TY - JOUR
T1 - Nonlinear interaction decomposition (NID)
T2 - A method for separation of cross-frequency coupled sources in human brain
AU - Idaji, Mina Jamshidi
AU - Müller, Klaus Robert
AU - Nolte, Guido
AU - Maess, Burkhard
AU - Villringer, Arno
AU - Nikulin, Vadim V.
N1 - Funding Information:
VVN was supported in part by the HSE Basic Research Program and the Russian Academic Excellence Project ‘5–100’. KRM was supported in part by the Institute for Information & Communications Technology Promotion and funded by the Korea government (MSIT) (No. 2017-0-00451 ), and was partly supported by the German Ministry for Education and Research (BMBF) under Grants 01IS14013A-E , 01GQ1115 , 01GQ0850 , 01IS18025A and 01IS18037A ; the German Research Foundation (DFG) under Grant Math+, EXC 2046/1, Project ID 390685689 . This research was partially funded by the German Research Foundation ( DFG, SFB936/Z3 and TRR169/C1/B4 ).
Funding Information:
VVN was supported in part by the HSE Basic Research Program and the Russian Academic Excellence Project ?5?100?. KRM was supported in part by the Institute for Information & Communications Technology Promotion and funded by the Korea government (MSIT) (No. 2017-0-00451), and was partly supported by the German Ministry for Education and Research (BMBF) under Grants 01IS14013A-E, 01GQ1115, 01GQ0850, 01IS18025A and 01IS18037A; the German Research Foundation (DFG) under Grant Math+, EXC 2046/1, Project ID 390685689.
Publisher Copyright:
© 2020 The Authors
PY - 2020/5/1
Y1 - 2020/5/1
N2 - Cross-frequency coupling (CFC) between neuronal oscillations reflects an integration of spatially and spectrally distributed information in the brain. Here, we propose a novel framework for detecting such interactions in Magneto- and Electroencephalography (MEG/EEG), which we refer to as Nonlinear Interaction Decomposition (NID). In contrast to all previous methods for separation of cross-frequency (CF) sources in the brain, we propose that the extraction of nonlinearly interacting oscillations can be based on the statistical properties of their linear mixtures. The main idea of NID is that nonlinearly coupled brain oscillations can be mixed in such a way that the resulting linear mixture has a non-Gaussian distribution. We evaluate this argument analytically for amplitude-modulated narrow-band oscillations which are either phase-phase or amplitude-amplitude CF coupled. We validated NID extensively with simulated EEG obtained with realistic head modelling. The method extracted nonlinearly interacting components reliably even at SNRs as small as −15 dB. Additionally, we applied NID to the resting-state EEG of 81 subjects to characterize CF phase-phase coupling between alpha and beta oscillations. The extracted sources were located in temporal, parietal and frontal areas, demonstrating the existence of diverse local and distant nonlinear interactions in resting-state EEG data. All codes are available publicly via GitHub.
AB - Cross-frequency coupling (CFC) between neuronal oscillations reflects an integration of spatially and spectrally distributed information in the brain. Here, we propose a novel framework for detecting such interactions in Magneto- and Electroencephalography (MEG/EEG), which we refer to as Nonlinear Interaction Decomposition (NID). In contrast to all previous methods for separation of cross-frequency (CF) sources in the brain, we propose that the extraction of nonlinearly interacting oscillations can be based on the statistical properties of their linear mixtures. The main idea of NID is that nonlinearly coupled brain oscillations can be mixed in such a way that the resulting linear mixture has a non-Gaussian distribution. We evaluate this argument analytically for amplitude-modulated narrow-band oscillations which are either phase-phase or amplitude-amplitude CF coupled. We validated NID extensively with simulated EEG obtained with realistic head modelling. The method extracted nonlinearly interacting components reliably even at SNRs as small as −15 dB. Additionally, we applied NID to the resting-state EEG of 81 subjects to characterize CF phase-phase coupling between alpha and beta oscillations. The extracted sources were located in temporal, parietal and frontal areas, demonstrating the existence of diverse local and distant nonlinear interactions in resting-state EEG data. All codes are available publicly via GitHub.
KW - Cross-frequency coupling
KW - EEG
KW - ICA
KW - Independent component analysis
KW - MEG
KW - NID
KW - Nonlinear interaction decomposition
KW - Nonlinear neuronal interactions
UR - http://www.scopus.com/inward/record.url?scp=85079516189&partnerID=8YFLogxK
U2 - 10.1016/j.neuroimage.2020.116599
DO - 10.1016/j.neuroimage.2020.116599
M3 - Article
C2 - 32035185
AN - SCOPUS:85079516189
SN - 1053-8119
VL - 211
JO - NeuroImage
JF - NeuroImage
M1 - 116599
ER -