Neural mechanisms of the EEG alpha-BOLD anticorrelation

NeuroImage
J C Pang, P A Robinson

Abstract

An experimentally tested neural field theory of the corticothalamic system is used to model brain activity and resulting experimental EEG data, and to elucidate the neural mechanisms and physiological basis of alpha-BOLD anticorrelation observed in concurrent EEG and fMRI measurements. Several studies have proposed that the anticorrelation originates from a causal link between changes in the alpha power and BOLD signal. However, the results in this study reveal that fluctuations in alpha and BOLD power do not generate one another but instead respectively result from high- and low-frequency components of the same underlying cortical activity, and that they are inversely correlated via variations in the strengths of corticothalamic and intrathalamic feedback, thereby explaining their anticorrelation.

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Citations

Oct 3, 2019·Physical Review. E·J C Pang, P A Robinson
Apr 8, 2020·Case Reports in Neurological Medicine·Praveen SripadJürgen Dammers
Jul 20, 2021·Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia·Jiannan KangXiaoli Li

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