Research Article

Corticospinal Plasticity in Bilateral Primary Motor Cortices Induced by Paired Associative Stimulation to the Dominant Hemisphere Does Not Differ between Young and Older Adults

Figure 1

Time course of experiment. Row A denotes the time course for the left hemisphere (target M1), and row B denotes the time course for the right (non-target) hemisphere. MEPs were acquired by stimulating the left M1 followed by the right M1 pre-PAS and 5, 15, 25, and 35 minutes post-PAS. Resting motor threshold (rMT) was determined at two time points for each hemisphere, once before and once following PAS.