The latter confirms our previous results from heterologous expression systems. Collectively, our results indicate that Zn2+ at low concentrations Selleck GS-1101 enhances LTP by modulating P2X receptors. Although it is not yet clear which purinergic receptor subtype(s) is responsible for these effects on LTP, the data presented here suggest that P2X4 but not P2X7 is involved. “
“Despite its fundamental relevance for representing the emotional world surrounding us, human affective neuroscience research has

widely neglected the auditory system, at least in comparison to the visual domain. Here, we have investigated the spatiotemporal dynamics of human affective auditory processing using time-sensitive whole-head magnetoencephalography. A novel and highly challenging affective associative learning procedure, ‘MultiCS conditioning’, involving multiple conditioned stimuli (CS) per affective category, was adopted to test whether previous findings from intramodal conditioning of multiple click-tones with an equal number of auditory emotional scenes (Bröckelmann et al., 2011 J. Neurosci., 31, 7801) would generalise to crossmodal conditioning of multiple click-tones with an electric Palbociclib supplier shock as single aversive somatosensory unconditioned stimulus (UCS). Event-related magnetic fields were recorded in response to

40 click-tones before and after four contingent pairings of 20 CS with a shock and the other half remaining unpaired. In line with previous findings from intramodal MultiCS conditioning we found an affect-specific modulation of

the auditory N1m component 100–150 ms post-stimulus within a distributed frontal–temporal–parietal neural network. Increased activation for shock-associated tones was lateralised to right-hemispheric regions, whereas unpaired safety-signalling tones were preferentially processed in the left hemisphere. Participants did not Rebamipide show explicit awareness of the contingent CS–UCS relationship, yet behavioural conditioning effects were indicated on an indirect measure of stimulus valence. Our findings imply converging evidence for a rapid and highly differentiating affect-specific modulation of the auditory N1m after intramodal as well crossmodal MultiCS conditioning and a correspondence of the modulating impact of emotional attention on early affective processing in vision and audition. Despite its fundamental relevance for representing the emotional world surrounding us (King & Nelken, 2009), affective neuroscience research has rarely been concerned with how emotionally salient auditory stimuli are processed by the human brain. The few existing studies applying hemodynamic measures have revealed affect-specific prioritised processing of auditory stimuli within a distributed network of emotion-related and sensory-specific brain regions, comprising the amygdala and prefrontal and temporal cortex (Hugdahl et al., 1995; Morris et al., 1997; Royet et al.