Nakonechny P. I. RussiaSaratov Saratov State University, ul. Astrakhanskaya, 83, Saratov, 410012, Russia zorg1331@gmail.com Additional info Научные интересы – анализ временных рядов, информационные технологии. Author's articles ROLE OF MODEL NONLINEARITY FOR GRANGER CAUSALITY BASED COUPLING ESTIMATION FOR PATHOLOGICAL TREMOR