Energy landscapes on polymerized liquid crystal interfaces.

We measure and model monolayers of concentrated diffusing colloidal probes interacting with polymerized liquid crystal (PLC) planar surfaces. At topological defects in local nematic director profiles at PLC surfaces, we observe time-averaged two-dimensional particle density profiles of diffusing colloidal probes that closely correlate with spatial variations in PLC optical properties. An inverse Monte Carlo analysis of particle concentration profiles yields two-dimensional PLC interfacial energy landscapes on the -scale, which is the inherent scale of many interfacial phenomena (, self-assembly, adsorption, diffusion).

Effect of the Frustration of Psychological Needs on Addictive Behaviors in Mobile Videogamers-The Mediating Role of Use Expectancies and Time Spent Gaming.

Casual videogames (CVGs), played on smartphones, are becoming increasingly popular, especially among females and adults. Whereas the addictive potential of online (computer) videogames is well-established, there is yet insufficient evidence for Internet gaming disorder (IGD) in mobile gamers and for the mediating role of some mechanisms involved. The aim of this study is to investigate the impact of the frustration of psychological needs on mobile videogamers' addictive behavior as well as the role of cognitions (game-use expectancies) and behaviors (time spent playing) through a hypothesized serial mediation model, while controlling for important correlates, such as game genre, age, gender and payment during play.

May the passion be with you: The addictive potential of collectible card games, miniatures, and dice of the Star Wars universe.

Background And Aims: In recent years, we have witnessed a growing research interest in behavioral addictions and in pleasurable behaviors that generate a certain discomfort in the people who engage in them. The objective of this study was to assess if users of collectible card games, miniatures, and dice from the Star Wars Universe Games (SWUG) may also present criteria of addiction and if the presence of these criteria is related to demographic variables, game-playing habits, and other variables.

Methods: SWUG players were contacted through specialized gaming chats, and 218 of them completed the Internet Gaming Disorder Scale - Short Form (IGDS-SF9), a scale that assesses motivation to engage in the game (Massively Multiplayer Online Motivations Scale), the Rosenberg Self-Esteem Questionnaire, the Diener Satisfaction with Life Scale, and a question for the self-assessment of addiction.

Trends in Scientific Literature on Addiction to the Internet, Video Games, and Cell Phones from 2006 to 2010.

Background: The goals of the present work were to retrieve the scientific articles published on addiction to the Internet, video games, and cell phones and to analyze the pattern of publications in this area (who is doing the research, when and where it is taking place, and in which journals it is being published), to determine the research being conducted as well as to document geographical trends in publication over time in three types of technological addictions: Internet, cell phones, and video games.

Methods: Articles indexed in PubMed and PsycINFO between 2006 and 2010 related to the pathological use of Internet, cell phones, and video games were retrieved. Search results were reviewed to eliminate articles that were not relevant or were duplicates.

Relationship between passion and motivation for gaming in players of massively multiplayer online role-playing games.

Passion represents one of the factors involved in online video gaming. However, it remains unclear how passion affects the way gamers are involved in massively multiplayer online role-playing games (MMORPGs). The objective of the present study was to analyze the relationships between passions and motivations for online game playing.

Interaction with the game and motivation among players of massively multiplayer online role-playing games.

Knowledge about users interacting with Massively Multiplayer Online Role-Playing Games (MMORPG) is fundamental in order to prevent their potential negative effects on behavior. For this reason, the present study analyzed the relationship between styles of play and motivations. An online questionnaire asking for socio-demographic details, playing style, characteristics of the game played and motivations for playing, was answered by 430 Spanish-speaking MMORPG players (45.