Table 1.

CSP and MEP amplitudes in IGE group (mean ± SD)

Parameter/stimulation intensity	Control group (n=38)	IGE (DH) (n=38)	p value	IGE (NDH) (n=38)	p value
Cortical silent period, ms (%)
120	86.8 ± 27.0	127.4 ± 32.8	<0.001*	134.4 ± 32.2	<0.001*
140	129.5 ± 34.5	156.9 ± 20.6	0.006*	163.1 ± 31.3	0.002*
150	148.7 ± 35.5	172.7 ± 28.7	0.024*	181.9 ± 28.4	0.002*
Motor evoked potential amplitude, mV (%)
120	0.700 ± 0.491	0.803 ± 0.318	0.458	0.845 ± 0.400	0.314
140	1.666 ± 0.208	1.391 ± 0.567	0.608	1.401 ± 0.591	0.622
150	1.956 ± 1.436	1.631 ± 0.632	0.404	1.644 ± 0.788	0.432

CSP was measured at three stimulus intensities: at 120%, 140% and 150% greater of resting motor threshold. CSP, cortical silent period; MEP, motor evoked potential; IGE, idiopathic generalized epilepsy; SD, standard deviation; DH, dominant hemisphere; NDH, nondominant hemisphere.

^*p<0.05