Figure 1.

Part of the data of channel 20 of chb01 in the CHB-MIT dataset, in which 0–1.5 h is the inter-ictal, 1.5–2.5 h is the pre-ictal, there is a seizure onset near 2.5 h which is marked with a red arrow, which will last for tens of seconds, and the subsequent period is the post-ictal.