Search

Video chat continues to play an increasing role in the personal and professional lives of many people. When meeting someone for the first time via video chat, traditional icebreakers such as discussion questions may be used to ease conversation and facilitate disclosure; however, icebreaker questions have been shown to be less effective at facilitating relationships for some people than others. In this paper, we propose synchronously sharing online media as a more flexible, robust, and effective method of facilitating initial interactions in video chat. Our comparative study of icebreaker questions and media sharing reveals that shared media supports a different style of conversation than icebreakers, but results in equal levels of self-disclosure and trust along with higher levels of warranting and relatedness. Further, while the effectiveness of icebreakers in building trust is lower for individuals low in agreeableness, media sharing results in similar trust formation at all levels of agreeableness. Synchronous media sharing is a promising way of leveraging the digital context of video chat to better support early stages of relationships.

The treatment of social anxiety through digital exposure therapy is challenging due to the cognitive properties of social anxiety-individuals need to be fully engaged in the task and feel themselves represented in the social situation; however, avatar customization has been shown to increase both engagement and social presence. In this paper, we harness techniques used in commercial games, and investigate how customizing self-representation in a novel digital exposure task for social anxiety influences the experience of social threat. In an online experiment with 200 participants, participants either customized their avatar or were assigned a predefined avatar. Participants then controlled the avatar through a virtual shop, where they had to solve a math problem, while a simulated audience within the virtual world observed them and negatively judged their performance. Our findings show that we can stimulate the fear of evaluation by others in our task, that fear is driven primarily by trait social anxiety, and that this relationship is strengthened for people higher in trait social anxiety. We provide new insights into the effects of customization in a novel therapeutic context, and embed the discussion of avatar customization into related work in social anxiety and human-computer interaction. ?

Video games frequently invoke high-pressure circumstances in which player performance is crucial. These high-pressure circumstances are incubators for 'choking' and 'clutching'-phenomena that broadly address critical failures and successes in performance, respectively. The eruption of esports into the mainstream has vitalized the need to understand performance in video games, and particularly in competitive games spaces. In this work, we explore the potential mechanisms behind choking and clutching and how they are related to player traits and tendencies. We report the results of multiple regression analyses, finding that the propensity to choke is positively correlated with Reinvestment, Obsessive Passion, and Public Self-Consciousness, as well as Approach and Avoidance coping styles. Likewise, we find that the propensity to clutch is negatively correlated with Social Anxiety, and positively with Private Self-Consciousness and player experience with competitive gaming. We propose that these findings can be utilized to scaffold and support performance in high-pressure gaming spaces, such as esports. This work represents an initial step in the empirical exploration of choking and clutching in competitive video game contexts.

In Motive Disposition Theory, the affiliation motive describes our need to form mutually satisfying bonds, whereas the power motive is the wish to influence others. To understand how these social motives shape play experience, we explore their relationship to Self-Determination Theory and Flow Theory in League of Legends. We find that: higher intimacy motivation is associated with greater relatedness satisfaction, autonomy satisfaction, enjoyment, and the flow dimension of absorption; higher prosocial motivation with more effort invested and the flow dimension fluency of performance; and higher dominance motivation with lower relatedness satisfaction but higher competence satisfaction and increased flow in both dimensions. We demonstrate that in addition to being driven to satisfy universal needs, players also possess individualized needs that explain our underlying motives and ultimately shape our gaming preferences and experiences. Our results suggest that people do not merely gravitate towards need-supportive situations, but actively seek, change, and create situations based on their individualized motives.

With ongoing interest in the relationship between videogame and mental health alongside recent focus on gaming's role in coping with stressful life events, we sought to explore the relationship between videogame play and wellbeing among people experiencing their first episode of psychosis. Specifically, we aimed to explore the associations between videogame play and wellbeing among consumers of a first episode psychosis (FEP) service and further to compare their motivations for play, need satisfaction, passion for play and wellbeing to a control group. A sample of 88 people experiencing FEP (57 who played videogames and 31 who did not) and a control sample of 46 (all of whom played videogames) completed a survey containing a range of questionnaires related to the variables of interest. Key findings include that among those experiencing FEP, people who played videogames reported better wellbeing outcomes than those who did not. Among participants who played videogames, the FEP sample reported lower levels of need satisfaction through gaming, lower levels of harmonious passion, higher levels of external types of motivation and lower levels of internal types of motivation for play than the control group. Finally, the relationships between passion orientation (both harmonious and obsessive) and psychological distress were stronger in the control group than the FEP sample, suggesting that passion for gaming may be less influential on wellbeing for those experiencing FEP.

BACKGROUND Developing food-based dietary guidelines (FBDGs) for infants and toddlers is a complex task that few countries have attempted. OBJECTIVES Our objectives are to describe the process of food pattern modeling (FPM) conducted to develop FBDGs for the Dietary Guidelines for Americans, 2020-2025 for infants 6 to

Background Food insecurity is associated with poorer nutrient intakes from food sources and lower dietary supplement use. However, its association with total usual nutrient intakes, inclusive of dietary supplements, and biomarkers of nutritional status among US children remains unknown. Objective The objective was to assess total usual nutrient intakes, Healthy Eating Index-2015 (HEI-2015) scores, and nutritional biomarkers by food security status, sex, and age among US children. Methods Cross-sectional data from 9147 children aged 1-18 y from the 2011-2016 NHANES were analyzed. Usual energy and total nutrient intakes and HEI-2015 scores were estimated using the National Cancer Institute method from 24-h dietary recalls. Results Overall diet quality was poor, and intakes of sodium, added sugars, and saturated fat were higher than recommended limits, regardless of food security status. Food-insecure girls and boys were at higher risk of inadequate intakes for vitamin D and magnesium, and girls also had higher risk for inadequate calcium intakes compared with their food-secure counterparts, when total intakes were examined. Choline intakes of food-insecure children were less likely to meet the adequate intake than those of their food-secure peers. No differences by food security status were noted for folate, vitamin C, iron, zinc, potassium, and sodium intakes. Food-insecure adolescent girls aged 14-18 y were at higher risk of micronutrient inadequacies than any other subgroup, with 92.8% (SE: 3.6%) at risk of inadequate intakes for vitamin D. No differences in biomarkers for vitamin D, folate, iron, and zinc were observed by food security status. The prevalence of iron deficiency was 12.7% in food-secure and 12.0% in food-insecure adolescent girls. Conclusions Food insecurity was associated with compromised intake of some micronutrients, especially among adolescent girls. These results highlight a need for targeted interventions to improve children's overall diet quality, including the reduction of specific nutrient inadequacies, especially among food-insecure children. This study was registered at clinicaltrials.gov as NCT03400436.

Elevated plasma methylmalonic acid (MMA) and/or total homocysteine (tHcy), as well as low serum vitamin B12 and/or holotranscobalamin (holoTC) are indicative of vitamin B12 deficiency. Combined indicators (cB12), which pool some or all 4 markers into an index, may be a more reliable diagnostic tool to overcome inconclusive diagnoses with individual markers.We aimed to describe different cB12 score combinations and estimate the prevalence of low or transitional vitamin B12 status compared with individual markers.Using cross-sectional data for B12, MMA, and tHcy in persons ≥20 y participating in NHANES 1999-2004 (n = 12,335), we examined raw and covariate-adjusted regression models to assess determinants of 3cB12 (all 3 markers) and combinations of 2cB12 (2 markers).3cB12 was significantly associated with B12 (Spearman r = 0.75), MMA (r = -0.70), and tHcy (r = -0.59). The 3cB12 reference interval (2.5th to 97.5th percentile) was -0.538 to 1.60. In covariate-adjusted models, we found no association of 3cB12 with age; adult females and users of B12 supplements had higher, while adults with advanced chronic kidney disease had lower 3cB12 levels regardless of race-Hispanic origin group (self-reported). Only 2.7% of adults had low or transitional vitamin B12 status using the proposed cB12 cutoff of ≤-0.5, while the prevalence of low (or low-normal) status depended on the selected individual marker and its cutoff: 2.2% and 13% for B12 148 and 148-222 pmol/L, respectively; 6.0% for MMA exceeding an age-specific cutoff (250-320 nmol/L); and 8.4% for tHcy 13 µmol/L. The reference intervals for B12, MMA, and tHcy overlapped from the low (-2.5) to the transitional (-2.5 to -0.5) and to the adequate (-0.5) cB12 categories.Vitamin B12 deficiency may be overestimated among US adults when individual, conventional markers are used. When only 2 markers are available, the combination of B12 and MMA provides results comparable to 3cB12.

Measuring the dietary intakes of individuals for research and monitoring purposes is notoriously challenging and is subject to both random and systematic measurement error. In this review, the strengths and limitations of current methods to assess dietary and supplemental exposures are described. Traditional methods of dietary assessment include food records, food frequency questionnaires, 24-hour recalls, and screening tools; digital and mobile methods that leverage technology are available for these traditional methods. Ultimately, the choice of assessment method is dependent upon the research question, the study design, sample characteristics, and the size of the sample, to name just a few. Despite their challenges, dietary assessment tools are an important dimension of nutrition research and monitoring.

The objective of this study was to determine the success of the natural crowns of endodontically treated canine teeth in pet dogs, instrumented and obturated using rotary driven non-taper nickel titanium files, through an occlusal access preparation, without the placement of a prosthetic cast metal crown. A search of medical records at a private veterinary dental referral practice was conducted to identify pet dogs having had endodontic treatment of one or more canine teeth over an eleven-year period (2007-2018). Follow up, performed by the same veterinary dental specialist, included a complete oral health assessment under general anesthesia and included intraoral radiography thereby allowing close visual examination of the crown and restoration as well as assessing endodontic success. Time to follow up was between two and nine years after treatment with a mean of 4.5 years. Analysis revealed that 29/29 (100%) of the treated crowns maintained their stability and did not require extraction. 5/29 (17.2%) of the treated teeth had an enamel fracture requiring additional treatment to the crown after the initial treatment; 1/29 (3.4%) had additional abrasion but did not require treatment and 23/29 (79.3%) were found to have sustained no additional damage. This study supports endodontic treatment without the placement of a prosthetic crown in canine teeth in pet dogs when an occlusal access site is used as described in this paper. Further study is required on the increased risk of fracture of the remaining unaltered canine teeth.