The Role of Self-Efficacy and Fear-Avoidance Beliefs in the Prediction of Disability

Both self-efficacy and fear-avoidance beliefs have been shown to be predictors of the level of disability in low back pain suffers. What is not clear from the literature, however, is whether the two constructs are differentially predictive of disability. The aim of this study was to investigate the relationship between pain self-efficacy and fear-avoidance beliefs and to determine whether they can explain unique variance in disability scores. One hundred and twenty-one people over the age of 18, suffering from chronic low back pain and receiving workers' compensation, completed the Pain Self-Efficacy Scale (PSEQ), the Fear Avoidance Beliefs questionnaire (FABQ), the Quebec Back Pain Disability Scale and a visual analogue scale for pain. The results show that, after controlling for pain, self-efficacy explained 24% of the variance in disability scores, and fear avoidance only a further 3.1%.     

Delaying execution of intentions: overcoming the costs of interruptions

In real-world settings, execution of retrieved intentions must often be briefly delayed until an ongoing activity is completed (delayed-execute prospective memory tasks). Further, in demanding work settings, the ongoing activity itself can be interrupted. Experiment 1 examined the effects of the delay length (5, 15, 40 s), the presence of an interruption within that delay, and the length of the interruption on prospective memory performance. Delay length did not significantly affect performance, but interruptions produced significant decrements in performance relative to a delay alone. The length of the interruptions (10 vs. 20 s) did not significantly affect performance. Experiment 2 replicated the negative effects of interruptions, and found that these effects could be overcome with a simple external mnemonic. We suggest that in demanding work environments where interruptions are likely, external cues are advisable, especially where prospective memory failures have critical consequences. Copyright © 2004 John Wiley & Sons, Ltd.     

Individual Differences in Reward-Based Learning Predict Fluid Reasoning Abilities

The ability to reason and problem-solve in novel situations, as measured by the Raven's Advanced Progressive Matrices (RAPM), is highly predictive of both cognitive task performance and real-world outcomes. Here we provide evidence that RAPM performance depends on the ability to reallocate attention in response to self-generated feedback about progress. We propose that such an ability is underpinned by the basal ganglia nuclei, which are critically tied to both reward processing and cognitive control. This hypothesis was implemented in a neurocomputational model of the RAPM task, which was used to derive novel predictions at the behavioral and neural levels. These predictions were then verified in one neuroimaging and two behavioral experiments. Furthermore, an effective connectivity analysis of the neuroimaging data confirmed a role for the basal ganglia in modulating attention. Taken together, these results suggest that individual differences in a neural circuit related to reward processing underpin human fluid reasoning abilities.     

In Defense of Walter Benjamin’s Constellational Curriculum: A Response to the Critics

Studies in Philosophy and Education -