Remotely Supervised Transcranial Direct Current Stimulation (tDCS) for Primary Progressive Aphasia (PPA)

tDCS is noninvasive brain stimulation device that modulates brain activity by delivering a low-intensity electrical current (2.0 mA) through scalp sponge electrodes. The device is preprogrammed to ramp up to 2.0 mA (for 30 seconds), provide constant current throughout session (29 minutes), and then ramp down (for 30 seconds) at the end.

During each tDCS session, the tDCS clinician will guide the participant in a word-naming exercise. Participants will be presented with photos of target items and prompted to verbally produce the names of the pictures.