Abnormality of central nervous system electrophysiology abnormal brain wave pattern true https://www.ncbi.nlm.nih.gov/books/NBK390347/ any anomaly in the standard pattern of rhythmic and rapid fluctuation of electrical potential between parts of the brain, often visualized on an electroencephalogram (EEG); the pattern is often measured to diagnose neurological conditions such as seizure disorders (epilepsy) http://www.case.edu/EpSO.owl#AbnormalEEGPattern Abnormal EEG Pattern abnormal EEG pattern MP:0004994 MPheno.ontology abnormal ECoG pattern abnormal electrocorticogram pattern