Anxiety is a prevalent psychological factor associated with atopic dermatitis (AD). AD patients generally suffer from a high anxiety level, and psychological treatment documents a positive effect on the anxiety level, as well as the course and management of the disease. The Dermatology Life Quality Index (DLQI) has been suggested as a relevant clinical measure in AD. This study investigated the relationship between the severity of AD, dermatological life quality and anxiety. Thirty-two adults suffering from AD were examined using the Severity Scoring of AD Index (SCORAD), the DLQI and the Spielberger State-Trait Anxiety Index (STAI). Twenty-two healthy controls were examined using the DLQI and STAI. Results showed that the AD group had higher anxiety and lower dermatological life quality than the control group. In the AD group a significant positive correlation was found between SCORAD and DLQI and between DLQI and STAI. However, no correlation was found between SCORAD and STAI. The results suggest that: (i) both severity of eczema and anxiety are important for dermatological life quality; (ii) psychological inferences should not be made from the severity of eczema, but from the psychological measures, and vice versa; and (iii) both dermatological and psychological assessment is important in AD.

In pathological gamblers dopamine release in the ventral striatum appears to be associated with increased excitement levels despite lower IGT performance. The results might suggest a 'double deficit' function of dopamine in pathological gambling, where dopamine release reinforces maladaptive gambling through increasing excitement levels, reducing inhibition of risky decisions, or a combination of both. These findings may have implications for the understanding of dopamine in pathological gambling and other forms of addiction.

Sensation seeking is a core personality trait that declines with age in both men and women, as do also both density and availability of the dopamine D 2/3 receptors in striatum and cortical regions. In contrast, novelty seeking at a given age relates inversely to dopamine receptor availability. The simplest explanation of these findings is an inverted-U-shaped correlation between ratings of sensation seeking on the Zuckerman scale and dopamine D 2/3 receptor availability. To test the claim of an inverted-U-shaped relation between ratings of the sensation-seeking personality and measures of dopamine receptor availability, we used PET to record [ 11 C]raclopride binding in striatum of 18 healthy men. Here we report that an inverted-U shape significantly matched the receptor availability as a function of the Zuckerman score, with maximum binding potentials observed in the midrange of the scale. The inverted-U shape is consistent with a negative correlation between sensation seeking and the reactivity (“gain”) of dopaminergic neurotransmission to dopamine. The correlation reflects Zuckerman scores that are linearly linked to dopamine receptor densities in the striatum but nonlinearly linked to dopamine concentrations. Higher dopamine occupancy and dopamine concentrations explain the motivation that drives afflicted individuals to seek sensations, in agreement with reduced protection against addictive behavior that is characteristic of individuals with low binding potentials.