Enhanced visual selection after 2 mA cathodal tDCS of right intraparietal sulcus in healthy subjects

Selective visual attention, i. e. the ability to focus on relevant while ignoring irrelevant information in a crowded surrounding is an essential capacity of the human brain for everyday living. Previous studies suggest that the parietal cortex–and in particular the right intraparietal sulcus (rIPS)–is a key region for endogenous control of selective visual attention (i. e. top-down control) and spatial distribution of attention across both visual hemifields. In the present study, cathodal transcranial direct current stimulation (tDCS), a non-invasive brain stimulation technique, was used to modulate rIPS functi…