Figure 1
Investigations at age 5 weeks. (A) EEG during sleep at the age of 4 weeks showing focal discharges on left centro-median derivations, associated with asymmetry of activity, slower on the left hemisphere. (B) Asymmetric fragmented hypsarrhythmia, greater on left than right derivations. Axial T1 (C), coronal T2 (D), and sagittal T2 (E) MR images at the age of 5 weeks, showing completely formed, but thin, corpus callosum and normal myelination for age, without other gross abnormalities.