EEG and fMRI Correlates of Insight: A Pilot Study. - Gennady G. Knyazev; Vadim L. Ushakov; Vyacheslav A. Orlov; Denis G. Malakhov; Sergey I. Kartashov; Alexander N. Savostyanov; Andrey V. Bocharov; Boris M. Velichkovsky (Symmetry, 2021)