Effects of bilateral anodal transcranial direct current stimulation over the tongue primary motor cortex on cortical excitability of the tongue and tongue motor functions

Transcranial direct current stimulation (tDCS) is a non-invasive tool for inducing cortical excitability changes [1]. Numerous studies have investigated the effects of tDCS over the primary motor cortex (M1) for exploring mechanisms underlying cortical plasticity and motor functions of the limbs. However, little is known about the effects of tDCS on the tongue region. Here, we investigated the effects of anodal tDCS over the bilateral tongue M1 representation relative to those of unilateral anodal tDCS on tongue region cortical excitability and tongue and jaw motor functions.

Source: BRAIN STIMULATION: Basic, Translational, and Clinical Research in Neuromodulation - October 8, 2019 Category: Neurology Authors: Hitoshi Maezawa, Carmelo Vicario, Min-Fang Kuo, Masayuki Hirata, Tatsuya Mima, Michael A. Nitsche Source Type: research