Network-level mechanisms underlying effects of transcranial direct current stimulation (tDCS) on visuomotor learning.

ABSTRACT: Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation approach in which low level currents are administered over the scalp to influence underlying brain function. Prevailing theories of tDCS focus on modulation of excitation-inhibition balance at the local stimulation location. However, network level effects are reported as well, and appear to depend upon differential underlying mechanisms. Here, we evaluated potential network-level effects of tDCS during the Serial Reaction Time Task (SRTT) using convergent EEG- and fMRI-based connectivity approaches. Motor learning manifested as a significant (p<.0001) shift from slow to fast responses and corresponded to a significant increase in beta-coherence (p<.0001) and fMRI connectivity (p<.01) particularly within the

SUBMITTER: Sehatpour P 

PROVIDER: S-EPMC7778833 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature