A Systematic Review of Mass Media Campaigns for Suicide Prevention: Understanding Their Efficacy and the Mechanisms Needed for Successful Behavioral and Literacy Change

Mass media campaigns are increasingly seen as an important part of suicide prevention; however, despite their popularity, their efficacy is not well understood. The current review aimed to address key knowledge gaps regarding how mass media campaigns can be optimized to prevent suicide, by looking at their global efficacy, and mechanisms related to successful outcomes. A systematic review of the international literature examined studies which evaluated mass media campaigns targeted at suicide prevention, where suicide behaviors (mortality, attempts) or suicide literacy (knowledge, attitudes, help‐seeking) was identified as a primary outcome. Thirteen articles describing 12 unique campaigns met eligibility criteria. For behavioral outcomes, mass media campaigns appear to be most effective when delivered as part of a multicomponent suicide prevention strategy, while “standalone campaigns” were modestly useful for increasing suicide literacy. Level of exposure, repeat exposure, and community engagement appeared to be fundamental to the success of these campaigns; however, these constructs were poorly adhered to in the development and implementation of campaigns. Overall, the mixed quality of the included studies highlights a need for increased quantity, consistency, and quality of evaluations to advance the evidence base.     

Weber fractions for weight and mass as a function of stimulus intensity

Laboratory simulations of weightlessness have shown that the Weber fraction for mass is higher than that for weight in the range 1000-7000 g. Experiments in the weightless conditions of orbital and parabolic flight have found the same at the 50 g level. To obtain measures at intermediate intensities, the Weber fractions for weight and mass were measured for 15 subjects at 50, 200 and 400 g. The stimuli were canisters suspended on strings. The subjects lifted them for the weight condition and swung them firmly sideways for the mass condition. The Weber fraction was higher for mass than for weight at all intensities, and increased at 50 g for both conditions. In a second mass condition, in which the subjects shook the cylinders within a loosely clenched hand, the Weber fraction remained almost constant at all intensities and was significantly smaller than for the firm swing method at 50 g. The differences in performance between conditions may be related to the continuity or intermittency of pressure information. Other explanations are discussed.     

Improving intergroup relations between Catholics and Protestants in Northern Ireland via E-contact

Northern Ireland is characterised by extensive segregation between its predominantly Catholic and Protestant communities. With the aim of overcoming this segregation, the current study experimentally evaluated the effectiveness of electronic or E-contact as a novel indirect contact and prejudice-reduction strategy. Here, Catholic and Protestant participants were not required to meet physically but were involved in a collaborative and goal-orientated online interaction with a member of the other community. As predicted, E-contact improved both Catholics’ and Protestants’ outgroup attitudes via improved contact expectancies and reduced intergroup anxiety. These findings provide support for the contemporary role of online interactions in actively overcoming the physical and psychological barriers that often prevent prejudice reduction in segregated communities.     

Harm inflation: Making sense of concept creep

ABSTRACT

“Concept creep” is the gradual semantic expansion of harm-related concepts such as bullying, mental disorder, prejudice, and trauma. This review presents a synopsis of relevant theoretical advances and empirical research findings on the phenomenon. It addresses three fundamental questions. First, it clarifies the characterisation of concept creep by refining its theoretical and historical dimensions and presenting studies investigating the change in harm-related concepts using computational linguistics. Second, it examines factors that have caused concept creep, including cultural shifts in sensitivity to harm, societal changes in the prevalence of harm, and intentional meaning changes engineered for political ends. Third, the paper develops an account of the consequences of concept creep, including social conflict, political polarisation, speech restrictions, victim identities, and progressive social change. This extended analysis of concept creep helps to understand its mixed implications and sets a multi-pronged agenda for future research on the topic.     

The measurement of differential thresholds for lifted weights by microcomputer-controlled apparatus

The measurement of differential thresholds (DLs) for lifted weights normally involves lengthy test sessions. This is due partly to the statistical techniques for measuring the threshold and partly to the methods adopted to present the stimuli. Attempts to speed up test procedures tend to produce unreliable DL estimates, or to measure the sense of force or effort rather than weight perception. To facilitate the measurement of DLs for lifted weights, an Apple microcomputer was programmed to generate Wetherill tracking procedures and was interfaced with two stimulus bearing turntables. Various lifting methods are easily implemented, and DLs are reliably and quickly measured. The adaptation of the apparatus for general use in investigating the haptic sense modality is discussed.     

Suicide Prevention in Australian Aboriginal Communities: A Review of Past and Present Programs

A review of Aboriginal suicide prevention programs were conducted to highlight promising projects and strategies. A content analysis of gray literature was conducted to identify interventions reported to have an impact in reducing suicidal rates and behaviors. Most programs targeted the whole community and were delivered through workshops, cultural activities, or creative outlets. Curriculums included suicide risk and protective factors, warning signs, and mental health. Many programs were poorly documented and evaluations did not include suicidal outcomes. Most evaluations considered process variables. Results from available outcome evaluations suggest that employing a whole of community approach and focusing on connectedness, belongingness and cultural heritage may be of benefit. Despite the challenges, there is a clear need to evaluate outcomes if prevention is to be progressed.