Relationship between MEP latency at T0 and the after-effect of cTBS on the magnitude of MEPs, TEPs and SEPs ipsilateral and contralateral hemisphere relative to the hemisphere onto which cTBS was applied.

<p>(TMS delivered using an AP-PA current direction). (A) At the ipsilateral hemisphere, there was a significant negative correlation between MEP latency at T0 and change in MEP amplitude. Also note, at the contralateral hemisphere, the significant positive correlation between MEP latency and MEP amplitude, as well as (B) TEP N100 amplitude. (C) Finally, note the inverse correlation between MEP latency and the magnitude of the SEP waveform recorded from the ipsilateral and contralateral hemisphere, extending between approximately 50–130 ms, both at T1 and at T2. The grey areas mark the time intervals during which the correlation coefficients obtained at the ipsilateral and contralateral hemisphere were significantly different (p<0.05). (D) At 103.5 ms, the negative correlation between MEP latency at T0 and change in SEP amplitude arrives maximum.