Do pain expectancies cause pain in chronic low back patients? A clinical investigation

The present study investigated whether pain expectancies cause pain in chronic low back patients. Back patients (N = 29) were requested to perform four exercise bouts (two with each leg), each consisting of flexing and extending the knee three times at maximal force (Cybex 350 System). During each exercise bout the baseline pain, the expected pain and experienced pain were recorded. Patients also reported their experienced fear of further injury to the back. Furthermore, the peak force of both knee flexors and extensors was assessed. Although patients did expect a back pain increase during the first exercise bout with each leg, no evidence was found for the thesis that pain expectancies generate increases in subjective pain experiences. Instead, the reported pain expectancy was readily corrected during the next exercise bout, whereas the experienced pain remained unchanged. Furthermore, a high pain expectancy co-occurred with (1) a marginally significant fear of (re)injury, and (2) a significant lower peak torque of the knee flexors. These results are consistent with conditioning models which state that pain expectations are associated with a fear response and an urge to avoid the pain.     

School Context and Ethnic Minority Adolescent Religiosity: A Longitudinal Study

Previous research has shown that ethnic school composition can have an impact on a number of outcomes for pupils. The influence ethnic school composition has on pupils’ religiosity, however, has not received much attention. Furthermore, the few previous studies that have examined this relationship have relied on cross‐sectional data, thus being unable to separate selection effects from causal effects. In this research note we use longitudinal data collected among pupils in the third (2011–2012) and sixth grade (2014–2015) of secondary schools in Flanders, the northern part of Belgium. We examine changes in religiosity among pupils using cross‐classified multilevel analyses. The results show that there is a positive impact of ethnic school composition on ethnic minority religiosity. This does not mean, however, that pupils become more religious in schools with a higher share of ethnic minority pupils. We rather see that a decline in religiosity among highly religious pupils is attenuated in schools with more ethnic minority pupils.     

Normative Data for the Boston Naming Test in Native Dutch-Speaking Belgian Elderly

A normative study of the 60-item version of the Boston Naming Test (BNT) was performed in a group of 200 native Dutch-speaking Flemish elderly. Analysis of test results revealed that BNT performance in Dutch is significantly affected by age, years of education, and gender. Error analysis disclosed verbal semantic paraphasias to occur as the most frequent error type (1/3 errors). “Don't know responses,” verbal semantic paraphasias, and adequate circumlocutions were found on at least 30 different BNT items and constituted the most diffusely distributed error types. Following a careful review of other normative BNT studies, group characteristics rather than cultural differences were found to account for the difference in the overall mean scores. Our study surprisingly revealed that, as far as American–English, Australian–English and Dutch-speaking elderly are concerned, linguistics do not have an impact on the overall mean BNT score. A linguistic impact, however, clearly holds on the qualitative levels of performance, reflected by fundamental differences in the error distribution in different languages. Language-related BNT characteristics therefore stress the need for specific adaptations of norms.