Preconditioning with Cathodal High-Definition Transcranial Direct Current Stimulation Sensitizes the Primary Motor Cortex to Subsequent Intermittent Theta Burst Stimulation

Table 4

Comparison of MEP at different intervention groups and at different time points.

Time	Within-group change (95% CI)		Between-group difference in change (95% CI)
	Sham cathodal HD-tDCS+iTBS	Cathodal HD-tDCS+iTBS
Raw MEP (μV)
From 5 min to baseline	258 (100, 417)	529 (371, 687)	270 (47, 494)
From 10 min to baseline	297 (140, 456)	680 (522, 839)	383 (159, 606)
From 15 min to baseline	276 (118, 434)	750 (593, 909)	475 (251, 698)
From 30 min to baseline	91 (-67, 249)	645 (487, 803)	554 (330, 777)
Normalized MEP (%)
From 5 min to baseline	33 (12, 53)	69 (48, 89)	36 (7, 65)
From 10 min to baseline	38 (17, 58)	89 (68, 109)	51 (22, 80)
From 15 min to baseline	35 (14, 55)	98 (77, 118)	63 (34, 92)
From 30 min to baseline	12 (-9, 32)	84 (63, 105)	73 (44, 102)

MEP: motor evoked potential; CI: confidence interval; ; .