Figure 2.

Scalp EEG on hospital days 7, 10, and 14 showed right hemispheric PLEDs in the form of sharp and slow waves with a right centroparietal maximum and a discharge rate of about 1/second. Some sharp waves were time-locked to the patient's myoclonic jerks. The background EEG was slow and attenuated on both sides. The PLEDs increased in amplitude and became broader in distribution. On day 20, the EEG showed bihemispheric PSWCs (right lower tracing) alerting the physicians to the possibility of sCJD. For all tracings: screen sensitivity = 5 µV/mm, timebase = 1 second/division. EEG tracings from the left side are in blue and tracings from the right side are in red.