With the pervasion of social media, topic identification in short texts attracts increasing attention in recent years. However, in nature the texts of social media are short and noisy, and the structures are sparse and dynamic, resulting in difficulty to identify topic categories exactly from online social media. Inspired by social science findings that preference consistency and social contagi...

Equipoise is widely regarded to be an essential prerequisite for the ethical conduct of a randomised controlled trial. There are some circumstances however, under which it is acceptable to conduct a randomised controlled trial (RCT) in the absence of equipoise. Limited access to the preferred intervention is one such circumstance. In this paper we present an example of a randomised trial in whi...

OBJECTIVE Children with attention deficit hyperactivity disorder (ADHD) experience many peer interaction problems and are at risk of peer rejection and victimisation. Although many studies have investigated problematic peer functioning in children with ADHD, this research has predominantly focused on boys and studies investigating girls are scant. Those studies that did examine girls, often use...

We evaluate the importance of callous-unemotional (CU) traits as a personality construct in isolation from other facets of psychopathy. Specifically, we review research suggesting that these traits are useful for designating a subgroup of youth with serious conduct problems who differ from other antisocial youth on important biological, emotional, cognitive, and social characteristics. In addit...

While the popularity of social network applications continues to grow, increasing cases of social networkmental disorders (SNMDs) are also noted. For behavioral therapy of SNMDs, an idea, similar to providing electronic cigareŠes to addictive smokers, is to substitute highly-addictive newsfeeds with safer, less-addictive ones to those users. Nevertheless, this idea faces two major challenges: 1...

Nowadays, people conduct a lot of activities with their online social networks. With the large amount of social data available, quantitative analysis of social influence becomes feasible. In this PhD project, we aim to study users’ social influence at the community level, mainly because users in social networks are naturally organized in communities and communities play fundamental roles in und...

BACKGROUND Although primarily used for social networking and often used for social support and dissemination, data on social media platforms are increasingly being used to facilitate research. However, the ethical challenges in conducting social media research remain of great concern. Although much debated in the literature, it is the views of the public that are most pertinent to inform future...

With the rapid growth of social networks and the increased rate of adoption by patients, healthcare organizations are progressively adopting online community-based initiatives to conduct healthcare activities. Considering the enormous potential online communities hold, for practitioners to get closer to their patients, online communities could be effectively utilized to conduct health managemen...

Longstanding interest has been directed toward the etiology of sociopolitical attitudes. Personality traits have been posited as antecedents; however, most work addressing such links has been limited to cross-sectional study designs. The current study used data from two large (both Ns > 8,700), longitudinal cohorts of individuals from the United Kingdom who were parent-assessed on a measure of ...

Children with high levels of aggressive-hyperactive-impulsive-inattentive behavior (AHII; n = 154) were subdivided into those with (n = 38) and without (n = 116) adaptive disability (+AD/-AD) defined as a discrepancy between expected versus actual adaptive functioning. They were compared to each other and a control group of 47 normal children. Both AHII groups were more likely to have attention...