Illness perceptions are the main predictors of depression and anxiety symptoms in patients with chronic pain

Depression and anxiety symptoms in chronic pain are associated with adverse clinical outcomes, and appear highly related to patient’s illness perceptions as well as with marital adjustment. This study aimed to investigate the predictive value of pain variables, marital adjustment and illness perceptions on depression and anxiety in patients with chronic pain. Two hundred patients were recruited from a pain unit in a public hospital in the north of Portugal. Patients completed a questionnaire that assessed illness perceptions (IPQ-Brief), marital adjustment (revised dyadic adjustment scale), depression and anxiety symptoms (hospital anxiety depression scale) and pain variables (pain intensity and pain disability index). Depression and anxiety symptoms were associated with pain intensity, pain-related disability, marital adjustment and illness perceptions. Results from hierarchical regression showed that illness perceptions contributed significantly to depression and anxiety symptoms over and above the effects of pain intensity, pain-related disability and marital adjustment, after controlling for gender. In multivariate analyses, pain intensity, pain-related disability and marital adjustment were uniquely related to depression and anxiety symptoms, whereas specific illness perceptions were uniquely related to depression symptoms (identity, treatment control, emotional response and coherence) and to anxiety symptoms (identity, emotional response and concern). Perceptions of greater symptomatology (identity) and of emotional impact, and lesser perceptions of treatment control and understanding of chronic pain (illness comprehensibility) were significantly associated with increased depression symptoms. Perceptions of greater symptomatology (identity), emotional impact and greater concern were associated with anxiety symptoms. These findings indicate that the contribution of illness perceptions was greater than that made by traditional covariates, and may therefore be a useful basis for future psychological interventions.     

Combining the representational and the relational view

Philosophical Studies - This paper tries to meet the three basic constraints in the metaphysics of perception—that, following Schellenberg (Philos Stud 149:19–48, 2010), I call here the...     

Lack of Detachment and Impaired Sleep Connect Perceived Unfairness with Health Complaints: a Population-Based Mediation Test

In a sample of 8223 working individuals, representative for Swiss employees, a lack of detachment from daily problems and sleep problems were tested to mediate the association between experienced unfairness in life and health problems. Mediation was compared with respect to the life domain of unfairness (work life or private life), sex and age (ages 18 to 45 and older than 45). Unfairness at work and private unfairness were tested separately with mutual control of other domains of unfairness. In an analysis of overall unfairness in life, unfairness in both domains was summed up. Both life domains of unfairness were related directly and indirectly with health problems. All indirect paths were significant. The sum of unfairness at work and unfairness in private life showed the strongest direct and indirect association with health problems. Sleep problems turned out to be a stronger mediator than lack of detachment. Differences in mediation between men and women were not significant. Sleep problems were a significantly stronger mediator in older, compared with younger, individuals. Sleep problems seem to connect experienced unfairness at different life domains with health impairments. The study adds knowledge to the health-related interplay of work, leisure, and sleep.     

Generalization of equivalence relations from photos to objects by preschool children

Generalized equivalence classes are stimulus classes that consist of equivalent stimuli and other physically similar class‐member stimuli. The present study evaluated whether preschool children would form equivalence classes among photos of abstract objects (2D) and show equivalence generalization to the corresponding objects (3D), printed photos (2D stimuli), and to black‐and‐white drawn pictures (2D stimuli). Six typically developing children were taught arbitrary relations to establish three 3‐member equivalence classes with 2D stimuli presented on a computer screen. AB‐AC baseline relations (for half of the participants) and AB‐BC relations (for the other half) were taught using a multiple‐probe design to assess taught and tested relations. After class formation, three types of generalization probes were conducted: generalization to 3D stimuli, generalization between 2D (printed photos) and 3D stimuli, and generalization to drawn pictures (2D). All of the participants formed the equivalence classes. Two participants met the criterion for all three generalization probe types. Two participants presented mixed results across tests, and two participants did not exhibit equivalence generalization. The results demonstrated equivalence generalization from 2D to 3D stimuli in preschool children, although the variability across participants suggests that such generalization cannot be assumed a priori.     

Effects of Participation in Decision Making on Performance and Employee Attitudes: A Quality Circles Meta-analysis

This study explores the effects of a participative technique, quality circles (QCs), on several employee attitudes and performance. The sample included 36 studies with 42 independent samples. Mean effect sizes were small for employee attitudes and moderate for job performance suggesting QCs affected job performance to a greater degree than employee attitudes. For organizations involved in quality management these results seem to suggest that quality interventions have a stronger impact on job performance than on employee attitudes. The study conclusions provide a positive outlook on the effects of total quality management interventions on productivity.     

The Passive in 3- and 4-Year-Olds

This paper argues that analyzing the patterns of individual subject performance in tests of comprehension of passives might give insight into how little children interpret passives: 3 and 4 year-olds seem to go through a range of passive interpretation, that varies from actual comprehension to total non-comprehension. The fact that some small children understand long and short passives in Portuguese could be seen as evidence that the concept of universal delay for passives is too stringent. We also argue that below chance results and chance results may reflect a relevant difference in children’s behavior in interpreting the passive: below chance results seem to suggest that children interpret the passive as an active sentence.     

Vehicle-representationalism and hallucination

This paper is a new defense of the view that visual hallucinations lack content. The claim is that visual hallucinations are illusory not because their content is nonveridical, but rather because they seem to represent when they fail to represent anything in the first place. What accounts for the phenomenal character of visual experiences is not the content itself (content-representationalism), but rather the vehicle of content (vehicle-representationalism), that is, not the properties represented by visual experience, but rather the relational properties of experience (or of the brain) of representing singular contents, namely particular instantiations of properties. I argue that the Russellian particular-involving proposition is the only appropriate model for the representational content of visual experience and hence that visual hallucinations are just like failed demonstrations.