Professor of the Department of Neurology at the University of Debrecen, Hungary since 1992.
Visiting scientist in the Max-Planck Institute for Neurological Research in Cologne (1981-83), then one year in Kure City, Japan (1986) half year in Toulouse (INSERM, France). He is the founder of Hungarian Neurosonological Society (1994), honorary member of Austrian Stroke Society. corresp. member of Deutsche Gesellschaft für Klinische Neurophysiologie und Funktionelle Bildgebung. Between 2009 and 2013 he was the president of European Society of Neurosonology and Cerebral Hemodynamics. Since 2015 he is the president of Hungarian Neurological Society. Since 2016 corresponding member of Hungarian Academy of Sciences.
He has published 250 papers on stroke, stroke risk disease, neurosonology and arteriosclerosis.