Presurgical MMPI-2 Cluster Profiles Predict 1-Year Low-Back Surgery Outcomes

The primary purpose of this study was to examine whether empirically derived cluster profiles based on scores from the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) predicted outcomes of surgery at 1 year for patients with low-back pain. On the basis of hierarchical cluster analysis of presurgery MMPI-2 scores for 60 patients, three interpretable and significant subgroups were formed. These consisted of a pathological/neurotic type, a double V-code type, and a normal type. The patents in the normal type were significantly more likely to report beneficial outcomes of surgery in terms of disability and pain than those in the other 2 types. These findings extend previous research and suggest (1) low-back surgery candidates are heterogeneous in their psychological profiles, and (2) MMPI-2 profiles are predictive of low-back surgery outcome. Future research should focus on identifying physiological substrates for these distinct profiles and investigating the effectiveness of presurgical psychological interventions based on profile type.     

Writing for publication group: professional development situated in the interstices of academia and performativity

This article features nine ‘narratives of experience’ illustrative of academics engaged in an alternative Professional Development (PD) activity, referred to as Writing for Publication, in a regional Australian university. Each narrative adopts a critical stance to academic practice situated in what Ball defines as a ‘culture of performativity’ perpetuated by a ‘global neoliberal environment’. Contrary to professional development built primarily around sporadic content-provision and credential-based activities, Writing for Publication represents an alternative approach to professional development, a loose-coupling model, that gives validation to academics engaged in navigating dominant neoliberal discourses driving higher education filtered through the interstices or sites for identity-creation, agency formation and emerging communities of practice.     

中学生生活满意度的跨文化比较研究

目的:比较不同国家(地区)中学生生活满意度的差异。方法:运用《多维学生生活满意度量表》对爱尔兰、美国、高加索、以色列、中国五个国家(地区)共计1345名中学生的生活满意度进行了测量。结果:(1)五国(地区)中学生高一般生活满意度组人数分布百分比由多到少依次为爱尔兰、美国、高加索、以色列、中国;(2)五国(地区)女生的家庭满意度高于男生,男生的学校满意度高于女生;(3)爱尔兰学生的家庭满意度最高,中国学生的朋友和学校满意度最高,以色列学生的生活环境满意度最低、自我满意度最高;(4)性别和国家(地区)对中学生的学校、生活环境、自我的满意度存在交互作用。结论:不同国家(地区)中学生的生活满意度存在差异,社会文化背景是影响中学生生活满意度的重要因素。     

Target-directed visual attention is a prerequisite for action-specific perception

Witt et al. (2008) have recently shown that golfers who putt with more success perceive the hole to be bigger than golfers who putt with less success. In three experiments, we systematically examined whether this phenomenon, labelled action-specific perception, depends on directing visual attention towards the action target. In Experiment 1 we replicated previously reported action-specific effects on perception in golf putting. In 3 and 4 we directly assessed whether action-specific effects on perception in golf putting are dependent on focusing visual attention on the target. To this end, the participants performed the putting task while visual attention towards the target was either completely withheld (Experiment 2) or divided over the target and other task-relevant objects (Experiment 3). No action-specific effects were found when visual attention towards the action target was occluded or partially diverted from the target. Together, our results provide evidence to suggest that focusing visual attention on the target while performing the action is a prerequisite for the emergence of action-specific perception.     

The human Müller-Lyer illusion in goalkeeping

We examined whether a goalkeeper can influence a penalty-taker's actions by assuming postures that mimic Müller-Lyer configurations. The results of two studies indicate that (i) goalkeeper posture affects the perception of the goalkeeper's height in a manner consistent with the Müller-Lyer illusion; (ii) this influences penalty-taking accuracy; and (iii) a posture which resembles a wing-out Müller-Lyer configuration results in wider and lower throws.     

Putting Values into Practice: Public Policy and the Future of Mental Health Consumer-run Organizations

The purpose of the paper is to reflect on value dilemmas in mental health consumer-run organizations and to discuss implications for research, policy, and practice. We review the roots of consumer-run organizations in the self-help movement and the psychiatric survivor liberation movement, focusing on the distinctive values espoused by consumer-run organizations. We also discuss evidence-based and value-based approaches to mental health policy formulation and mental health reform, noting the particular importance of value-based approaches and the role that consumer-run organizations can play in mental health reform. Based on our experiences conducting a participatory action research study of four mental health consumer-run organizations, we identify and examine several value dilemmas, discuss the lessons that we learned about these value dilemmas, and note their implications for future directions in research, policy, and practice.     

Stable implicit motor processes despite aerobic locomotor fatigue

Implicit processes almost certainly preceded explicit processes in our evolutionary history, so they are likely to be more resistant to disruption according to the principles of evolutionary biology [Reber, A. S. (1992). The cognitive unconscious: An evolutionary perspective. Consciousness and Cognition, 1, 93-133.]. Previous work (e.g., [Masters, R. S. W. (1992). Knowledge, (k)nerves and know-how: The role of explicit versus implicit knowledge in the breakdown of a complex motor skill under pressure. British Journal of Psychology, 83, 343-358.]) has shown that implicitly learned motor skills remain stable under psychological pressure and concurrent cognitive demands, and recently [Poolton, J. M., Masters, R. S. W., & Maxwell, J. P. (2007). Passing thoughts on the evolutionary stability of implicit motor behaviour: Performance retention under physiological fatigue. Consciousness and Cognition, 16(2), 456-468.] showed that they also remain stable under conditions of anaerobic fatigue that would have significantly challenged the survival skills of our ancestors. Here we examine the stability of an implicitly learned motor skill under fatigue conditions that primarily tax a different physiological system (the aerobic system), but which have equally strong evolutionary connotations. Participants acquired a throwing task by means of an errorless (implicit) learning method or an errorful (explicit) method. Motor performance in the errorless condition, but not the errorful condition, remained stable following an exhaustive VO2 max. running test. Our findings replicate and extend the work of Poolton et al., providing further support for Reber's evolutionary distinction between implicit and explicit processes.