[EEG after sleep deprivation in patients with unequivocal and equivocal epileptic seizures, as well as no epileptic patients (author's transl)].

In 107 patients the EEG after sleep deprivation was performed. The patients have been divided in three groups: 1) with clinically unequivocal, 2) equivocal and 3) no epileptic seizures. All the patients where subdivided in those with and those without anticonvulsive medication. In patients with a previous normal EEG, sleep deprivation had the most activating effect regarding focal or generalized spikes or spike wave complexes in group one. However, patients without medication showed more often activation compared with untreated patients. In the second group the activation was less pronounced, again presenting the same relation between treated and untreated patients. Patients with no seizures as well as a control group of 20 volunteers had no activation at all.