Relations Among Milk and Non-Milk Beverage Consumption, Calcium, and Relative Weight in High-Weight Status Children

Relations among weight, calcium, and milk have received considerable attention, but inconsistencies remain regarding strength and direction of associations. Calcium, milk, other beverages, and weight status associations were examined among children >75th BMI percentile from three studies. Results indicated negative relations between z-BMI and non-whole milk and calcium in one sample, with lower z-BMI and percent body fat among older children drinking any non-whole milk. In one older child sample, z-BMI and percent body fat were higher for whole milk consumers. The only significant relation observed for other beverages was the negative association between juice and percent body fat in younger children. Milk, calcium, and child weight status associations are inconsistent, and appear dependent on milk type and child age.     

A Critical Test of the Waist-to-Hip Ratio Hypothesis of Women's Physical Attractiveness in Britain and Greece

Body mass index (BMI) and body shape as measured by the waist-to-hip ratio (WHR) have been reported to be the major cues to women's bodily attractiveness. The relative importance of each of these cues was examined cross-culturally in two distinct countries, Greece and Britain. Fifty Britons, 25 British-Greeks, and 25 participants in Greece were asked to rate a set of images of real women with known BMI and WHR. The results showed that, regardless of the cultural setting, BMI is the primary determinant of women's physical attractiveness, whereas WHR emerged as a significant predictor for the Greek groups but not the British group. This finding is discussed in terms of the different gender roles occupied by Britons and Greeks. The discussion critically evaluates evolutionary psychological and sociocultural explanations of preferences for body weight.     

Cognitive functions, bodily sensibility and the brain

Body representations traverse the whole of the brain. They provide vital sources of information for every facet of an animal’s behavior, and such direct neural connectivity of visceral input throughout the nervous system demonstrates just how strongly cognitive systems are linked to bodily representations. At each level of the neural axis there are visceral appraisal systems that are integral in the organization of action. Cognition is not one side of a divide and viscera the other, with action merely a reflexive outcome. There is no divide between cognition and bodily functions once the brain is involved. Cognitive mechanisms that permeate neural function are a cardinal piece of biological function and adaptation.     

大众媒体对女性身体意象的影响

大量研究证明,大众媒体会对女性的身体意象产生负面影响,造成女性身体不满意、饮食失调等。这篇文章回顾了已有研究,综述了媒体和女性身体意象的关系,以及媒体影响女性身体意象的四种相关理论及内在机制。最后,展望了未来的研究方向。     

Sport participation,body satisfaction and depressive symptoms in adolescence: a moderated-mediation analysis of gender differences

This research aimed to analyse the partial mediating role of body satisfaction in the relationship between sport participation and depressive symptoms, as well as to examine the moderating role of gender in these associations. A cross-sectional study was conducted with a sample of 1810 adolescents aged 13–18 years old who completed self-report measures regarding sport participation, body satisfaction and depressive symptoms. The results indicated that a higher frequency of sport participation was associated with a lower presence of depressive symptoms, both directly and through greater body satisfaction, although gender differences were found in this partial mediation model. It was detected that sport participation had a greater effect on positive body satisfaction among boys, whereas body dissatisfaction indicated a greater presence of depressive symptoms among girls. The results emphasize the need to implement gender-specific programmes to improve psychological adjustment in adolescents by promoting sport practice and body acceptance.     

Les objets connectés et applications de santé : étude exploratoire des perceptions,usages (ou non) et contextes d’usage

In a contemporary context of major health challenges, the market of digital technologies has increasingly developed in past years. This article aims to explore main profiles of use in relation to connected objects and health apps, as well as attitudes related to uses, non-uses and contexts of use. Therefore, our objective is to contribute to the scientific debate by proposing an empirical study in psychology that focusses on the perspectives of consumers and non-consumers of these technologies in the French-speaking part of Switzerland. To do this, a survey was conducted among participants of a large public health exhibition (n = 760). According to our results, the majority of respondents declare not having a connected object/health app and a third of non-users does not intend to acquire such technologies. Also, there is a trend among younger generations to have a connected object/health app. Concerning the contexts of use, such technologies are employed to self-track physical activity and eating practices. The degree of satisfaction of such use is rather high. Given these results, our analyses point out a divide within our sample, between individuals who seem resistant and declare not willing to have this kind of technology and those who use it in the long run. These results cast new light upon concrete uses and contexts of use among consumers and non-consumers of connected objects/health apps beyond techno-scientific promises that prevail today in our societies.     

Body mass index,peer victimization,and body dissatisfaction across 7 years of childhood and adolescence: Evidence of moderated and mediated pathways

Numerous studies have reported that children and adolescents who are overweight are more likely to get bullied, yet the literature is replete with methodological limitations. We examined the transactional associations between peer victimization and body mass index (BMI), considering potential mediating (body dissatisfaction) and moderating (biological sex) factors. Participants (n = 631) came from the McMaster Teen Study, where students were assessed annually between Grades 5–11, approximately half were girls (53.9%), and the majority were white (76.4%). Peer victimization (from Grade 5) and body dissatisfaction (from Grade 6) were self‐reported by students, while parents reported their child's height and weight (from Grade 5). Cascade models were built up sequentially using path analysis across 2‐year increments (Grades 5, 7, 9, and 11). The final model had excellent fit to the data (χ² = 73.961, df = 66, p = 0.234). Grade 5 peer victimization had a direct effect on BMI across a 2‐year period in girls (b = 0.59, SE = 0.21, p = 0.005) and boys (b = 0.82, SE = 0.30, p = 0.006), and an indirect effect on BMI via body dissatisfaction across a 4‐year period (b = 0.074, 95% CI = 0.012–0.152, p = 0.036). At no point did BMI directly increase risk for peer victimization, yet there were indirect effects via body dissatisfaction among girls but not boys. Peer victimization and body dissatisfaction were proximally and longitudinally related at every time point and there was a transactional association in late‐adolescence among girls but not boys. Targeting modifiable factors in the social (peer victimization) and psychological (body dissatisfaction) domains may limit accelerated weight gain and the health risks associated with excess adiposity.     

Meta-analysis of the effects of third-wave behavioural interventions on disordered eating and body image concerns: implications for eating disorder prevention

Third-wave behavioural interventions are increasingly popular for treating and preventing mental health conditions. Recently, researchers have begun testing whether these interventions can effectively targeting eating disorder risk factors (disordered eating, body image concerns). This meta-analysis examined whether third-wave behavioural interventions (acceptance and commitment therapy; dialectical behaviour therapy; mindfulness-based interventions; compassion-focused therapy) show potential for being effective eating disorder prevention programs, by testing their effects on eating disorder risk factors in samples without an eating disorder. Twenty-four studies (13 randomized trials) were included. Most studies delivered selective prevention programs (i.e. participants who reported elevated risk factor). Third-wave interventions led to significant pre–post (g = 0.59; 95% CI = 0.43, 0.75) and follow-up (g = 0.83; 95% CI = 0.38, 1.28) improvements in disordered eating, and significant pre–post improvements in body image (g = 0.35; 95% CI = 0.13, 0.56). DBT-based interventions were associated with the largest effects. Third-wave interventions were also significantly more efficacious than wait-lists (g = 0.39; 95% CI = 0.09, 0.69) in reducing disordered eating, but did not differ to other interventions (g = 0.25; 95% CI = –0.06, 0.57). Preliminary evidence suggests that third-wave interventions may have a beneficial effect in ameliorating eating disorder risk.     

Electroencephalographic evidence for improved visual working memory performance during standing and exercise

While a substantial body of research has investigated the effects of aerobic exercise on cognitive performance, few have monitored exercise‐concurrent cognitive processes via electroencephalography and fewer still using an event‐related potential (ERP) approach. As such, little is known regarding how the temporal dynamics of cognitive processing are influenced during aerobic activity. Here, we aimed to elucidate the influence of aerobic exercise on the temporal dynamics of concurrent visual working memory (VWM) performance. Participants performed a VWM retro‐cue task at rest and during aerobic exercise across two postural modalities: seated (using a stationary bicycle) and standing upright (using a treadmill). Three consecutive phases of the VWM processing pipeline were assessed by means of lateralized ERPs: access of VWM representations, response selection, and response execution. Aerobic exercise and upright posture were found to have significant effects on VWM performance, facilitating processing speed in the retro‐cue task. This facilitation arose primarily at an intermediary stage between the phases of accessing VWM representations and response selection. Our findings hold implications not only for understanding the influence of aerobic activity on VWM, but also for contemporary models of VWM that are built exclusively on data recorded during stationary, seated conditions.     

Toddlers' categorization of typical and scrambled dolls and cars

Previous research has demonstrated discrimination of scrambled from typical human body shapes at 15–18 months of age [Slaughter, V., & Heron, M. (2004). Origins and early development of human body knowledge. Monographs of the Society for Research in Child Development, 69]. In the current study 18-, 24- and 30-month-old infants were presented with four typical and four scrambled dolls in a sequential touching procedure, to assess the development of explicit categorization of human body shapes. Infants were also presented with typical and scrambled cars, allowing comparison of infants’ categorization of scrambled and typical exemplars in a different domain. Spontaneous comments regarding category membership were recorded. Girls categorized dolls and cars as typical or scrambled at 30 months, whereas boys only categorized the cars. Earliest categorization was for typical and scrambled cars, at 24 months, but only for boys. Language-based knowledge, coded from infants’ comments, followed the same pattern. This suggests that human body knowledge does not have privileged status in infancy. Gender differences in performance are discussed.