect original and manipulated images. Furthermore, across both experiments, even when subjects correctly detected manipulated images, they were often unable to locate the manipulation. People's ability to detect manipulated images was positively correlated with the extent of disruption to the underlying structure of the pixels in the photo. We also explored whether manipulation type and individual differences were associated with people's ability to identify manipulations. Taken together, our findings show, for the first time, that people have poor ability to identify whether a real-world image is original or has been manipulated. The results have implications for professionals working with digital images in legal, media, and other domains.