Gratitude : a basis for positive psychology interventions with a clinical population

This thesis includes a literature review that summarises the types of psychological research that have been conducted into gratitude, including the research conceptualising and developing assessments around it and exploring its associations with wellbeing, personality, social interaction, and health. The review focuses specifically on the research examining the relationship of gratitude to anxiety, depression and sleep, providing an outline of current theories about the relationship of positive affect to wellbeing, and a summary of the evidence to date. It is noted that there is comparatively little research on the impact of gratitude on anxiety and sleep but promising findings about the role of gratitude in the treatment of depression. Taken together, it is argued, the current research supported the need for trials of gratitude interventions specifically with clinical populations. Finally, the review looks at the literature of experimental interventions using gratitude. Particular emphasis is given to what has been learnt through these trials that might guide the focus and design of future research.

There follows the report of a randomized wait-list controlled pre-post trial of a gratitude diary intended to extend the research into the efficacy of gratitude diaries in the treatment of clinical populations with depression, anxiety and sleep difficulties. It was hypothesised that after completing a brief gratitude diary for three weeks, participants would have lower scores on measures of depression, anxiety, and perceived sleep difficulties, and higher scores on a measure of life satisfaction. These results were also expected to be evident at three-week follow-up. In a randomised waitlist-controlled trial with repeated measures pre-, post- and follow-up design, participants (N=109, from Australia) aged 18-64 years with a current self-reported diagnosis of an anxiety disorder and/or depression, took part in a self-help study via the internet. After completing the diary participants had lower scores on measures of depression, anxiety and perceived sleep difficulties and higher scores on a measure of subjective wellbeing than immediately pre-intervention. In addition, they had improved scores on a measure of stress. At three-week follow-up scores on depression and perceived sleep difficulties were no longer significantly different from pre-intervention, however improvements for subjective wellbeing and stress at post-intervention were maintained. At follow-up scores for anxiety had not only been maintained but had improved significantly beyond post-intervention results. This trial provides support for the use of gratitude diaries as a short-term intervention with a clinical population. Different patterns of anxiety and depression scores raise the possibility that gratitude interventions work differently to address depression and anxiety symptoms and provide support for the idea that gratitude interventions may have sustainable effects on anxiety symptoms.

Building environmentally sustainable food systems on informed citizen choices: evidence from Australia

To address imminent concerns of global food security and agricultural sustainability, international research activities are increasingly focusing on ways of improving the food system’s efficiency and effectiveness at providing nutritious food for all in an environmentally sustainable manner. A significant component of this will involve understanding and ultimately influencing people’s dietary choices. However, for people-oriented intervention strategies to be effective, the gaps between existing behaviour and what is required for environmentally sustainable and healthy food choices must be specified. This paper identifies priority areas for behavioural change in relation to the types of food purchased, how they have been produced and the individual’s food provisioning behaviour. In order to determine the most effective ways to influence people’s consumption behaviour in light of these priority areas, the authors conducted a pilot study on a group of 163 Australians who would be expected to be ‘early adopters’ of a sustainable diet. Results show that only around 1 in 10 are presently actively engaged in reducing the environmental impact of their diets in these priority areas. Hence, there is a significant need to engage many more people in sustainable dietary behaviours. Furthermore, it was found that areas where interventions are most likely to have the largest impact, based on high cost to the environment and likelihood of citizens changing their behaviour, are reducing the amount of food waste generated in the household and lowering the amount of junk food eaten.

Predicting psychological and subjective well-being from personality: incremental prediction from 30 facets over the Big 5

This study investigated the relationship between the Big 5, measured at factor and facet levels, and dimensions of both psychological and subjective well-being. Three hundred and thirty-seven participants completed the 30 Facet International Personality Item Pool Scale, Satisfaction with Life Scale, Positive and Negative Affectivity Schedule, and Ryff’s Scales of Psychological Well-Being. Cross-correlation decomposition presented a parsimonious picture of how well-being is related to personality factors. Incremental facet prediction was examined using double-adjusted r2 confidence intervals and semi-partial correlations. Incremental prediction by facets over factors ranged from almost nothing to a third more variance explained, suggesting a more modest incremental prediction than presented in the literature previously. Examination of semi-partial correlations controlling for factors revealed a small number of important facet-well-being correlations. All data and R analysis scripts are made available in an online repository.

Indicators for evaluating cancer organizations' support services: performance and associations with empowerment

Community-based cancer organizations provide services to support patients. An anticipated benefit of these services is patient empowerment. However, this outcome has not been evaluated because of the lack of validated health-related empowerment questionnaires in the cancer context. In this validation study, the authors assessed the extent to which 16 indicators used by the Canadian Cancer Society (CCS) and the Cancer Council Victoria, Australia (CCV) to evaluate their services were associated with health-related empowerment.

Associations between socioeconomic status and primary total knee joint replacements performed for osteoarthritis across Australia 2003-10: data from the Australian Orthopaedic Association National Joint Replacement Registry

Relatively little is known about the social distribution of total knee joint replacement (TKR) uptake in Australia. We examine associations between socioeconomic status (SES) and TKR performed for diagnosed osteoarthritis 2003-10 for all Australian males and females aged ≥30 yr.

Offending: drug-related expertise and decision making

Drug use is endemic within offender populations and, as a result, considerable heterogeneity can be found in drug-related crime. Expertise in drug-related offending covers an equally broad base from internal mental processes through skill acquisition to social interactions. This review considers decision making and expertise for crimes in the domains of direct causal effects (e.g., burglary) and non-causal relationships (e.g., apprehension avoidance, detection). Also considered is the notion of expertise as it applies to addiction, in particular the conscious and unconscious goal-directed behaviors articulated in the Selfish Goal model (Huang & Bargh, 2014) and a cool cognition/hot affect dual processing model of criminal decision making (Van Gelder, 2013). The review findings would suggest (a) the need for more focused research into whether expertise differs as a function of drug use and (b) a paradigm shift in terms of treatment for drug-using offenders.

Glutaredoxin1 protects neuronal cells from copper-induced toxicity

Glutaredoxin1 (GRX1) is a glutathione (GSH)-dependent thiol oxidoreductase. The GRX1/GSH system is important for the protection of proteins from oxidative damage and in the regulation of protein function. Previously we demonstrated that GRX1/GSH regulates the activity of the essential copper-transporting P1B-Type ATPases (ATP7A, ATP7B) in a copper-responsive manner. It has also been established that GRX1 binds copper with high affinity and regulates the redox chemistry of the metallochaperone ATOX1, which delivers copper to the copper-ATPases. In this study, to further define the role of GRX1 in copper homeostasis, we examined the effects of manipulating GRX1 expression on copper homeostasis and cell survival in mouse embryonic fibroblasts and in human neuroblastoma cells (SH-SY5Y). GRX1 knockout led to cellular copper retention (especially when cultured with elevated copper) and reduced copper tolerance, while in GRX1-overexpressing cells challenged with elevated copper, there was a reduction in both intracellular copper levels and copper-induced reactive oxygen species, coupled with enhanced cell proliferation. These effects are consistent with a role for GRX1 in regulating ATP7A-mediated copper export, and further support a new function for GRX1 in neuronal copper homeostasis and in protection from copper-mediated oxidative injury.

Type D personality and the Five-Factor Model : a facet-level analysis

Objective: This study assessed the degree to which NEO-PI-R facets contribute to understanding of Type D personality over and above the Big 5. Method: Healthy participants (n = 268) completed the DS14 and the NEO-PI-R. In addition to analyzing the Type D subscales of social inhibition and negative affectivity, we computed a continuous measure of Type D scored as the sum of the two subscales. Results: Facets provided moderate incremental prediction of Type D subscales. The facets of assertiveness, self- consciousness, and positive emotion provided incremental prediction of negative affectivity, and warmth, activity, and gregariousness provided incremental prediction of social inhibition. Facets provided minimal incremental prediction of continuous Type D. The Big 5 explained substantially more variance in continuous Type D (71%) than negative affectivity (59%) or social inhibition (61%). Conclusions: Overall, the facet-level analysis provided additional insights into the nature of Type D. The incremental prediction of the Type D subscales by facets supported the idea that Type D scales are narrower constructs than the Big 5. However, the strong prediction of continuous Type D by the Big 5 and the lack of incremental prediction by facets points to the overall Type D construct being well represented by the Big 5.