Authors	Task	Frequency	Intensity	Electrodes position	Results
Feurra et al., 2011	measurements of corticospinal excitability at rest	5 Hz, 10 Hz, 20 Hz, 40 Hz	1 mA	Left M1, parietal cortex, ulnar nerve	20 Hz increased MEPs size at rest
Feurra et al., 2013	measurements of corticospinal excitability at rest and during motor imagery	5 Hz, 10 Hz, 20 Hz, 40 Hz	1 mA	Left M1	20 Hz increased MEPs size at rest while 5 and 10 Hz increased MEPs size during motor imagery
Cancelli et al., 2015	measurements of corticospinal excitability at rest	20Hz	2.2 mA	Bilateral M1	Differences in cortical excitability enhancement  with respect to  personalized and non-personalized electrodes
Guerra et al., 2016	measurements of corticospinal excitability at rest	7 Hz, 20 Hz	1 mA	Left M1	20 Hz tACS modulated SICI, ICF  and SAI