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

Table 1

Means and standard error of the means (in parentheses) of baseline corticospinal excitability and post-PAS rMTs.

	Young				Older
	Target hem		Nontarget hem		Target hem		Nontarget hem
	Attend right	Attend left	Attend right	Attend left	Attend right	Attend left	Attend right	Attend left
Baseline MEP (mV)	0.94	0.96	0.88	0.79	0.86	0.83	0.84	0.88
	(0.07)	(0.06)	(0.07)	(0.07)	(0.06)	(0.06)	(0.05)	(0.05)
Test intensity (% MSO)	48.15	49.15	50.15	50.05	53.30	54.60	53.75	53.55
	(2.02)	(2.02)	(2.24)	(2.18)	(2.32)	(2.40)	(2.44)	(2.48)
Baseline rMT (% MSO)	40.70	40.45	40.60	41.60	43.20	45.15	43.45	43.45
	(1.62)	(1.49)	(1.68)	(1.50)	(1.72)	(1.93)	(1.72)	(1.89)
Post-PAS rMT (% MSO)	41.00	40.55	40.75	41.30	43.05	44.75	43.75	43.60
	(0.35)	(0.37)	(0.36)	(0.38)	(0.35)	(0.37)	(0.36)	(0.38)