Patient 1 Patient 2 Patient 3 Patient 4 Patient 5 Frequency of EEG abnormalities (on a 6 hour recording) One One One One Rare Type of EEG abnormalities Single abnormal asymmetric sharply contoured K complex Single abnormal asymmetric sharply contoured K complex Sharp wave Single abnormal asymmetric sharply contoured K complex Asymmetric focal rhythmic sharp theta Location of EEG abnormalities P4 (right parietal) C3 (left central) C3 (left central) FP2 (right frontal) F7-T3

Table 2: EEG abnormalities of the patients.