Evaluation of Phase-Amplitude Coupling in Resting State Magnetoencephalographic Signals: Effect of Surrogates and Evaluation Approach. - Bakul Gohel; Sanghyun Lim; Min-Young Kim; Kyung-min An; Ji-Eun Kim; Hyukchan Kwon; Kiwoong Kim (Frontiers Comput. Neurosci., 2016)