Australian Catholic University

About: Australian Catholic University is a education organization based out in Brisbane, Queensland, Australia. It is known for research contribution in the topics: Population & Poison control. The organization has 2721 authors who have published 10013 publications receiving 215248 citations. The organization is also known as: ACU & ACU National.

Dynamics of the Human Structural Connectome Underlying Working Memory Training.

Abstract: Brain region-specific changes have been demonstrated with a variety of cognitive training interventions. The effect of cognitive training on brain subnetworks in humans, however, remains largely unknown, with studies limited to functional networks. Here, we used a well-established working memory training program and state-of-the art neuroimaging methods in 40 healthy adults (21 females, mean age 26.5 years). Near and far-transfer training effects were assessed using computerized working memory and executive function tasks. Adaptive working memory training led to improvement on (non)trained working memory tasks and generalization to tasks of reasoning and inhibition. Graph theoretical analysis of the structural (white matter) network connectivity (“connectome”) revealed increased global integration within a frontoparietal attention network following adaptive working memory training compared with the nonadaptive group. Furthermore, the impact on the outcome of graph theoretical analyses of different white matter metrics to infer “connection strength” was evaluated. Increased efficiency of the frontoparietal network was best captured when using connection strengths derived from MR metrics that are thought to be more sensitive to differences in myelination (putatively indexed by the [quantitative] longitudinal relaxation rate, R1) than previously used diffusion MRI metrics (fractional anisotropy or fiber-tracking recovered streamlines). Our findings emphasize the critical role of specific microstructural markers in providing important hints toward the mechanisms underpinning training-induced plasticity that may drive working memory improvement in clinical populations.

The Role of Theory in Mathematics Education and Research

Abstract: Theory is seen as playing both a foreground role, in the sense that the enterprise of research in mathematics education is to develop theory, and a background role, since all observation is theory laden. After considering different theoretical stances towards observation, data, and analysis, three broad approaches to research in mathematics education are identified and the role played by theory in each of these is discussed. The chapter concludes with some speculations concerning possible directions for development, moving from language as core domain of problematicity, to images, icons, and the impact of electronic media on interpretation in the future.

A Systematic Review of Mindfulness-Based School Interventions with Early Adolescents

Abstract: Recent research on mindfulness-based interventions (MBIs) in schools have reported effect differences across age groups of students, with early adolescent students reporting the least effect. Existing reviews, however, include students across all age ranges and largely concern intervention effects and their contributors. The exclusion of qualitative data exploring students’ experiences of learning and practising mindfulness omits valuable information that could be used to better inform implementation of MBIs. The lack of quality critique employed in the existing reviews necessitates a new review. A search carried out in nine electronic databases resulted in an initial selection of 1571 records, from which 13 papers emerged that met all inclusion criteria. The review found positive improvements reported in well-being measures in 11 of the 13 papers examined across both quantitative and qualitative data that provide support for mindfulness as a well-being school preventative program with this age group. A quality analysis critique of each paper demonstrated methodological strengths and limitations of existing MBI studies for early adolescent students, which inform ongoing conversations about whether and how MBIs meet the criteria of evidence-based practice (EBP) as an effective educational program. Findings are discussed for future research and education considerations are reviewed for educational professionals who aim to support early adolescents through the implementation of MBIs at school.

The Effect of Exercise on Cancer-Related Cognitive Impairment and Applications for Physical Therapy: Systematic Review of Randomized Controlled Trials

Abstract: Background Cancer-related cognitive impairment (CRCI), often called “chemo-brain” or “chemo-fog,” is a common side effect among adults with cancer, which can persist well after treatment completion. Accumulating evidence demonstrates exercise can improve cognitive function in healthy older adults and adults with cognitive impairments, suggesting exercise may play a role in managing CRCI. Purpose The purpose was to perform a systematic review of randomized controlled trials (RCTs) to understand the effect of exercise on CRCI. Data Sources Relevant literature was retrieved from CINAHL, Medline (Ovid), and EMBASE. Study Selection Eligible articles were RCTs that prescribed aerobic, resistance, combined aerobic/resistance, or mind-body (eg, yoga or Qigong) exercise during or following cancer treatment and included cognitive function outcome measures. Data Extraction Descriptive information and Cohen d effect sizes were directly extracted or calculated for included trials. Data Synthesis Twenty-nine trials were included in the final analysis. A statistically significant effect of exercise on self-reported cognitive function, both during and postadjuvant treatment, was reported in 12 trials (41%) (Cohen d range: 0.24–1.14), most commonly using the EORTC QLQ-C30. Ten trials (34%) performed neuropsychological testing to evaluate cognitive function; however, only 3 trials in women with breast cancer reported a significant effect of exercise (Cohen d range: 0.41–1.47). Limitations Few RCTs to date have evaluated the effect of exercise on CRCI as a primary outcome. Twenty-six trials (90%) in this review evaluated CRCI as secondary analyses. Conclusions Evidence supporting exercise as a strategy to address CRCI is limited. Future research evaluating CRCI as a primary outcome, including self-reported and objective measures, is needed to confirm the possible role of exercise in preventing and managing cognitive impairments in adults with cancer.

Hope, Friends, and Subjective Well-Being: A Social Network Approach to Peer Group Contextual Effects

Abstract: Research on adolescence has previously shown that factors like depression and burnout are influenced by friendship groups. Little research, however, has considered whether similar effects are present for variables such as hope and subjective well-being. Furthermore, there is no research that considers whether the degree of hope of an adolescent’s friends is associated with well-being over the individual’s level of hope. Data were collected in 2012 from a sample of 15-year-olds (N = 1,972; 62% Caucasian; 46% identified as Catholic; 25% had professional parents) from the East Coast of Australia. Findings suggest that individuals from the same friendship group were somewhat similar in hope and well-being. Multilevel structural equation modeling indicated that friendship group hope was significantly related to psychological and social well-being.