Noninvasive Brain Stimulation to Enhance Cognitive Training in Older Adults

tDCS is a neuromodulatory technique that delivers a small electric current (about the equivalent of a 9V battery) to the head. A fixed current between 1 and 2 mA is typically applied. tDCS works by applying a positive (anodal) or negative (cathodal) current via electrodes to an area, facilitating the depolarization or hyperpolarization of neurons, respectively.

Repetitive, drill-like training usually presented in the form of a game that targets a specific cognitive construct.