From the clinic to the lab (and back) : a call for laboratory research to optimize cognitive-behaviour treatment of pain

Cognitive behavioural therapy (CBT) is the dominant psychological treatment for chronic pain. CBT covers a mixture of aims and a broad range of techniques, including attentional control, modification of maladaptive beliefs and coping strategies and flexible goal setting and acceptance. Patients are exposed to varying selections of these strategies, and a major challenge for clinical practice is to determine what works for whom in which context. We propose that incorporating laboratory research into translational behaviour medicine is a critical developmental step that will help optimizing CBT and provide examples of representative experimental research programs

Fixed point iteration on pointsymmetric interference graphs

Interference graphs are used for performance analysis of multiprocessor interconnection networks. In order to model blocked transmissions, nodes can have three states: idle, active or blocked. The resulting steady state probability distribution has a non-product form. Macro states are introduced to calculate performance measures, and the corresponding macro state probability distribution is approximated by a special type of fixed point iteration: the macro approximation, which is very efficient for pointsymmetric interference graphs

Complexes of block copolymers in solution: tree approximation

We determine the statistical properties of block copolymer complexes in solution. These complexes are assumed to have the topological structure of (i) a tree or of (ii) a line-dressed tree. In case the structure is that of a tree, the system is shown to undergo a gelation transition at sufficiently high polymer concentration. However, if the structure is that of a line-dressed tree, this transition is absent. Hence, we show the assumption about the topological structure to be relevant for the statistical properties of the system. We determine the average size of the complexes and calculate the viscosity of the system under the assumption that the complexes geometrically can be treated as porous spheres

Surface mobility and structural transitions of poly(n-alkyl methacrylates) probed by dynamic contact angle measurements

Dynamic contact angles and contact-angle hysteresis of a series of poly(n-alkyl methacrylates) (PAMA) were investigated using the Wilhelmy plate technique. The mobility of polymer surface chains, segments, and side groups affected the measured contact angles and their hysteresis. A model is presented in which contact-angle hysteresis of PAMA's is explained in terms of the reorientation of polymer chains and segments at the interface of the polymers with water and air. The contact angles observed also indicated structural transitions in the polymer surfaces of PAMA's that were dependent on alkyl side chain length and temperature

LYING ABOUT WHAT YOU KNOW OR ABOUT WHAT YOU DO?

We compare communication about private information to communication about actions in a one-shot 2-person public good game with private information. The informed player, who knows the exact return from contributing and whose contribution is unobserved, can send a message about the return or her contribution. Theoretically, messages can elicit the uninformed player's contribution, and allow the informed player to free-ride. The exact language used is not expected to matter. Experimentally, however, we find that free-ride depends on the language: the informed player free-rides less-and thereby lies less frequently-when she talks about her contribution than when she talks about the return. Further experimental evidence indicates that it is the promise component in messages about the contribution that leads to less free-ride and less lying. © 2013 by the European Economic Association