Do You See What I See: The Influence of Self-Objectification on Appearance Anxiety, Intrinsic Motivation, Interoceptive Awareness, and Physical Performance

Objectification theory suggests that when individuals take on an observer’s perspective of their physical appearance (known as self-objectification), they experience an increase in body shame and anxiety and a decrease in motivation and bodily awareness. The purpose of this study was to determine if self-objectification could impact social physique anxiety, intrinsic motivation, and bodily awareness as well as physical performance. Undergraduate female students (N=54) were recruited to participate in a Consumer Behaviour study (cover story). Participants were randomly assigned to a swimsuit or sweater condition, completed cover story and body image measures, changed into the clothing based upon randomization, then completed state body image measures and performed a series of balance tasks. Women in the swimsuit group experienced greater state self-objectification and reported greater amounts of body-related shame and appearance anxiety and lower amounts of intrinsic motivation. In addition, self-objectification led to restricted arms, trunk, and leg movements during a 1-leg stand. Findings could have implications for promoting positive experiences during physical activity, such as sport, exercise or rehabilitation settings

Software for web-based tic suppression training [version 2; referees: 3 approved]

Exposure and response prevention (ERP) is a first-line behavior therapy for obsessive-compulsive disorder and Tourette syndrome (TS). However, ERP for tic disorders requires intentional tic suppression, which for some patients is difficult even for brief periods. Additionally, practical access to behavior therapy is difficult for many patients, especially those in rural areas. The authors present a simple, working web platform (TicTrainer) that implements a strategy called reward-enhanced exposure and response prevention (RE–ERP). This strategy sacrifices most expert therapist components of ERP, focusing only on increasing the duration of time for which the user can suppress tics through automated differential reinforcement of tic-free periods (DRO). RE–ERP requires an external tic monitor, such as a parent, during training sessions. The user sees increasing digital rewards for longer and longer periods of successful tic suppression, similar to a video game score. TicTrainer is designed with security in mind, storing no personally identifiable health information, and has features to facilitate research, including optional masked comparison of tics during DRO vs. noncontingent reward conditions. A working instance of TicTrainer is available from https://tictrainer.com

A Wikipedia Literature Review

This paper was originally designed as a literature review for a doctoral dissertation focusing on Wikipedia. This exposition gives the structure of Wikipedia and the latest trends in Wikipedia research

Incentives for quick penetration of electric vehicles in five European countries: perceptions from experts and stakeholders.

On the basis of 143 responses from experts and stakeholders from Germany, Austria, Spain, the Netherlands and the UK, we assess the perceived impact of a range of incentives for the uptake of electric vehicles (EVs). We find that the incentive that most respondents consider to have a positive impact is the development of charging infrastructure, with 75% stating so. This is followed by purchase subsidies, to narrow the difference in price of an EV and that of an internal combustion engine vehicle, with 68% of respondents stating that they have a strong or at least a partial positive impact. Pilot/trial/demonstrations of EVs, to expose potential buyers to EVs, are also perceived to have a positive effect, with 66% of respondents stating so. Tax incentives, which like purchase subsidies, narrow the gap between the total operating cost of an EV and that of a conventional vehicle, are also perceived to have a positive impact by 65% of respondents. Other incentives that are perceived to have a positive influence include climate change and air quality policies, consumer information schemes and differential taxation applied to various fuels and energy vectors

Teams or Tournaments? A Field Experiment on Cooperation and Competition in Academic Achievement

This paper assesses the effect of two stylized and antithetic non-monetary incentive schemes on students’ effort. We collect data from a field experiment where incentives are exogenously imposed, performance is monitored and individual characteristics are observed. Students are randomly assigned to a tournament scheme that fosters competition between coupled students, a cooperative scheme that promotes information sharing and collaboration between students and a control treatment in which students can neither compete, nor cooperate. In line with theoretical predictions, we find that competition induces higher effort with respect to cooperation and cooperation does not increase effort with respect to the baseline. However, this is true only for men, while women do not seem to react to non-monetary incentives.

The chebop system for automatic solution of differential equations

In MATLAB, it would be good to be able to solve a linear differential equation by typing u = L\f, where f, u, and L are representations of the right-hand side, the solution, and the differential operator with boundary conditions. Similarly it would be good to be able to exponentiate an operator with expm(L) or determine eigenvalues and eigenfunctions with eigs(L). A system is described in which such calculations are indeed possible, based on the previously developed chebfun system in object-oriented MATLAB. The algorithms involved amount to spectral collocation methods on Chebyshev grids of automatically determined resolution