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Πέμπτη 29 Μαρτίου 2018

P3-3-1. Features of the correlation between the sites of EEG based on the difference in duration of epileptiform discharges

To investigate differences in the duration of epileptiform discharges, wavelet-crosscorrelation analysis was performed to identify correlations and time-lags between sites of the brain. Electroencephalography recordings were categorized into two time spans according to the duration of the epileptiform discharge: short run, 2–3 s; and long run, ⩾3 s. Both runs were subcategorized into before, during, and after epileptiform discharge groups. The EEG was divided into 2-s segments. In all patients, wavelet-crosscorrelation coefficients (WCC) and time-lag (LAG) at 6 Hz were calculated between all electrodes, and between all electrodes and the temporal region electrodes for each segment.

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