I did an experiment where I use maximal electroconvulsive shock (50 Hz, 40mA, 0.2s and 0.5ms). In this experiment all of my WT mice shows normal seizure behavior but My KO mice showed very high and long jump and after that fall in to the floor it shows exact normal behavior.

I am querying anybody has this kind of experience and what will be the explanation.

For your kind information I used PTZ as well where my WT mice shows GTCS and the KO mice don't show any GTCs but the EEG measure shows lot of spike in KO mice with no GTCs.