Electrical stimulation over the parietal cortex induces spatial bias by mediating the influence of visuospatial attention on the temporal dynamics of visuocortical processing
Duanghathai Wiwatratana, Sisi Wang, Kitnipat Boonyadhammakul, Kanokkrit Kangwankiat, Piyatida Thongpoo, Geoffrey Woodman, Sirawaj Itthipuripat · FENS Forum 2024
Previous research suggests that electrical stimulation over posterior parietal cortex (PPC) can modulate visual cognition that requires selective attention, yet the specific neural processes affected remain unclear. We hypothesized that tDCS over the PPC influenced the distribution of visuospatial attention by mediating the way selective attention wrap visuocortical processing. We tested this hypothesis using unilateral transcranial direct-current stimulation (tDCS) to the PPC of male and female human volunteers before we recorded electroencephalography (EEG) and collected psychophysical data.
ePoster · Neuroscience