No Modulation of Visual Cortex Excitability by Transcranial Direct Current Stimulation.

ABSTRACT: Measuring phosphene thresholds (PTs) is often used to investigate changes in the excitability of the human visual cortex through different brain stimulation methods like repetitive transcranial magnetic stimulation (rTMS) or transcranial direct current stimulation (tDCS). In several studies, PT increase or decrease has been shown after rTMS or tDCS application. Recently, using PT measurements we showed that the state of the neurons in the visual cortex after rTMS might have an influence on the modulatory effects of stimulation. In the present study we aimed to investigate whether visual cortex activity following stimulation influences the modulatory effects of tDCS as well. In a between-group design, anodal or cathodal tDCS was applied to the visual cortex twice per subject, with either hi

SUBMITTER: Bruckner S 

PROVIDER: S-EPMC5147954 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature