PMC7599360_01
(A) Generalized 3 Hz spike-wave discharges (GSWD); (B) Bitemporal independent 3 Hz spike-wave activity; (C) GSWD, followed by prolonged runs of bitemporal spike-waves.
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EEG showed a high number of generalized 3-Hz spike-and-wave discharges (GSWD) lasting up to 12 s (Fig. 1A). In addition to GSWD, EEG recording contained multiple either short or prolonged (up to 30-40 s) runs of bitemporal independent lateralized spike-and-wave activity (LSWA), with longer ones prevalent on the left side (Fig. 1B). In wakefulness more than half (56 out of 78) GSWD were immediately followed by runs of LSWA (Fig. 1C), whereas only five GSWD were preceded by LSWA.