Table 2

 Duration of spikes on ECoG and scalp recordings, and duration of modelled (calculated) scalp spikes from ECoG spikes

PatientDuration ECoGDuration scalpDuration modelled scalp
nMeanSDnMeanSDnMeanSD
14753.02-150 15.91488.821.9
21043.02-150 13.96282.919.8
31541.92-150 12.3684.619.7
41458.92-150 24586.418.667213.7
52355.32-150 13.42368.815.32064.214.8
62365.32-150 21.418107.828.71574.42-150 26.2
5105.6 (ln)19.2
71346.62-150 19.37106.434.1
82154.92-150 19.54097.024.1
91245.62-150 20.31069.023.0955.312.65
104765.62-150 17.53140.2(F3)15.4
65.62-150 17.51388.0(A1)19.9
112245.02-150 15.11376.623.1
123260.72-150 16.41074.515.6978.618.8
132256.323.22360.017.2
145355.72-150 18.11872.327.12578.821.7
15849.02-150 11.57010043.9
166337.02-150 14.511676.928.81150.72-150 10.5
  • 2-150 Significant differences with the duration of measured scalp spikes. Most patients show significant differences between ECoG spikes and measured scalp spikes. However, most patients with calculated scalp spikes show no differences between measured and modelled scalp spikes. n=Number of discharges; ln=considering spikes restricted to the lateral neocortex.