[Observation of an absence status in the EEG without clinically detected psychopathology]

It is reported that a patient suffering from generalized idiopathic epilepsy accidentally showed continuous epileptic activity as spike-wave pattern during an electroencephalographic lead without observing any clinical changes to whom. This state having been ended by a grand mal, the patient could give unspecific subjective complaints for the period of the "bioelectrical petit mal state", but he was fully able to remember. It is referred to that the phenomenon of the clinical inconspicuous appearance and the missing amnesia are special features.