Polarity-dependent modulation of multi-spectral neuronal activity by transcranial direct current stimulation.

ABSTRACT: The ability to preferentially deploy neural resources to the visual space is an important component of normative cognitive function, however, the population-level cortical dynamics that sub-serve this ability are not fully understood. Specifically, rhythmic activity in the occipital cortices (e.g., theta, alpha, and gamma oscillations) has been strongly implicated in this cognitive process, but these neural responses are difficult to non-invasively manipulate in a systematic manner. In this study, transcranial direct-current stimulation (tDCS) was used to modulate brain activity, while high-density magnetoencephalography (MEG) was employed to quantify changes in rhythm-specific neural activity in the occipital cortices of 57 adults performing a visuospatial processing paradigm. All MEG dat

SUBMITTER: Wiesman AI 

PROVIDER: S-EPMC6234070 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature