Contents 1 General introduction 2 Repeatability of long intracortical inhibition in healthy subjects 3 Accurate coil positioning is important for single and paired pulse TMS on the subject level 4 Spatiotemporal dynamics of single and paired pulse TMS-EEG responses 5 Infraslow activity as a potential modulator of cortical excitability 6 Single and paired pulse transcranial magnetic stimulation in drug naïve epilepsy 7 Long-interval intracortical inhibition as biomarker for epilepsy: a transcranial magnetic stimulation study 8 Multimodal TMS has the potential to improve the diagnostic process in epilepsy