Although compulsive sexual behaviour (CSB) has been conceptualized as a "behavioural" addiction and common or overlapping neural circuits may govern the processing of natural and drug rewards, little is known regarding the responses to sexually explicit materials in individuals with and without CSB. Here, the processing of cues of varying sexual content was assessed in individuals with and with...

SUMMARY – Cerebral autoregulation is a mechanism that enables relatively constant cerebral blood flow during variations of cerebral perfusion pressure. The differences between cerebral blood flow at rest and after administration of a potent vasodilatory stimulus test such as hypercapnia reflect cerebral vasomotor reactivity defined as the vasodilation capacity of cerebral arterioles to external...

The application of Brain Computer Interface (BCI) technology in stroke rehabilitation represents one of the most challenging matters in the BCI field. With the aim of developing a specific BCI system for stroke rehabilitation of the upper limb we monitored the EEG sensorimotor reactivity to actual and imaged hand grasping in a group of stroke patients consecutively enrolled from a rehabilitatio...

relationship to proportion of regulatory T cells. Methods: Forty-five patients with history of systemic symptoms of allergy to Hymenoptera venom were included. Basophil reactivity before the treatment and after one year of allergen immunotherapy (AIT) was measured by CD63 expression, CD203c marker used for basophil identification. Cells were stimulated by aqueous solution of allergen in concent...

Oil-derived products can be subjected to conditions that promote oxidation of their unsaturated components during storage and use. The materials arising during oxidation and subsequent degradation can seriously impair the quality and performance of such products [1, 2]. Thus, oxidative stability is an important issue to face before studying their catalytic reactivity. The fatty acid alkyl chain...

In a recent paper, Descostes et al. (2004) present data on a series of pyrite oxidation batch experiments conducted near pH 2 and 3 where they demonstrate very well the non-stoichiometric dissolution/oxidation of pyrite in acidic solutions through an extensive laboratory investigation of S/Fe ratios. The authors utilized this data to propose a ‘mechanism’ of pyrite oxidation based on these data...

The role of interoception and its neural basis with relevance to drug addiction is reviewed. Interoception consists of the receiving, processing, and integrating body-relevant signals with external stimuli to affect ongoing motivated behavior. The insular cortex is the central nervous system hub to process and integrate these signals. Interoception is an important component of several addiction...

-A mixed-layer kaolinite/smectite (K/S) containing trace amounts of quartz, discrete kaolinite, goethite-hematite, and calcite was hydrothermally reacted with deionized water at 150", 200", and 250"C for 1 to 12 months. The starting K/S contained 50% smectite consisting of 15~ low-charge and 350 high-charge layers. The X-ray powder diffraction and chemical analyses of the reacted products indic...

A sulfhydryl-arylating quinone from the mushroom Agaricus bisporus, with an absorption maximum at 490 nm, was demonstrated to inhibit DNA polymerase a purified from calf thymus. The "490 quinone" could be generated through tyrosinase-mediated oxidation of y-i-glutaminyl4-hydroxybenzene or y-u-glutammyl-3,4-dihydroxybenzene. However, when y-L-glutaminyl-3,4-dihydroxybenzene was oxidized to y-L-g...

BACKGROUND Increased alcohol cue-reactivity and altered inhibitory processing have been reported in heavy social drinkers and alcohol-dependent patients, and are associated with relapse. In social drinkers, these two processes have been usually studied separately by recording event-related potentials (ERPs) during rapid picture presentation. The aim of our study was to confront social drinkers ...