Figure 1
EEG of Patient 1. (A) The first recording at age 10 years shows continuous bilateral synchronous and asynchronous epileptiform activity with discrete slowing in the post-temporal and occipital regions (paper segment). Montage: longitudinal bipolar. Trace duration: 10 s. (B, C) The principal findings of continuous bilateral synchronous and asynchronous epileptiform activity with occipital predominance persist from the first recording at 10 years (A) to the recording at 22 years (B) and at 38 years (C). Montage: average reference; 30 mm/s; 12.4 s trace duration; 100 μV/cm; High-pass filter (HF) 70 Hz; low pass filter (LF) 0.50 Hz; notch 50 Hz.