The multitude of facial expressions that humans are capable of is particularly potent in capturing attention. Facial expressions provide crucial information regarding a person's internal state and intentions and therefore the rapid recognition of these expressions can facilitate efficient social interaction. This article reviews evidence from a number of domains and argues that common personality traits—that are distributed normally in the general population—can have a profound influence on the processing of facial expressions. It synthesizes data from behavioral and neuroimaging research (...) to illustrate that these personality traits are an important determinant of emotion processing. The article focuses on the processing of facial emotional expressions paying particular attention to the influence of common personality traits in influencing emotion processing. A complete understanding of the cognitive and neural mechanisms involved in the processing of facial expressions, should take individual differences in personality traits into account. (shrink)

Individuals with idiopathic environmental illness with attribution to electromagnetic fields (IEI-EMF) claim they experience adverse symptoms when exposed to electromagnetic fields (EMFs) from mobile telecommunication devices. However, research has consistently reported no relationship between exposure to EMFs and symptoms in IEI-EMF individuals. The current study investigated whether presence of symptoms in IEI-EMF individuals were associated with a nocebo effect. Data from two previous double-blind provocation studies were re-analyzed based on participants’ judgments as to whether or not they believed a telecommunication (...) base station was “on” or “off.” Experiment 1 examined data in which participants were exposed to EMFs from Global System for Mobile Communication, Universal Mobile Telecommunications System, and sham base station signals. In Experiment 2, participants were exposed to EMFs from Terrestrial Trunked Radio Telecommunications System and sham base station signals. Our measures of subjective well-being indicated IEI-EMF participants consistently reported significantly lower levels of well-being, when they believed the base station was “on” compared to “off.” Interestingly, control participants also reported experiencing more symptoms and greater symptom severity when they too believed the base station was “on” compared to “off.” Thus, a nocebo effect provides a reasonable explanation for the presence of symptoms in IEI-EMF and control participants. (shrink)

Deficits in cognitive flexibility have been associated with anxiety and worry, however few studies have assessed cognitive flexibility in the context of emotional stimuli (i.e. affective flexibilit...