Serafeim Katsavos, Artemios Artemiadis, Georgios Tsivgoulis, Evangelia Kararizou, Georgios Papadopoulos, Nikolaos Triantafyllou
PURPOSE: In a considerable percentage of individuals with a detectable alpha rhythm in their EEG, bursts of generalized hypersynchronous alpha activity (GHSAA) may occur, during alertness. The aim of this study was to examine whether appearance of GHSAA, which probably generates from transcortical circuitry, shows any correlation with demographic characteristics, underlying normal or abnormal pathophysiology, or substances in use. METHODS: The authors retrospectively reviewed 441 EEG recordings performed in their laboratory during a 1-year period for presence of GHSAA, concomitantly collecting data that concerned symptoms, diagnosis, imaging, medication, and demographics...
October 2015: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society