The neural correlates of alcohol-related aggression

Alcohol intoxication is implicated in approximately half of all violent crimes. Over the past several decades, numerous theories have been proposed to account for the influence of alcohol on aggression. Nearly all of these theories imply that altered functioning in the prefrontal cortex is a proximal cause. In the present functional magnetic resonance imaging (fMRI) experiment, 50 healthy young men consumed either a low dose of alcohol or a placebo and completed an aggression paradigm against provocative and nonprovocative opponents. Provocation did not affect neural responses. However, relative to sober participants, during acts of aggression, intoxicated participants showed decreased activity in the prefrontal cortex, caudate, and ventral striatum, but heightened activation in the hippocampus. Among intoxicated participants, but not among sober participants, aggressive behavior was positively correlated with activation in the medial and dorsolateral prefrontal cortex. These results support theories that posit a role for prefrontal cortical dysfunction as an important factor in intoxicated aggression.     

Pride and punishment: Entitled people's self‐promoting values motivate hierarchy‐restoring retribution

What is the purpose of punishment? The current research shows that for entitled people—those with inflated self‐worth—justice is about maintaining societal hierarchies. Entitled people more strongly hold self‐enhancing values (power and achievement; Studies 1 and 3). They are also more likely, when thinking about justice for offenders, to adopt a hierarchy‐based justice orientation: Perceptions that crime threatens hierarchies, motives to restore those hierarchies, and support for retribution (Studies 2 and 3). Further, the relationship of entitlement to justice orientation is mediated by self‐enhancing values when entitlement is measured (Study 3) and manipulated (Studies 4, 5 and 6). Together these studies suggest that entitlement—and the resultant preoccupation with one's status—facilitates a view of justice as a hierarchy‐based transaction: one where criminal offenders and their victims exchange power and status. These findings reveal the self‐enhancing and hierarchy‐focused nature of entitlement, as well as the roots of retribution in concerns about status, power, and hierarchies.     

Disengagement Training for the Treatment of Pathological Worry: A Preliminary Test

Pathological worry is characterized by an inability to distract or disengage from worry, and this uncontrollability is the defining feature of generalized anxiety disorder (GAD). The present study assessed a novel computerized strategy that targets these attention difficulties. Worry Disengagement Training (WDT), which involves alternating between writing about one’s worry and positive topics, was evaluated in a sample with elevated worry (N = 50), most of whom met for GAD diagnosis (66%). Compared to waitlist, WDT led to increased ability to disengage from in vivo worry on a breath focus task, resulting in fewer negative intrusions (β = -.29, p = .02; sr² = .08). Relative to waitlist, WDT also led to lower self-reported general worry (β = -.36, p = .001, sr² = .14) and depressive symptoms (β = -.25, p = .02, sr² = .07). These effects remained in the subset of participants meeting criteria for GAD. WDT did not impact anxious arousal, suggesting some specificity of effects. These findings provide preliminary support for WDT as an effective strategy to increase disengagement ability and reduce worry and depression. Limitations and future directions are discussed.     

2D or not 2D? An fMRI study of how dogs visually process objects

Animal Cognition - Given humans’ habitual use of screens, they rarely consider potential differences when viewing two-dimensional (2D) stimuli and real-world versions of dimensional stimuli....     

3-D bone models to improve treatment initiation among patients with osteoporosis: A randomised controlled pilot trial

Objective: To investigate the efficacy of 3-D printed bone models as a tool to facilitate initiation of bisphosphonate treatment among individuals who were newly diagnosed with osteoporosis.

Design: Fifty eight participants with estimated fracture risk above that at which guidelines recommend pharmacological intervention were randomised to receive either a standard physician interview or an interview augmented by the presentation of 3-D bone models.

Main outcome measures: Participants’ beliefs about osteoporosis and bisphosphonate treatment, initiation of bisphosphonate therapy assessed at two months using self-report and pharmacy dispensing data.

Results: Individuals in the 3-D bone model intervention condition were more emotionally affected by osteoporosis immediately after the interview (p = .04) and reported a greater understanding of osteoporosis at follow-up (p = .04), than the control group. While a greater proportion of the intervention group initiated an oral bisphosphonate regimen (alendronate) (52%) in comparison with the control group (21%), the overall initiation of medication for osteoporosis, including infusion (zoledronate), did not differ significantly (intervention group 62%, control group 45%, p = .19).

Conclusion: The presentation of 3-D bone models during a medical consultation can modify cognitive and emotional representations relevant to treatment initiation among people with osteoporosis and might facilitate commencement of bisphosphonate treatment.     

The Effects of Introducing Peer Support to Young People with a Chronic Illness

Peer support groups have been an increasingly popular way of limiting the adverse effects of life with a chronic illness for adolescents although few groups have been rigorously evaluated. This paper reports the findings of a realistic evaluation of a hospital based peer support program Chronic Illness Peer Support (ChIPS), in Sydney, Australia. We collected qualitative interview and focus group data from four participant groups; new ChIPS members, their parents, older members who had been in ChIPS for two or more years, and ChIPS co-ordinators past and present. Results of qualitative data have been aggregated and organised into three categories; program attendance: getting in and staying in; program outcomes for young people: personal growth and development; and social connection. Questionnaires were also administered to fourteen new ChIPS members but no significant changes in distress or self-esteem were recorded between the beginning and the end of the short study period. The ChIPS Introductory Program fulfilled its aim, entering young people with chronic illness into the peer support program. There was evidence of initial personal growth and development in those young people, with potential for enhanced social connection from ongoing participation in ChIPS activities.     

Are Peripheral Regions Benefiting from National Policies Aimed at Attracting Skilled Migrants? Case Study of the Northern Territory of Australia

Complex and interrelated trends in population and labour market dynamics in peripheral regions of developed countries have compelled them to use international skilled migration to address their skill shortages and facilitate economic development. Using the Northern Territory (NT) of Australia as a case study, this paper examines if and how these regions can benefit from a national policy for skilled migration, including the regional migration policy, which Australia has been operating since 1996–1997. The paper situates the regional migration policy in a context of the global competition for skills, explains how it came about and outlines the key characteristics of the NT as a peripheral region. An innovative approach to immigration data analysis permits formulating four propositions about the nature of international migration to peripheral regions. The analysis consists of tracking over a period of 17 years, the dynamics between all components of Australia’s and the Northern Territory’s permanent additions and comparing changes in the composition of their respective skilled migration streams. The paper proposes that peripheral regions benefit from skilled migration with a lagged effect as compared to Australia as a whole. It suggests that in order to better address skill shortages, they should also develop the capacity of the locally resident immigrant groups.     

Altered White-Matter Microstructure in Conduct Disorder Is Specifically Associated with Elevated Callous-Unemotional Traits

Adolescents with conduct disorder (CD) and elevated callous-unemotional (CU) traits have been reported to present with a more severe and persistent pattern of antisocial behaviour than those with low levels of CU traits. However, relatively few studies have investigated whether there are differences in brain structure between these subgroups.We acquired diffusion tensor imaging data and used tract-based spatial statistics (TBSS) to compare adolescents with CD and high levels of CU traits (CD/CU+; n?=?18, CD and low levels of CU traits (CD/CU-; n?=?17) and healthy controls (HC; n?=?32) on measures of fractional anisotropy (FA), axial (AD), radial (RD) and mean (MD) diffusivity. Compared to CD/CU- adolescents, those with CD/CU+ presented increased FA and reduced RD and MD (lower diffusivity) in several tracts including: body and splenium of the corpus callosum, right inferior longitudinal fasciculus, ILF; right inferior fronto-occipital fasciculus, IFOF; left superior longitudinal fasciculus, SLF; left cerebral peduncle, bilateral internal capsule, left superior and posterior corona radiata, bilateral thalamic radiation and left external capsule. In addition, relative to CD/CU- individuals, adolescents with CD/CU+ showed lower diffusivity (indexed by reduced RD and MD) in left uncinate fasciculus and bilateral fornix. Finally, relative to healthy controls, CD/CU+ individuals showed lower diffusivity (reduced RD) in the genu and body of the corpus callosum and left anterior corona radiata. These results suggest that CD/CU+ individuals present with white-matter microstructural abnormalities compared to both CD/CU- individuals and age-matched healthy controls. This finding is consistent with emerging evidence suggesting that CD/CU+ represents a distinct subtype of CD, and illustrates the importance of accounting for heterogeneity within CD populations.     

An assessment of social validity trends in applied behavior analysis

Research articles published during the first 31 years of Journal of Applied Behavior Analysis were assessed for reports of social validity measures. Two measures of social validity (treatment outcome and treatment acceptability) were assessed for each article. In addition, articles were assessed for the incorporation of analog versus naturalistic settings. Overall, treatment outcome and acceptability measures were reported in less than 13% of articles. In addition, studies conducted in naturalistic settings were more likely to report social validity measures than studies conducted in analog settings. Possible reasons for the deficit in the reporting of social validity measures and potential outcomes of this deficit are discussed. Copyright © 1999 John Wiley & Sons, Ltd.