Figure 1.

Example of approximately 23% transcranial direct current stimulation (tDCS) enhancement reported by speech-language pathologists (SLPs) to implement tDCS in practice. For a patient who improves by 10 Western Aphasia Battery–Revised Aphasia Quotient (WAB-R AQ) points following aphasia therapy, the mean reported tDCS enhancement would correspond to a 2-point increase above and beyond conventional SLP therapy. In this hypothetical example, this means clinicians desire a total of 12 points of improvement for conventional SLP therapy paired with tDCS.