Impact of tDCS on Emotional Processing in Healthy Subjects.

The dorsolateral prefrontal cortex (DLPFC) plays a key part in emotional processing and regulation. Emotions continually influence other cognitive functions such as attentional resources .Emotions also influence a subject\'s automatic physiological responses . Transcranial direct current stimulation (tDCS) is an innovative neuro-modulation treatment, often used in major depression. Various studies have shown that it is possible to modulate emotional processing in healthy subjects, however the impact of this modulation on attentional resources and physiological responses has not been studied. Also, the mechanisms of action of the tDCS on emotional processing are still unclear. It is necessary to explore the modulation of the DLPFC in healthy subjects in order to better understand the network and mechanisms at stake in the processes. Thus, investigators plan to study the modulation of the DLPFC (left and right) by tDCS (anode, cathode and placebo) on the processing of emotions and the impact on attentional resources, and physiological responses.